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7-1962
• Y1iJAL fpGt 1001CAL 13Y1~1MAYC FOR RARTIAt OAYMCNY Porlodical l stimnte No, 1~z & 1_ na7. Period. `;optumlxr 59 l9(;y to July 20, 19614`_._.... Name of Owner, ty of DanL°ra u A[icirtss;_ i•luni.(Anal 131~d1;` •-Donlon, 'Par.au Nanao of Coutr,nctor:. Elm Fork Comrti•uat:to)) Co., .l'ne. Address:-P'Q'13cax 20196•-Dallas 701 '[bran Tyne of Prof oct; 1J3tor '1'rontmont Plant Exrjnnsi.on -E.Stlmnted ConLract cost: $ 3?5,+200.00 Unit Qunntlty Quantity Unit ompl of No' DESCRIPTION 0)'' ITEM of Orlgqinul C'nmtt,loted prico Complelyd _ Moum F7stlmnla to faato Work 1, 1"01' aonFtraation and completion of Wator 'l'roatmont Plant Lxpanoion L,S. 1 100~$31.8 ON100 9. Laboratory 1 x l~cui[mont L.S. cr 1 ].on .~2~92~:.,1~. 5U13-'1`p'fn $5211893-99 X,XTRA WORK a. Roroato 15" sower to ol.ear uti.lAty polo $ 60,00 b. 101 pj.r o kicker on 20" wash water h actor 147,00 a. Asphal, taok ooat on plant roadway $2.80' d, Addi:Li.onal clootrical, outlets in lr borator/ SU D-TOPAI $501.1.0' Grodit duo city or. Winton for ro-loootion of 2 M.G. Gloarwo,ll ~~2G1.35 't`otal Value of Original Contract Varforrmt; " 21 E;9,.q ` G., Shown Above or "01 I~ j xlCrrn Work 1'erformed•- >.].U - Attaehell Stntomuat dit to U tlr C - r it~nk,rrinks nst> urt•-Shown Above or 26735 mmmmm~ ~ Attached Stntemont Total Valuc of Work to Date 322,].27,714 l sUrnato Prepared by and boss: Amount Retained Mono of Nona Recommended for Payment VRLEVt NICHOLS &,LN.'DRI~]SS Not Amount Earned on Contract 322'127'714 ~_.1 fl /r / Less: AnaUlillt of 1'CLV1Ul[9 Payments 3139316,1418, Dates_aa_ obor 22, 19614 BALANCE DT'ti1 THIS; ESTIMATE f4 3011-30 M i INSURANCE CERTIFICATI ,THIS is TO CIkTIFy THAT the polity, if any, descrl6ed in Im 1 herof hat boom issued by the Tsxae Implsyere' Insurance Aswdotion a! Insurer, that the pesky, If any, esserib$it In Iturn 9 hereof hat bean lowed by tteh. Implayvs National Insurance Company, at Insurer, and/or that the pellcy of ppellctos, If any, destribod in from 7, Item 4, Item 80 or ltem 6 hers~of have bean luusd by the employes casualty Company, at Inwror, to the Insured dodenated In this torlNNato, and that each such policy or polldoa, 10h act to the limits of Ua611lty, oHdudons, preVhlont, <andlti$01 and ether terms thoroof, are In full force and effect as of the date of this certificate with efloedve datos as shown herein. If any such polity is cancelled or Is not ronswsd at the requetl of either the Insured or the Insvrot, or If any such polity or any ronswal thereof Is ehoneed In any manner of for any reason is as to affect this CeNifIcalu ten t t da s' ptier written notice will 6e mailed by the Insure to the tortiflcois holder, harem named THI CIAfIFICATION OF INIURANCI AS SHOWN IN THIS Ce~NFICATI REMAINS IN IFFICT UNTIL TEN DAYS' PAIOA WRITTEN NOTICE IA MAILED TO THE CIRTIFICATI HOLDER (at Ike addross shown 64w) AS AIOVI FkOViDIO, or if a date Is shown In the (Alum" headed "oxpIrallon date," such Insurance shall expire ollher upon surf date, of upon the dote specified If, wrote" Mollie mailed ten days pilot thereto, whichever dote (hall (list occur, NAME AND ADDRESS OP CERTIFICATE 11OLDERy EFFECTIVE DATE 0' THIS CERTIFICATE h City of Denton is~ti€o 14un.oipal. Building Denton Taxies 'T'exas Employers' ATT4NI Mr. Frank Drummond Insurance Association Direotor of Utilitien DALLAS,'I'EXAS BY - . '-iior(1a3`kepresenfof7vo} NAME AND ADDRI.'SS OF INSURED 1?Y ~)._L'1gY _Fe. Cry g, _ 9~7.4e _l~f r Emp)oyera Natlonal Insurance Company DALLAS, TEXAS IAulhoiced kearelantnlivel ~`--v----- F1m Fork Conetsruation Company, Ina, ;sroM4_ Ps Os (lox 131196 Dallas I Texas Employers Casualty Company DALLAS,'rAXAS BV IAuI rlxalAepresonla vet TY d W C i .gal tapoeHen r STATE AND Date Pots 'et~_ ^i1iF.Tley Klne Policy Number on1 AetNO"f OrA~etoeeFr LOCATION OR 4ptkATION3 7ti m-I~Cowrouo Fatly Compiles WIfM kequlromedt of _--A~- +,1611 owes WerhmeM's ompensatlon Lew Y' gig Cor=m01 °~""'~~y trArt OF TEXAS _ A~Thinerol _ X1 X X ~ $25,000 - _ coyote" Fusty Compiles WIhNosimiremenh oTF coyote" E - Ceveaee And ordewel The/ef X X X $46,000 $25,000 riem'T cov en. Fully Cempelaes~ With Requirtw;4; y ~INN~fy y 7! ~ Cev~aye ~a And Rene a1 Theree~ X X X $45,000 $25',00~0 Iadlly Nrn Y NOt - t O-Ve ~~"~larv 53552?, .}1bQ,o~io, ;;30010(100 teiae►lo"ir AM., rs NY nplE~ tral IMINI I AN CANA9 RA Ie bfOMP Ard Keno lieinT- Bally Theieel gyg urv '135522 1100.000, S 00 000 _ A lief u rr AI p N N of g pr,mor-ty Andhiwelal X . X X . siQ9,,O.QO.e._~t!bw..__ YfSSI~~lONfA~IdOGAHAO~ Ifem7- - S S ; A"d Nooetrne el REMARKS S W S - _ All Operations in the Btlteinesa o£ the inam,od for t3Le Jobl Water Treatment Plant for the City of Denton, Denton, Texas, Contrast Noe 62.5e TIC04500 (1.1.60) Typomitsr 1450I'MImoo; 45".00-tol 4343.Oupllinter t - e1q Jiikwary 3, 1163 Mr. U, Farrow ),U11, Fork t on i truct liar, CuMk,,MI q P. 0. E}ux Jt}196 Doi` $i'r, k'rax`row. A.t t:,lclt~,tJ J1tiL`i:t91.t:Jti, >Jtrra i".ttrrJ (ai1Lr x4at:ixLracJ (.;(Joy of c;J~+.t: r ;ca tiA'cic•x u~ribcr~ t}ire,, rd t°}1{;3 tit)r+va L•c~ (rrt~a r;c,el ?'t.~.k~.►~J (rr~~1sE-,gun,.} +1;t,1, LI 1,111i ~.1t'.y , v(1,rot.t-I y CHANGE OR EXTRA WORK ORDER PROJECTI lhl'ol, Tpotti'mont 11lttnC CONTRACTi 69-I) OWNERI (;-i.4sy ul, DWII;uty CONTRACTORI 1,11m York ftj(;, CHANGE ORDER NO, I. DATEI tlovrxnl :r 1.9, 1962 CHANGE OR EXTRA WORK TO BE PERFORMED Chuttl;c Cho "'1':1.111o vt (ium;,9.aC).orl" :['nett 300 culorldal. (b,t,yr, wxtu3a:Srlsx}cP~4 aH apecilf.tstl in contract to ):oad na fol.l.owul hlartt if) Cu be uui:ntnntially completed rind mada nvailabl.r! Co Lhe City of Denton to produco fi)t0rod wncel. by Jurlr! 1.a1:) 1-46:3, Not (incroaso) (decrease) in contract amouni Ilene Revised eonfract amount ;;~2 ji200,t10 Not (inuroaso) (dOOrOASO) In conlrecf ilmo of completion Soy dortr.r .ItL:i. n r:.';> ve Ravisod contract timo of completion Junto I, j 1.963 Rocommonded by Approved by OWNERS Ole' DJEi!TOll, TP;XAS FREESE, NICHOLS AND ENDRES$ y Y Ay . Approved CO TRACTOR bldrlbullon~ Iti.i2i 1'0 Z' f 0, ~10~, 1 --Ownu :0 ~1'[t, r I-~Conhaalor I~P.N,&F.0111cs DENTON, TEXAS WATERWOR'd5 IMPROVEMENTS WATER TuEArmw PLANT EXPANSION ' AnDEDUM NOa A Bide to be Openedl 10100 A.M., July 20, 1962 S F ,A't10N5 1. Item No, 270 _ Butterfly Valveai Add the following sentence to Paragraph C, page 210.•11 "Valve discs shall be of alloy oast iron conforming; to Military Specifications MIL-0.858a, Class 1." 2. Item No, 211 - Sluice Gates Paragraph D9 add .following to description of Item No. 21 "Floor stand shall be Rodney Hunt Model, 5.2600'.A or approved equal." The description of Item No. 3 shall be changed to "Rodney Hunt Machine Company, Series 14511 in lieu of "Series 140". 3. Item No. 403 . Electrical Equipments Add the following to j paragraph P, page 463.31 "Station #11 - 4 Push-t.o«talk Switches Station #13 W Teletalk ,',emote #504,1V The second paragraph under Paragraph P shall be changed to reads "The Station #1 Master shall initiate and receive calls from Station #2 through 08, and #13. Remote Stations #2, #3, and #13 + shall be able to initiate calls to the Master,' 4, Sheet No. 11 The 361, concrete cylinder pipes to the proposed steel storage tank, both inlet and outlet, shall be cradled with concrete at all places where the pipe is beneath the proposed plant roadway, Cradle shall be Class E eonorete, with 4" minimum depth below pipe and 12" minimum overall depth. Cradle shall be aoross full width of pipe trench and for full length of pipe beneath roadway. 5. Add the attached sheet No. I-A to the Plana. This sheet covers the installation of a waste sludge lino from the water treatment «l. plant to Psoan Creek, All pipe installation# manholen, concrete, atop, shall be in accordance with tie applicable seotions of the specifi- cations, Payment for all work included on Sheet No, 1-A shall be made as a part of the lump sum bid for Contract No, 62.5. Bidder shall acknowledge receipt of Addendum No. 1 in the apace provided in tha Proposal. FRMSEi NICHCi,S AND RNDRMS Couaulting Engineers Port Worth, Texas July 6, 1962 CITY OF DEJTON, TEXAS WATERWORKS IMPROVEMENTS PLANS, SPEC IFMdATIONS AND CONTRACT DOCUMNTS FOIL 4 MCD EXPANSION OF WATER TREATMENT PLAVT CORM 'T NO, 6P-5 JULY 1962 FREESE~ NICHOW AND ENDRESS Consulting Enginsere TABIE OF CONTENTS f'atce INVITATION TO BIDDERS a INFORMATION AND SPECIAL INSTRUCTIONS TO BIDDERS h PROPOSAL g PREVAILINO wAOE RATES k CONTRACT AGRFEMENT 1 PWORMANCE BOND 3 PAYMENT BOND 5 GENERAL CONDITIONS OF AGREEMENT 7 DETAIL SPEQIFICATSONSt SECTION I - GENERAL CONSTRUCTION SPECIFICATIONS Item No. 100 . General Requirements 101 Clearing and Grubbing and Topsoil Surfacing 102 • Earthwork 103 Concrete for Structures 104 Concrete Structures 105 - Reinforcing Steel 106 - Motal for Structures 107 - Steel Struotures 108 - Sewer Pipe and baying 109 - Foundation for Steel Storage Tank 7,10 - Roadway and paving 111 - Sanitation and Clean Up SECTION II. MECHANICAL SPECIFICATIONS Item No. 201 - General Mechanical Requirements 202 - Flocoulators 20~ - Sludge Collootors 20 - Filter Media 205 - Filter Underdrains 206 - Instrumentation and Control 207 - Filter Surface Wash Equipment 208 - Gate Valves 209 - Check Valves 210 - Butterfly Valves .f.tem No. 211 - Sluioe Oates 212 - Piping and Pipework 213 - Installation o.f Raw Water Pumping unit 214 - 0algon reading Equipment 215 - Exhaust Pane and heaters 216 - Plumbing 217 - Air Conditio,,ing Uuots 226 - Sludge Reoiroulation Pump SECTION 111- ARCHITECTURAL SPECIFICATIONS Item Noe 301 - Masonry 302 - Foam Conorete Roof Dook 303 - Roofing and Sheet Metal 304 - Misoellaneous Items 305 - boors, Frames and Windows 306 - Waterproofing and Caulking 307 - Olass and Glazing 308 - Hardware 309 - Painting 310 - Laboratory Furniture 311 - Vinyl Tile Flooring 312 - Lathing and Plastering SECTION IV - ELECTRICAL SPECIFICATIONS Item Noe 401 - general Eleotrioal Requirements 402 - Eleotrioal Wiring 403 - Eleotrioal Equipment INVITATION FOR BID"a Sealed Proposals addrestied to Homer B. B:ly, City Manager of Denton, Texas, will be received at the office of the City Manager in the Municipal Building until 10100 A.M,, July la, 1962, for the construction and com- pletion of CONTRACT N0. 62.5 - WAVR T aATIE NT PLANT EXPANSION At this time and place the proposals will be publicly opened and read aloud. Any bid received after closing time will be returned unopened. Copies of Plane, Specifications, and Contraot Documents are on file and may be examined without oharge in the office8 of the Director of Utilities and Freese, Nichols and Cndress. Copies may be procured from Freese, Nichols and Endress, 407 Danciger Bldg., Ft, Worth, Texas for a charge of $10,00 per set. A full refund for the first eat will be made to all General Contractors who submit a bonafide bid to the City. No other refunds will be made, A oashier'a cheek, certified check or acceptable bidder's bond, payable to the City of Denton, Texas, in an amount not lean than five (5%) percent of the bid submitted must accompany each bid as a guarantee that, if awarded the contract, the Bidder will, within ten (10) days of award of contract, enter into a contract and execute a bond on the forms provided in the Contract Documents. Attention is called to the fact that not leas than the prevailing wage rates as established by the City of Denton, Texas, and as hereinafter set forth in the Contract Documents hereinbefore described and which are made a part hereof, muet be paid on this project, A porformarice bond and a payment bond, eaoh in amount of not less than one hundred (1000 per cent of the contract price, conditioned upon the faithful performance of the contract and upon payment of all persons Supply- ing labor or furnishing materials, will be required, In case of ambiguity or lack of clearness in stating proposal prices, the City of Denton, Texas, reserves the right to adopt the most advantageous construction thereof, or to reject any or all bide, and waive formalities, No bid may be withdrawn within thirty (,10) days after date on which bids are opened, CITY OF DI NTON, TEXAS Homer B. Bly City Manager a INFQ1ATIONJIT S 1ECIAL IN3TRUCTIONS_TO BIDDrRS A. VK k„t be Vo„nes The work involved under this Contract oonniats of furnishing all materialsy appliances, toola, equipment (except that to be furnished by the Owner), transportation, services and all labor and super. intendence necessary for the aonstruoti.on and completing of a 4 MOD expansion to the existing Water Treatment Plant, The work is comprised of the following major itemas pipe gallery and piping, filter units and controls, filter building, flooculator basins, sedimentation basins, foundation for steel storage tank, installation of raw water pumping unit, pipework, etc. The plant, when completed, shall be in operating condition and all equipment shall function properly. B. w rro£~Contra t a Alternate Bid: Bidders are requested to submit a proposal for "Baso Bid" and for an ADD or INDUCT" item as provided in the Proposal. The "Base Bid" shall be for the complete pro,inot ae shown on the Plans and as provided by these Speoifications, util}zing B-I-I1' Industries, Inc, filter control equipment. The "ADO or DEDUCT" item shall be the amount to be added to or deducted from the base bid amount for the construction of the complete project utilizing filter control equipment manufactured by Simplex Valve and Meter Co. The Owner will evaluate the bids received and the award will be made as determined to be the most advantageous to the Owner. Co Materials r r i hod by Owners Under a separate contract, the Owner 1•}111 furnish to the Contractor for his installation the raw water pumping unit with motor starter. Also, under a separate contract$ the Owner will furnish the 2 MAO. steel ground storage tank with eraotion to be done by the tank supplier. This Contractor shall construct the foundation for the tank, and although he will have no responsibility for constructing the tank, he will be expected to work harmoniously with other contractors to the end that proper installation can be made. It is desired that the tank foundation be oom. pleted and ready for tank installation by December It 1962, D. dime of Completions The Owner dovires that the prajeot be substantially completed and that the plant be in operation by June 10 1963, Considera- ti'sn will, be given in award of the contract to the completion dates bid. Bidders shall indicate the time for completion in the space provided in the Proposal, In the event the Contractor fails to complete the project within the time not forth in the Proposal, the Owner may withhold rmanently from the payments to the Contractor the sum of Fifty ($50,0O Dollars per day as liquidated damages, as set forth in Saction 4,04, page 17 of the General Conditions of the Agreement. b Prior to boginning the work, the Contractor shall furnish the Engineer with an anticipated progress schedule covering all of the work to be performed under this Contract. During construction, the Contractor shall revise the schedule as required to reflect as nearly as possible the actual construction operations. The Contractor shall also furnish the Engineer with a sehoduls showing ordering date and Delivery date of all items of equipment and materials; these dates shall be keyed to the proposed progress schedule for the work. E. Didder's_Know-lodge-of Conditionat Prior to the submission of a Proposal, the Bidder shall have made a thorough examian Lion of the site of the work and of the plans and specifications, and shall become informed as to the nature of the proposed oonstruetion, the kind of facilities re- quired to carry out the construction, labor conditions, and all other matters that may affect the post and time of completion of the work upon which he bids, F, i Forms Bids shall be made on the blank form attached and the com- plete documents and plans returned with the bid. Bids not so made will be considered out of form. 0. Pk SS_e~ou_r_i_tyi mach proposal must be accompanied by a certified check or acceptable bid bond in an amount equal to at least five (5~) per cent of the amount bid as a guarantee that, if awarded a contract, the bidder will execute such contract within ten (10) days in the form hereto attached and make bonds of one hundred (100%) per cent of the contract price. H, Perf rm nce Bonds With the execution and delivery of the contract, the Contractors a~~ furnish performance bond for the full amount of the contract. Wnd shall be executed by an approved surety company authorized to do business in the State of Texas, and acceptable according to the latest list of companies holding Certificates of Authority from the Secretary of the Treasury of the Unit. i States of America, Performance Bond shall be arranged to extend for a period of one (1) year beyond the date of written acceptance of the work by the Owner, to guarantee the repair and/or replace. ment of defeetivo materials and/or workmanship which may develop during this period, 1. ba ment Bondi In addition to the pv ormanoe bond, tho Contractor shall furnish a payment bond for tho full amount of the Contract. Payment bond shall be executed by an Approved surety aompa;iy authorized to do business in the State of Texas, and acceptable according to the latest list of oom- panier holding Certificates of Authority from the Secretary of the Treasury of the United States of America. J. Interpretation of Snocifica ionei Any question as to the meaning of any specifications will be answered by Addendum which will be sent to all who have been furniuhed with the plane and specifications, K. W e Rate Ms The Labor Classifications and Minimum Wago Hates set forth herein have been predetermined by the City of Denton, Texas, in accordance e with statutory requirements, as being the prevailing classifications and rates, and shall govern on all. work performed by the Contraotor or any sub-contractor, L. Patented Designs, Devices, Materials and Proceanonl If the Contraotor is required or desires to use any device, material or process covered by patent, trademark, or copyright, he shall make suitable legal agreement,4 or provisions for such use, and the contract price shall, without exceptio:t include all royalties or costs required by reason of nuoh use. The Contractor and his Sureties uhall indemnify and save the Owner harmless from any and all claims for infringement by reason of the use of any device, material or process in connection with the work agreed to be performed under these Contract Documents which is covered by any patent, trademark or copyright, and shall indemnify the Owner for any cost, expense or damage which it may be legally obligated to pay by reason of such infringement at any time during or after the completion of the work{ provided, however, that the Owner will assume the responsibility to defend any and all suits brought for the infringement of any patent by reason of the design or type of construction specified in the Contract Dooments, and to hold the Con- tractor harmless on account of such suits, M, Payments Payment will be made at the lump sum bid for the work, complete and in working condition ne shown on the plans and as herein specified. The cost of all struotures, piping, concrete, furnishing and installing equip- ment, and all other work shall be included in the lump sum b'' d. Changes in the contract plans calling for additions or deductions in the amount of rein- forced concrete, piping, etc., shall be at the unit price bid for, additions or doductions listed in the Proposal, providing such changes be authorized by the Engineer. N. Drawings-And-Other Data Re uire of the Contraotor) The Contractor shah submi to the ngineer four copiea each of all shop and ereotion drawings and schedules, schematic or system diagrams, outline and founda. tion or attachment drawings, data sheets, catalog outs, bulletins, or other descriptive material as is customary or its may be specifically required by the Engineer for each of the following itemas a. Concrete forms and falsework b. Concrete reinforcing steel o, Structural steel, handrails, gratings and other metal spocialties d. Piping skid nupports, including all Kinch diameter and larger cast iron steel, reinforced concrete, and steel cylinder ooncroto pipe, etc. e. Valves and gates, 6 inches and larger f. Arahitoctural spscialtien, windows, doorn, plumbing, hardware, oto, g. Electrical. Equipmont h. Filter Control. Equipment i, Filter Underdrain System J. Filter Surface Wash Xqui.pmant Ic, Flocculator Mechanisms 1. Sludge Collector Mechanisms m. Other items as requested by Lngineol~a d The drawings or other required descriptive material will be examined and approved, corrected, or rejected by the Engineer with reasonable promptness, All rejected or corrected material shall be revised and re- submitted until approval is obtained, Delays caused by such rejections will not be considered cause for extension of the contract time. Approval by Engineer indicates general compliance or acceptability; however, it does not relieve the Contractor of final responsibility for proper dimen- sions, character, quantity, quality, atrungth or sufficiency of the items involved, waivers or exceptions to the plans and specifications may be validated only by writing, from the Engineer which specifically identifies the feature and no such waiver or exception shall be allowed as a result of omissions or oversights in examining and approving the above drawings or other material. In addition to the foregoing, the Contractor shall furnish the Owner with four (4) bound sets of all operating instructions, main- tenanee manuals, and parts lists for all mechanical electrical equipment furnished under the Contract, 0. Manufacturer's Representatives The manufacturer of all treatment equipment, and other special equipment, shall furnish without cost to the Owner the services of a representative of the equipment company who shall have had experience in the installation of units of similar size and character, This representative shall make an inspection of the installation, assist in the testing of equipment and assist in the work- ing of final adjustments so that the equipment will be in first glass operating condition, P. State Sales Taxi The City of Denton, Texas, qualifies as an exempted agunoy under Go limited Sales, Excise and Use Tax Rules and Regulations of the State of Texas which set forth regulations on the 2~ tax on sales in Texas. So that the City and the Contractor may he exempted from payment of the P.1% sales tax on materials purchased and installed on this project, the Contractor will be required to submit to the City prior to the final estimate a statement or bill setting forth the total cost of the materials purchased for installation separated from the total cost of the skill and labor ser- vieee required for their installation, Itemized quantities for each type and size of materials is to be included in the material cost billing. 'Cho sum of those two costs shall equal the total and final cost of the project. Upon receipt of this statement, the City of Denton will then issue a Certificate of Exemption to the Contractor that he may pass on to his sup- prior. In the event that the total material cost on the project is less than $1,000,00, the above procedure will be optional to the Contractor. Q. Wator for Constructions The Owner will furnish all water required during cons runt n at no cost to the Contractor, Water will be available at an existing fire hydrant, and all. piping, valves, and fittings requirod for connection thereto shall be furnished and installed by the Contractor, R. Cost Broakdowns Within thirty (30) days after the execution of the Contract, and not lose than fifteen (15) days prior to the first monthly eatimato, the Contractor shall submit to the Engineer a cost breakdown of e the work under his Contract, This breakdown is for une by the Engineer in preparing the monthly estimates and for the Owner's use in cost accounting for the project. The breakdown shall bo in detail, itemizing al], items of equipment and construction and shall arnurately reflect the cost of all work as included in the bid prices. Cost, breakdown shall be such that an overall cost of the various elements of the project can be dotermined. S. Conneetione to Existing Faoilitiess It will be necessary, during the oour a of oonstruotions to make several connections to the existing plant, both with piping and with influent and effluent flumes in the basins, All work involved in making connections which will require a shutdown of the existing plant shall be carefully planned and coordinated with both the Engineer and the Owner an that "down" time of the existing plant may be held to a minimum, On occasions when the exioltng plant is down for purpose of making a oonneotion, work shall procesd on a 24-hour schedule until the plant is back in operation. T. Est for k in Sri s Filling shall be done slowly at a rate not to exceed two 2' feet of depth per hour. When the basins have been filled to the effluent weir level they shall be allowed to set for three (3) days. The fall in thv water surface shall be measured aocueat4y at least twice each day to determine how muoh water is being lost to leakage and absorption. During that time the perimeter of the basins shall be observed for any possible leaks, All, observed leaks shell be repaired regardless of whether the amount of leakage falls within tl allowable limits, The maximwa allowable leakage with the basins full will be 0,3 gallons per square foot of concrete contact area per 24 hours. In the event tho basins lose more than the maximum allowables the Contractor shall drain the reservoir. In draining; the reservoir the last four feet shall be drained out slowly, not to exosed ono (1+) foot per hour. U, Pro act Si as The Contractor shall 1r ovide and maintain one suitable pro,jeot identification sign at, location designated by the Engineer. Sign shall be of suitable quality in color and text ae provided by the Engineer. END or INFOR14ATION AND SPECIAL INSTRUCTIONS TO F31DDERS f I PROP( A L NO'1'F;t DO NOT IETACH PROPOSAL FROM HOUND DOCUM M. Denton, Texas J_ x, 2200 + Igo PROPOSAL OF..,. Elm Fork-Constr. Coos Inc* a corporation organized iznd existing under the laws of the State of I=& TO THE OITY OF DENTON, TEXAS PROPOSAL FORt The construction of the Water Treatment Plant Expansion, Contract No. 62•,°x, as shown on the plans and covered in thu specifications and other Contract Dooumentse The undersigned bidders pursuant to the foregoing ''Invitation for Bids", has carefully examined the Information and Special. Instructions to Bidders, this Proposal, the form of Contract and its general and supplemental conditions, the Speoificationa, the Plans, and also the site of the work,' and will provide all necesssey labor, superintendence, machinery, equipment, tools, materials, services, acid other facilities to fully complete all the work as provided in the Contract Documents; and binds himself upon acceptance of his Proposal to execute a contract, performance Bond and Pay- ment Bond according to the presoribed forme for performing and completing the said work within valendar days. Item Estimated Uesoription unit Extended Noy __uanjitv (Price f. Written Wgrjg) P.i a t E 1 L.S. For the construction and com- pletion of the Water Tniatmemt Plant Expansion utilizing 13-1-F Industries, Inc, filter control c3uipment+ the lump sum of.MMe Hurd~red Eighteen Thousand Nip Hwy 4nndd no 100 Dollars $ 31$,900.00 9 Item Estimated Description Unit Extended t Kftia to be-Written. in Womal., Pri Amount 2 L.S, For the furnishing and instal. lation of Simplex Valve & Meter Co, filter control equipment in lieu of equipment specified under Did Item Noo It ADD or MDUCT (mark out one) ..Y._ Not . Dollars $Not. AgrdeA r. ADD or MDUCT Items for variation from Contract Plane and Specificationst 3 10 C.Y, Extra Close A Concrete not shorn on the Plena, inoluding axoavation, forma, etc., ooetplets in plaos P'iftZ fW KO/100 D*1lA M w r r w :.Par Cubic Yard TrMri.Iwrr ~.r' 00 k 10 Olt Extra Class E Concrete not ohm on the Plane, including exoava. tion, forms, eto., complete in Dc lUs w r r r rww.ir:r.Tw rwwiwiw r Cubic Yard $u0.0o $-.IQ& go 5 2000 Lbe, Extra iRcinforoing Steel not shown on Eho Plans, oomplete in place S No Do~;lArs and Fiftden~Cents w w r r w r r r w r w r w . ~ rrlrAtrrY~w w Y r w r w Per PVund.-is r 2.0% NO wrYa b, 2.0 Tons Fxtra Dell and Spigot Cast Iron Pipe, not shorn on the Plans, complete in place _Three Hundred-FifIy,and No 00_.DoUara w r. r r r w w w r r• w r. Per Ton $X ,00 1oo.OQ...._. r h OWN Item Estimated Description Unit Extendod A109 Quantity (Price to be Wri+.o An w"rdg) price mount 7 290 Tons Extra Bell and Spigot Cast Iron Fittings, not shown on the Plane, complete in place ®._Fcur`rMmdrtd $:.A No/100 Dollars r r r . W r 'rrrrrr - Per Ton $4O " 80000 S 1s0 Ton F,xtra Flanged Cast Iron Fittingo net shown on the Plans, complete in place 4 SSix Hundred and 121)a • Doll~ I~ r r r• r r r M r Per Ton ' &m. oo 9 L.S. 14boraViry squipaent to be selso±iAl by, owner and purohased j by Cantrao!;orf • : Throe 'i'houeand jg no/i00 DoUal,e 3.000.0Q„~... TOTAL AMOUNT OF BASE HID (Item l plus Items 3 thru 9) $-321,200*00 NOM Items 3 thru 90 inclusive, are intended to be "ADD" or "DEDUCT" items. Within ten (10) days after acceptance of this Proposal$ the undersigned will execute the formal contract and deliver approved surety bonds for the faithful performance of the Contract. The attached bid surety in the avcunt of Frosnt of_ the highest total pjzn„t 5) is to became the property of the City ui'Denton, Texas$ in the event the Contract and Bonds are not executed and delivered within the time above set forthy as liquidated damages for the defy and additional work caused theratV, i The undersigned acknowledges receipt of the following addendst No. 1 Respectfully submitted, 8U FORK CONSTR. COat INC. ATTEST= r (8ea1 it Sid4ar 4e • Cbrporztion) Ed M. Fat'r'oirt 3aoywTraas. P. 0. Box 1 186 Oallasp Texas ree"~ , 3 MYAILT10 l ANTE F,Qji~Ei iJICg~ CO "fit C QL. The rates below have been determined by the City of Donton, Toxas, in accordance with the statutory requirements and prevailing looal wages, Overtime shall be paid for at the rate of one and one-half (]:I) times the regular rates for every hour worked in excess of forty (40) hours per week, QUSSI?ICATION RAT PFR HI S F1 & Z RATE PER HR Air Compressor Op, $ 1.50 Laborer (Common) $ go Air Tool Operator ,80 Maintainer Oper, 1.75 Batterboard Setter ,85 Mason Tender ,80 Bell Hole man 1000 Master Meohanic 1,875 Blade Grade Operator Meohanio 1,50 (Self-Propelled) 1175 Mechanic's Helper 1100 Blade Grade Op. (Towed) Is% Mixer Oper. (14 OF & Over) 1.75 Blaster (Powderman) 1000 Mixer Oper, (Less than 14 CF) 1.50 Bricklayer 2.06 Mortar Mixer 1000 Bullolam Operator 1.75 Bulldozer Operator 1,75 Oiler 1000 Carpenter 1,625 Painter, Brush 1,75 Clamshell Operator 1,75 Painter, Stage Spray 2,00 Concrete Finisher 1,75 pipe Layer 1000 Cram Operator 1075 Power Equip, Op, Reavy 1.75 power Equip, Op, Light 1.50 Derriok Operator 1075 Power Saw Operator 1,625 Dragline Operator 1075 Pump Gperator, Over 2" 1,50 Purnp Operators 2" & Loss 1000 Elevating Grader Op,(`Powed) 1,50 Itollor Operator 1,50 Hine Grader a85 Fireman 1,25 Scraper Or„ (Ovel° 7 CY) 1.75 Form Builder 1150 Scraper Cp. (7 CY & Undor) 1,50 Shovel Operator 1475 Greaser 1,25 Trenching hfachine Co, 1,75 Hoist Oper. (One Drwn) 1,50 Truck Driver (1 TO or less) ,y0 Hoist Oper, (2 Drum & Over) 1,75 Truck Driver (1 To Over) 1010 Iron Worker (Rodman) 1,50 Welder 1075 Iron Worker (Struo, Steel) 1,75 Joint Worker 1,00 Kettleman ,85 Contractor shall comply with all State and Foderal laws applicable to such work, The above are minimum rates, Bidders shall base their bide on rates they expect to pay, if in excess of those listed. The Owner will not consider claims for extra payment to Contractor on account of payment of wages higher than those speoiriede k CONTRACT AGREEMENT STATE OF TEXAS COUNTY OF DWON THIS AGREEMENT, made and entered into this day of A. D., 19 , by and between Otto of Dontm of the County of Luton and State of Texas, acting through itaf OM , thereunto duly authorized so to do, Party of the First Part, hereinafter termed the OW*,R, and su Korlt Cogatr. Ce.. Lwo of the City of DAIW , County of _ D&W" and State of TIqm~ Party of the Seoond Part, hereinafter termed CONTRACTOR, WITNESSETHs That for and in consideration of the payments and agreements hereinafter mentioned, to be made and performed by the Party of the First Part (OWNER), turd under the conditions expressed in the bonds bearing even date herewith, the said Party of the Second Part (CONTRACTOR) hereby agrees with the said Party of the First Part (OWNER) to commenoe and complete the construction of certain improvements desoribeO as follows 4 MOD Zy*mxon of Wata Tmattont Pl*nt Controot No. 62.+ and all extra work in oonneotion therewith, under the terms as stated in the General Conditions of the Agreemontl And at his (or their) own proper cost and expense to furnish all the matoriale, supplioo, maahinery, equipment, toolmf superintendenoe, labor, insurance, and other nooensories and services neoessary to complete the said construction, in accordance with the condi- tions and prices stated in the proposal attached hereto, and in accordance with all the General Conditions of the Agreement, and in accordance with the 3-5-62 1 plans, whioii includes all maps, plats, blueprints, rind W.hcr drawings and printed or written explanatory matter thoroof, and t,ho Specifications thero- for, as prepared by AZEESE, NICHOLS AND ENDRESS, horoin entitled the ENGINEER, each of which has been identified by the COMM':'TOR and tho ENGINEER, to- gether with the CONTRACTOR'S written Proposal, the Oonoral Conditions of the Agreement, and tho Performance and Payment Bonds horoto attachods all of which are made a part hereof and collectively evi.denoo rind constitute the entire contract, The CONTRACTOR hereby agrees to commence work within ton (10) days after the date written notice to do so shall have been given to him, and to substantially complete said work within 0 cal dnr days after the date established in the written notice to commence wor, nib,joot to auch exteii- si.ons of time as are provided by the General and Special Conditions. The OWNER agrees to pay the CONTRACTOR in current funds the price or prio3s shown in the proposal, which forms a part of this contract, such payme„`s to be sub,jeot to the Genol-al and Speeinl Conditions of the contract. IN WITNESS WHEREOFi the pRrtios tc these presents have executed this Agreement in the year and day first above written, ATTESTI TIM CITI OF DIMOAlP TKXM ~r Y Party of tho First Part, OWNER {SEAL) ATTEST 91A FORK CONNY CO** XNO* Party of Seaon. !'art, CON+ TEtACT-ORr ~.d M. ~'~~row~ l~apr.»z'+y++r~ (SEAL) 3-)'.62 2 PERFORMANCE BOND STATE OF TEXAS COUNTY OF TJ1tN`rON d KNOW ALL MEN BY THESE PRESENTS= That R IA Iftk Oonstn• Co.i Inc. of the City of D4jW , County of DAU" , and State of T"" r as PRINCIPAL, and Mall ieft 1gig's~ ZastlwniM C ISr as SURETY, authorized under the laws of the State of Texas to act as surety on bonds for prinoipals, are held and firstly bound unto the Tbs 01*7 of n Tome as OWNER, in the penal sun Tbrw Modred T"00V Five Tbw~M ~ of . T" Modred sad !I Dollars Ms~*00 for the payment whereof, the said Principal and Surety bind themselves and their heirs, administrators, executors, successors and assigns, jointly and soverally, by these presentst WHEREAS, the Principal has entered into a certain written contract vith the OWNER, dated the day of , 19•„_, for the construction of 4 " trim of Watrr Tmtaent Pleat Conlrrot No$ 62-3 which contract is hereby referr,~d to and made a part hereof as fully and to the samd extent as if oopied at length herein NOW, THEREFORE, TM, CU NDXTiON OF THIS OBLIGATION IS SUCH, that if the said Principal shall faiinfu7ly perform said Contract and stall in all respeots duly and faithfully observe and perform all and singular the oovenants, conditions and agreements in and by said oontr.aot agreed and oovenanted by the Principal to be observed and porformad, and according to the true intent and meaning of said Contract and the Plans and Speoifi.. cations horeto annexed, then this obligation shall be void; otherwise to remain in fu.1 force and effect= PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Article 5160 of the Revised Civil Statutes of Texas as amended 3-5-62 3 by acts of the Seth Legislature, Regular Session, 1959, and all liabilities on this bond shall be determined in accordance with the provisions of said Article to the same extent as if it were copied at length herein. PROVIDED FURIM ER, that if any legal action be filed upon this bond, venue shall lie in -_Dentors County, Stato of Texas. Surety, for value received, stipulates and agrees that no change, extension of time, alteration or addition to the terms of the contract, or to the work performed thereunder, or the plans, opeoifications, or drawings accompanying the same, shall in anywise affect its obligation on this bond, and it does hereby waive notice of any such change, extension of time, alteration or addition to the terms of the contract, or to the work to be performed thereunder. IN WITNESS WHEREOF, the said Principal and Surety have signed and sealed this instrument this day of ► l9 ~,E'! i►OEtK 0fiH81'it~ 00.. DiO. A~t't~tl~ ~llafr~u~ ,fig ~ Principal Surety B BY... r- r G. L Title .._Ed, & ~'al'mo ~+-7't*"9 Title ~+tokr•kr~iN rwax s Address . F oC ~1D6 i,un rl15IJ111'1 UINFIN ~n.ucl. Address Dallas 20g Tatar (SEAL) (SEAL) The name and address of the Resident Agent of Surety a.ul c , DALLAS I, TI"OXA8 'r'otet Date of Bond must not be prior to date of Contract. 3-5-G2 z. PAYMENT 130ND STATIC, OF TISXM' ~ COUNTY OF_DENTON ~ KNOW ALL MEN I3Y TIEK'FE PRESENTS: That ._f?'Li4 1t Cawtr. ogta Yttia, of the City County of Dallas and State of r as I'MN0111Ah9 and Awrrio" Avimts'! y1 -U MM as SUMY, authorized under the laws of the State of Texas to not as surety on bonds for principals, are held and firmly bound unto the _ Oity at jontang 1 00as as OWNER, in the penal sum of Thu+MM Rwdrod riiwonk n" 'mod To liaedrad " No 'lOp Dollars (k; 9OO±GO ) for the payment whereof, the said Prinoipal and 5uroty hind thomnolvon and their hairs, administrators, exao- Hors, sueoossors and assigns, jointly and severally, by those presonter WHEREAS, the Principal has entered into a certain written oontraot with the Owner, dntod day of lq , for the oonstruotion of 4 wag Hoy ftsion of W&trnr Tyrs+rrt~nir_Pynt - Crv~t ~4 6~.y which oontraot is horeby refhrred to and rondo a part hereof as fully and to the same oxtnht Ab & noplod at length herein. NOW, 'I'EltJtl!;F'Olu , 'ru. CONDITION OF THIS ONIJOATION 13 SUCH1 that if the said Prinotpal shall pay all olaimaka supplying Inbor and material to him or a su.lx)ontvaotor in the prosecution of the work provider) for in said oontraot, then this obligation shall, be voi.dl othorwi.so to remain in full forne and offeotj PROV1b13D, 110W)"''VER, that, this bond in nxeoutnd pursuant to the pro- viaiona of Artiols 5160 of the Revised Avil Stntuton of Texan as amended by aoto of tho 50th LegI s.l.aturo, Regular Sonsion, 7759, and all liabilities on this bond MIT bo determined in nooordanoo with the provisions of said Article to the, same oxtent as if it wrro oopind at length heroin. I'MV'IDT?D FORT111",R, that If any legal notion be filed upon this Mond, venae 5hall Jio in Gounty, ;Rata of Toxan, Surety, for value received, stipulates and agrees that no ohange, extension of time, alteration or addition'to the terms of the oontraot, or to the work performed thereui.~Rr, or the plans, specifioations or drawings aacompanying the same, shall in ar~-wise affeot its obligation on this bond, and it does hereby waive notioe of any sub„ hnnra, extension of time, alteration or addition to the terms of the oontreat, or to the work to be performed thereunder, IN WITNESS WHEREOF, the said Prinoipal and Surety have signed and sealed this instrument this day of _ P 19 FU !0(~K OOKSTR• s 006 If1C• AWIOAH MtM& B, + Pt9~lf~AIVfJG. G4 +AN,l Prinoipal Surety By 0Lr~YU.w By J FA .e Title~_~'ll~M SMOMTr , ~u xM Title. A'I'1O1)UItNlF- .Y IN MM Address P. Of 1415 iln,isi.rr~' UNION r11,65 Address- DALS,Ar~ Jj TEXAS WUS 20P Tons (SEAL) (SEAL) The name tlr;d address of the HW,dont Agent of Surety 1,91 DA 1.1,A:', J, API?.AAA Notos Date of Bond must not be prior to date of Contraot, 3'-5-62 G b .-vv q b,u& $uaw tv s rays A T .1 -11p a t^~ Lv' k~'tiro WOav Fo~~ y u o- t~{ b ' 1 u. v • ~ v ~ a. r a ~ H ~ ~ v r ~ I. "r', .v `rJ ~i3 1i M fn 91. r,u p!' l(E,, aJ a~ ,Q M .n 'v t`! r ~w o " taJli ;;.V trl a .r~ a d3 V ~ '71 ~ O i. U 7 % •ry ~ H iJ q V ? ti H ti 3 fl / FI ~ ~ ~ N r. L F. G s MM' M } v u •u „ %1 ro ro b CO ~ :n, 1 v ti .c „ L aro M y Y ~i 1 d~ , rtiE Zu Il N °nt ' y j c 0 U L,i3 " O a A II/~ 1 rrAteyI { I I fo !~j rc , .Y. JU •u o 01 ' u F In d ~ ~i o W ryry TJ M M' O ti cdd a q r H p p" r: f 5 ' n' rl W • ' l7 3 ° ~ f~ r. a 7i y o, o$ v J ct q,r r i W ly (3 ' a o L. O ~ u ~ ~ ~ 1,, a ~ ~ o ti "L w .i r C G t 'p~ n)1,~•, ~r V ~ r' i9 o p ~ %i L-` Q . ! 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I~ ,p:.~3 p :1 'p ~ ~ ~ 'U GU ~ ~ ~ R r {{°~1' ~ v ' ~i~~ n 3 g ri - .~1 ~i O y a `u y .c~j M Fo, p' W 4 ~i • C.1 a s O V i i~ r Q t c u, o. r It1 n I"' O . V W d : e' 'V in i M C r~ t4 1~ r T o n ~.c: c;. I~ la v j• NN , 3 3 :l U, u i 7 M O It1 :1, L 1 ? % u ti h r IN W a g •u c o' u F E o fi7 It! ~1 A Z I4 l4 p y f~ 7 1 p M r c i c' 1 i t l 1 .ti tj ad a b v r p v v✓ a L M c v [I ' n^ I v ► d n d t r, o ►•V t1 ' I , E A ` F tr ` J ° c• r c7 ,a ~ , IS u r-J t• v y M ..Z I ✓ L 5 + . c I t,~ rl h n; At a tt ,u t.. t 1 ~I s, i W v , t f L e % t r t, r, ,1 N ° M 07" Mtn u ` C H ll~ b ~>1 ill ,ri O K "Y tli O i7 !w t~ " a J h, q Z y r I % tt r ,J u I V) I d ° t' / a d C ! ~ ~ p;,% vv"kntbrv`rM ~ ~c~ t,.~ o a tt i~t( f/1 0 r o W i CL rl , n o p t, . r ~ O W !j .~1 ri ;3 ' tE l r-1 I W H t r~ r H / n!' O ~ U 7 i~ o !b c-I r n I i! 7 tl y r'• I ii Et: l vi 31 1~ O a ! ~ R r t f I 7 • c i~ ~,d a° J C~J u 7 o f l~ v o ~ ~ r: ~ ~ h•I h t'1 Ci 1 s n td r , r.,y ~ y , ~ M ~ v III 1v i Er . L M F! r• ~j ,1~ 'U ~ J ~ G ~ L • v Y X i+ u V 'U v. ii J1 CL L 7/ d nf'~ { 'r~ L / i w y f .i t1 r' 11 y l b J tJ r1 r .L' rl r C ' r L t Y 7 L' c i % ' I L! I~ III 4 M rl 4V Cep M~ U i', 3 ( /7 f y ' n I, i V{ '«y: ^ ° f Y, ~f A 'U .i9 n. 1? V"6 -4 l.r O a; J Ci y 1~ .i~ N 1~ GENERAL CONDITIONS OF AGREEMENT 1. DEFINITIONS OF TERMS .O1 OWNER, CONrItAC' t OIN911. The OWNER, the COM'RACTOR and the ENGINEER are those ment.koned an such in the Agreement. They are treated throughout the Contract Dvcumentr3 as if each wore of the singular number and masculine gender: The ENGINEER shall be understood to be the ENGINEER of the OWNER or his duly authorized representativo, 1,02 COMMUCT DO_CUMENTS, The Contract Documents shall consist of the Notice to Bidders Advartieement for [lids), :Instructions to Bidders$ Special provisions or Special Conditions, Proposal, Contract Agroement, Performance Bond and Payment Dond (when requirod), Special Boodo (when required), Cenoral Conditions of the Agreement, Technical Specifications, Plane, ANN all, modifications f;heroof in- oorporated in any of the documents before the execution of the agrooment, The Contraot Documents are oomplementary) and what is called for by any one shall be as binding As if called for by all. In the evont of a conflict in the Pon- tract Documents, the CONTRACTOR shall, pall the oonfliat to 6e ENGINES IS Oton- tion in writing and he shall decide the conflict in writingg.and the ENGINFI'rft)S decision shall be binding, ],,,ga,.!JV.l3-CONTRACTOR. The term Sub-oontraotor, as v pluyed horsing includes only those having a direct contract with the CONTRACOR•.' JAS UJ W1 1 0'IC . Written notice shall, bo doomdd to have been duly served it 6oliver'ad in parson to the individual or to a member of the firm or to an ofAaor of thn corporation for whom it is intended, or if delivered at or sent t;,, rogiaterod mail to the last business addrosn known to him who gives the notice. ,jtQL„) , Unless othorwi.ne atipuln tod, the CONTRACTOR shall provide and pt4Y for all matorialn, supplieag maohi.nory, equi.pmcnt, toolo, eupor.intandonoa, ln1rX)P inauranoo, and all. water) li.phL, power, fliel, transportation, and other faail- i.tina and services ncooneary for the oxeoution and completion of the work oovorod by the contract documents, Unl.oss otherwive specified, all materials' shall be now and both workmanship and materials shall. be of a good quality. The 0N1'RAC_ TOR ahallg if roquiredg,furnish eati.sfaotory evidence as to the kind and qual- ity of mntoriala. Materials or work described in wordo which so appliod have a well known technical or trado meaning shall bo hold to refer to such raooff- nized standardn. WOI KINUalt, A "Working Day" is defined as any (lay not including Satur- days, Sundays or any legal holidays, in which woat.hor will permit oonotruotion of the principal unite of the work for a pnviod of not less than noven (7) hours between 7:00 a.m. and 6000 p.m. ,L, ZZ. A , A "Calondar Day" is any day of the wook or month, no days being oxoopted, )-5-fit 7 "0 WORK WFEK, The "Work Week" shall consist of a period of coven (7) suovess- ive calendar days to begin and and as Hpooified by the f,ONT1iACTOR, J.&2_SUDSTANTIALLY COMPLETED. By the Corm "Substantially Completed" is meant that, the struoturo or facility has boon made suitable for use and all construc- tion completed except for minor repairs or miscellaneous work, which while in programs will not interfere with the OWNER'S use and occupancy of the structure or faoility. 2. CONTROL OF WORK 2,01 LINES AND- RADEa, Unless otherwise specified, all lines and grades shall be furnished by the ENOINE'ER, Whenever necessary, oonni;ruotion work shall bc: suspended to permit performance of thin work, but such suspension will be as brief as practicable and the CONTRACTOk shall be allowed no extra compensation therefor. The CONTRACTOR shall give the OWNER or the ENOINEdt ample notice of the time and place where line's abd grades 'will 'be handed. All stakes, marks, eta,, shall be oarofully preserved 'by the CONTRACTOR, and in case of careless destrilotion or removal by him or his employees, such stakes, marks, oto., shall be'roplaced at the CONTRACTOR+U ekpense, ~ ENQINEERI~ A D PUT . Unless otherwise specified, it Is mutually agreed between the pa4 t a§,his' Agreomsnt that the ENOINM shall supet-,rise all work included herein. Ile has 'the authority "to'ntop`thn, 14oi4k wlienovrr Auoh stoppage may be necessary to insure the proper oxoaution oJ' tho oontraot. In order to provent delays and 'disputes 'And to disoourrgrn litigation, it is further agreed that the gND1N11M ahal.l in all. canes dotbrmi.riu `the amounts and rluantitios of the several kinds of work which are to be paid for 'under` this contrrWt., }le shall dotormino all quosti:enn in rotation' to amid work 'and the aonst.ruriti.on thoroof, and shall in all Banos doaide ovot,y (1uonti,on which mrxy ari.no ro'lntivo to the execution of this contract oil the part of oni.d CONTRACTOR. Tho I310ME 01)l estimates And fl,ndingb sltall'be the 'conditions 17r00t,dUnt to the right, of the partina horato to arbitratton or to any action oti tho oontraot, and to r+ny right's of the CONTRACPok to rocei.vo any money under this contract; prr,vidod, hown1ver, that should the 1,,NGTN8E1t render any dooinion or give any direction which, in the opinion of oithor party horeto', is not in aeoordano•j with the meaning and intent of this contraot,'either party may file with said ENGINEXH within fifteen (15) days his written objection to the dooinion'or dirootion no rhndered, ant by such action may'ronorve tho right to submit the quostion tjo raised to arbitra- tion at; heroin provided, It is the intent of thin agreemont that thorn shall be no delay in the oxocuti.on of the world thareforo, t,hr, written decision or dirpati.onn of thr 6410TNEIOAt tin rnnrlorad nha7.1 be promptly „arri.ed out, and any claim arini.ng thorofrom shall be thoroafter Adjusted by arbitration as heroin- after provided, The ENGINEER shall, within a roanonriblo time, render and deliver to both the OWNER and the CONTRACTOR a wri.tton dooinion on all olalms of 0-in partite hera- to And on all. questions which may ariso rolativo'to tho oxooution of the work or the intorprstntion of the aont.raot, npooifioati.ons and plans, Should thn 3..5-62 8 I';NGINETM tail to make suoh deaiaton within a reasonable time; an appeal to arbitration may ba taken as if his decision had been rendered Against the party appealing. i,r,tr rlhenovor the words "direoterl", "required", "pormittod", ; I'denig nnted" r "opn- oidered neconnary", "prosoribed", or words of like import are used, it shall 1x1, understood that rho direction, requiremont, permtsmion, or, lor, don3 gnattgji, ts.rt pronr;ripti.on, of tho ENOXNEER is intendod; and simil.arl.ythe worm;'Thppi " - AV's,.?'oaooptabla"t nrtatinfootor " y , or words of dike import sha];l rmap,;gpprovorl by or acooptable. or, sutinfaotory to tho EN01NWR ZARL 0;R1Nr1!Nt)EfJC- AND ZNSM.OTIONt IU t icr a„ reed by tho ~CQt44ACTOIt,;that r thercE~ XNEER %ahalL big ;and -is,,horeby authorized i,to appoi0 r4roro ;ti-rne F"q,,"w sggh, huhordihate pngineera, qupervinorn or inopectoro an the naid,,FjG NF,Elt may,,,doomi,prppar to i:nnpea:t the material furnishod rand tho work dono,:i1r)(1 r, E thy,a) agronment, , and to 'Coe' that the said materi.nl•. is furni shod, nncl naid jrArkl1,aldonol in; aooordanao with the npeoil'iaationn thoroforIi 'Thq CORTIt4prpR , shalrll furnitlh all.;..reanorlablo ;aid and anci otanoo roquirod by the s%A1X)V lirtirts: o ,vest morns„ oupervisora! or inappotors .Cor, tho proper tnupootion and oxam. ina. f , ti,o i'1_ o 'r,• n the but k,;, . -Thai CPN'i'ftAC'COR ,aha7.l rrnge,rct arui atxry thrD:draati,ortg.and .inn ruabions olir,ahy, subordfiiatb engineer.a,r,'nupgvvi.norv or 1.nspooterp rfto nppb6Atbd+.,,whern sudh 41reotiohe: and instruoti.ope, nro;oonsintent wi,ithl the obligations of this Agreementoand the, aopoinpanying planer and ,epooii'i patiQne;•,'i provided, however, should the CONTRACTOR ob,joot to any orclor IV Any eubo,di. natev bnginteriw auperviaon! or inspector; r,the ':CON''fRA(,"rOlt may within mix ( G) nf dbya,,,Mixkd1vP3.tUv+ 'AppbAl,,:to,;th0 WINNER, for hIn deni;niollti i f!f,l iii: fl ZA&i C C I Toltta DU'!'Y ANA SUPgtt7NT1rN1}k; CI'. 1'hc {;UNx'ItA ''1'Olt csha'L} r ivr> }rl►n" jIb'tiMI' Attention tol the &aithlul proaeaut 011 and 00114)10010n of this gnntr4vq a.rid:nhAllr,kebpr,r r. theiwork,.during Ito progrovap a or+n?petont Fiuporintonliop, and any' naoabaaty, a.ueigtant, all, satisfautory to tho EVOUNE;E1t, The a,upc+r~J n t'hndbnt+shall x.©prucsont the CONTRACTOR in his aboorroa and n1'1., dirnot:lpno'givpri hf hirh,sha,ll be aa; binding aFj if gti,ven to.'t;ho CONTRACTOR. fNlQt CU i,l},~ ~,r~ tr,r, }ILv~ s 11, tv wid(w,11,ood 11110 agrood thod, 1,1111 0'()N M f IMAG,rm hnn,. by, aaro!`ul oxaminabi oti, iaLi nflorl Irl rnrln}.t nn i,rr tho n0.1mo. wid looation oz'tho work, the con.formntion of the ground, Orr oharaoLor, quality and uanti,rty o,! the mato'ri.als to he ongountrrrcxt, rho oiiaraatnr• of rrquirl,uitjntr; and I faca1itlea! needed, preliminary to awl ~Iuvi.ng the 'prosecut'ion „f thtl; IKOrk, r , thh.sgane Bali and looaJ ,.a4nditirins, and all othrr mnttovo Hhioti c.an in any way; affnot•tM work undorkthi.c contrnota No verIbEll. agreesnont or otrnvernaLj•or) 4w'l4111sitiY.b11A6ori agbnt or umployee of. the BNOINE1,1Z or the OWNER, r!UhUr. Lsfrr+- !`orq_rnr ifli'#ar. rho oxoout,irsn of thin cority,mot, 13ht1ll, r,ff,act, ar, n0d)-fr.any of , Lhn ,borrrJn 'ni!'; AISI.ifri.tion:l' 1lertsilt, contninod, d l r;IlAliAU'I'I~R a],, }Oft IU~N. Tho cnNTRAcToit (Igroom fo <.,qaoy only or cierty and comout-ant men, akillfu I. In the porformanun of Lho Lypo of work requi,l'erl f undor Li;irr onntraot, to do the work; and agrous that whonever the hNGTNELER shall ind'rsrm:!hiM 1n writing that Any'jman nr meh on the work ar(I, in him oplutlfion,j indompotont4 unfnithful or di:rrordetl,y,; r7uolr mnin or irrc)n €fLeal. *"j = diddhar;indl ftfdm"tM work and shall. not again; trn e;;Iploye{) rrrl 0113 work. w);thovt thd'1}iPIpINEE;tt'il ,ai,ttr3yt''oortmaCit, , ririrr•, wC{rN~l'lflt'.;T01113 j111r1])J:N0,J,- Tho t,ui :Idinit."I r;l,•u"~rLu1~c3,I for hounSrl{; mfrs, or tho oroctiorr of tong,) or nthov form" of protool.lon, will lon pormi.ttod only At F,uoh plaocri aF, 1;110 :sN(l.NhElt hhal t rli.ror;L, nno the rrani.tary rnrnli.tionn )_5.62 9 of the grounds i.n or about such stru(,,turos shall at all times bo maintained in a mannor satInfactory to tha ENGINEER, Z,-08 SANITATION. Necessary sanitary oonvoni,onucs for the uea of labororr, on the work, properly socluded from public observation, shall h<) oonstruoted and maintained by the CONTRACTOR in such manner And at such poi.ntn as shall be approved by the ENGINEER, and their Use shall ho strictly enforced. 2,09 SHOP DRAWINGS. The CONTRACTOR shall submit to the SNOINEER, with such promptness as to cause no dolay in his own work or in that of-any other Con- tractor, four oopins, unless otherwiao specified, of all shop and/or setting drawings and nohodulos roquired for the work of the variottn trades, and the ENGINEER shall pass upon thorn with reasonable promptnong, ;caking desired oor- rectionn, The CONTRACTOR shall make any ocrrnoti.ons roquirod by the ENGINEER, file with him two corrected oopien and furnish such' other oopios as may be needed. The ENGINEER'S approval ofsuch drawings or schedules shall not relieve the CONTRACTOR from responsibility for deviations from drawings or epeoifioa tions, unless he Me in writing called the ENGINEEIVS attention to such devi.a-. tions at the time of submission, nor shall it relieve him from responsibility for errors of any sort in shop drawings or nohedules.= 2..10 MELTkiINARX APMOVAL, The ENGINEER shall not have the power to waive the obligations; of this contract for the furnishing by the COEPI'RACTOR of good matorial,, and of his porformint, good work as horoin desoribod, all in full acoordartoo with the plar;s and specifications. No friluro or omission of the ENGINEUt to condomn any defectivo work or material shall release the CONTRACTOR from tho oblitationn to tit, onoo tear out, romove'and properly voplaoo the same at any limo prior to final tioooptanoo upch the discovery of said defective work or material; provided, however, that tho ENGINEER shall, upon request of tho CONCRAC'd'Oft, inspoot and accept, qualify, or rojoct any matorial furnished, and in wont tho mttnvlal has boon onoo noooptod by the ENGINEER, ouoh aooopw tanoc nhall bo binding on Ltto OWNER, unlona it can be clearly shown that euoh material d'urninhud dons not mool, they npooi.ficationn for thin work. Any quostionod work may bo ordored taken up or removnd for ro-oxomination, by Lhe ENOINE'.ER', prior to final aaoopthnoot and If found not in aocordance with the specifications for said work,' all. expense, of removi,ngs ro-examination anti roplacoment shall. be borno by the CONTRACTOR, otherwise the oxpsnsn thus in- ourrod shall be allowed a€; EXTRA WOR,K,`alxd shall be paid for by the OWNERt pro- vided that, whero Inspection or approval is npooifioally required by the speoi- f'i:oationr prior Lo Ix)rformanao of oortai.n work, should the CONTRACrOlt proceed with ouch work without roquost,i.ng prior tnapeot,i.nn or approval., ho nhall. bear all exp©nso of taking up, romovi.ng, and replacing thin work if no directod by the ENO6NE;'ER. ~ 4 Ud:I'E,';T?~ ANU 't'HEIIt (tEMLUIE5, It is further agreod that if the work or any part thereol', or any material brought on the sito of the work for use in the work or nol.uotod for the game, shall to doomed by the ENGINEER an unaui.t- able or not in conformity with the spooifioatLonm the CONTRACTOR shall, after roonipt of writton notion thoroof from tho I;NGTNENR, forthwith romove such 3-5-62 10 material and rebuild or otherwise romedy 311011 work so that it shall be in full accordance with this contract. 2,,,1,E C1IANOE9 AND AJ,TTRA''IQ& The CONTRACTOR furthor agrees that the OWNER may make such changes and alterations as the OWNER may see fit, in the line, grado, form, dimensions, plans, or materials for the work herein contemplated, or any part thereof, either before or after the beginning of the construction, without affecting the validity of this contract and the accompanying perform- anoe and payment bonds, If such changes or alterations diminish the quantity of the work to be dono, they shall not constitute the basis for a claim for damages, or anticipated profits on the work that may be dispensed with, oxcopt as providod for unit price items under Section 5, "Measurement and Payment". If the amount of work is increased, and the work can fairly be classified under the speoi£ioatione, such increase shall be paid for according to the quantity actually done and a,~s the unit prioo, if any, egtablishod for ouch work under this contract, except as provided Tor unit' price itoms under Section 5P "Measurorxint and Pay- ment"1 otherwise, such additional work shall be paid for an providad under Extra Workb In case the OWNER shall make such changes or alterations as make useless any work Already done or material already furnished or used in said work, then the OWNER shall recompense tho CONTRACTOR for any material or labor no usod, And for any actual lops oooasionad by such change, due to actual oxpensen incurrod in preparation for the work ns origi.nnlly'planned. 2,1,1.3 R1011T 014' F;NOlffiER TO h1ODIl 1, 1110aj AND F„ ~UIPMELIT, Tf at any time the methods or oquipmont uued by the CONTAMTOR are found to bo inado-quato to secure the quality of work or the rata of progrons required under thi.;1 con- tract, the 10101'I6'ER may ordor the CONTRACTOR in writing, !,o i.noroaso their safety or improve Mir oharaotor and offiaioncy, grid the CONTRACTOR shall comply with nuch ordor. J'f`at any time the wot•ki.ng t'oroe of the CONTRACTOR in inadequato for mocuring the progress herein epocifind, the CONTRACTOR shall:, if so ordered in writing, increase his foroo or equipment, or both as may be roquirod by the N'NOlNLER. 3. UENERAL OBLI0ATION.7 AND HN,PON,51111JJTIF;fI 0 EGPIN 01' PLAN) AND SPECIFICATIONS ACCE`38I8LC. The ENCIINEMt shall furnish the CONTRAC'1OR-with an adequate and roasonable number of aodios of all plans and spr.ci.fl.oati.onn without rxponno to him, and tho CONTRACTOR shall koop one copy of the same constantly nocessiblo on the work, with the latest revisions noted thuroon. 1,02 OWNERSHIP 010' DRAwIN014 All drawings, npodi,ficA' font; and copied there.. of furnished by the BNOINEER shall. not be rounod on ether work, and, With the exception of the signed contract noto, are to be roturned to him on roquost, at the completion of the work. All modolo nre tho property of tho OWNER. 3-5-G2 11 a.D ADEQUAC O DESIGN, It is understood that, the OWNER behoves he has ompl.oyod compei.ent; on;;ineerfs and doeignero. It, is, therefore, agreed that the OWNI'aI shall. bo responsible for tho adequacy of the dosign, suffi.eionoy of the Contract Documents, the rsafoty of the structure and the practicability of tho operations of the completed projoot; provided the CONTRACTOR has complied with the requirements of tho nai.d Contract Dooumonte, all approved modifies- tions thereof, and additions and alterations thereto approved in writing by the OWNER. The burden of proof of au,Jh complian.a'shall be upon the CONTRAC- TOR to show that he ling complied with tho said requirements of the Contract Documents, approved modifioations thereof and all approved additions and alterations thereto. I(E011T OF ENTI The OWNER roservon the right to enter the property or location on which the works herein contracted for are to be constructed or installed, by such agent or agents as he may oleot. 3.05 _ COLLATERAL CO T11 C'l'S. The OWNER agrees to provide by anparato eontraot or otherwise, all labor and material essential to the oomploti.on.of the work specifically excluded from this contract, in such manner afs not to delay the progress of-the , work,: or damage said CONTRACTORS oxaept where such delays are speoifioally mentioned elsewhere in the Contract Documents, 9.OG ) 1iCRM;P ].P,S A& .CM 9UONS. It in further agreed that it is the ihtont of this oontract that all. work must be done and all material must be furnished in aooordanoo with tic gonorally accepted praetico, no determined by the ENOI.. NN'IR, and in the ovont of any disoropanoi.no botwoon the separato oontraot docu. monty, spooifiorations or drawings, the BNO1NE,ER shall define which is intended to apply to tho work. :}.O'I. k',QUIPMFN'T'., MATERIAW AND CONSTRUCTION..Pl.,AK Tho CONVIACTou shall pro. vido all tools, oqui.~smont, mnohinory, mstorinl€s, and constriction plant and raoil.ltios nocossary In tho prosecution and complotion of thn contract, oxcopt as,athet-;+'iee rspooifi.cal.l.y not forth to be provided by the OYsIR. Tho CON'I11AC. TOR shall, Tx~ respongibl.o. ['or. tho oavoo preservation, conservation, and pro- tootion of all materials, supplies, maohinory,,equipmont, tocle, apparatus, aoeessorios, facilities, all moans of conotructi.on, and any and all parto of the work, whothor tho CONTRACTOR Isar boon paid, partially paid, or not paid for such work, until the ontiro work in oompletod and accepted. 310 i'tOlEgU AGA ST ACCIDENT 'I'0__LMPLOYEE3 AND THE PUBLIC, The CONTRACT. TOR shall take out and procure a policy or, policies of workmen's compensa.. Lion insurance with an i.nsuranoo compAny 1.1cennod to transact business in the ~)tata of 'T'exas, Witch pol.i,cy shall, comply with the Workman's Compensation Law of the fltato of Texas. Tho COMPACTOR shall at all, times exercise reasonable prooautions for the safety of employees and othore on or near the work and shall comply with at), applicable provisions of Frrtoral, Unto and Munioipal sal'oty laws and building and construclAon codes. All maohi.nery and equip,. f^,ont and other phyai.oal, hazardo nha.ll, be guarded in aoourdanoo ?tith the "Manual of Aooident Prevention in (ions fxuot ton" of the Annooiated General Contractors of Amorion, except whore Incompatible with Federal., State, or Municipal laws or roguleti,ons. The CONTRACTOR shall provide ouoh machinery ~puards, safe walkways, ladders, bvidunn, gangplanks, and other safety devices as may be required an requisite to tho prevention of aocidentn. The CONTRACTOR 3°5-62 12 and his Sureties shall .indemnify and ,lava harmless the OWNER and all his offioors, ngents, and employees from all suit actinns or claims of any oharaotor, nnme and deiroription brought for or on nacount of any injuries or damages reocived or nust+tinod by nny person or pornone or property, on acoount of any negligent, act or fault of CONTRACTOR, his agents or employees, in the execution of said contraatl or on nocount of the failure of the CON, TRACTOR to provide nnooseary barriondos, warning lighl,s or signs; and will be required to pny any Ijudgmont, with nontr,, which may be obtained against the OWNER growing out of_auoh injury or damage. 309 P1✓RN'OIttMNCJ, pND I'AXMJ4N'f f3„NDS. TL i.ts further agreed by the parties to this Contraot that the CONTRACTOR will oxeouto soparato performnnoo and payment bonds, each in the num of one hundred (1.000 percent of the total contract price, on stnndnrd forms for this purposo, guftrantoeing faithful performanoo of the work and the fulfillmont of any gunrontoes required, and further guaranteoing payment to All'porsons supplying labor and materials or furnishing him any oquj.pment in the exooution of the Contraot and It in agreed that this.Contraot shall not be in ol'foot until. nuch porformanou and payment bonds are furnished arui.np;)roved by the OWNER. Unless otherwise approved In writing by the OWNER, the tsuroty company under- writing the bonds shall be acceptable according to the latest list of com- pani,oe holding ,oertifi,oatos;of authority from the 5eorotary of the Treanury of,the Uni_tori Stators. As herein provided for 166 rr", the performanoe bond shalt remain in ofa'eetr for a period of ono year aftor the date of the Certificate of Aoaeptanoo by bho OWNEM. The, cost of the promi,um for the par.formanee and payment bond,-, shall. be included in the CONTRACTOR'S proposal.. 3;10 LO;i~T;S hjtOM NATURAL CA , r All. loss or damage, to the CONTRACTOR ari.ning out of the nature of I;ho work to be done, or from tho aotiorl of the elements, or from any unforseon ciroumtstanoc:s in tho prosecution of the same, or from unusual obntruotionn or, difficul.tien whiah may be oneounterad in the prosoaution of the work, shall. b+ sustrdnorl nttd borne by tho CONTRA^TOR at, his own ocnt and oxp?nsr „-.ll I'RC'rl1C':~ (O-N 0J''. ADJOINl NO_ PI 9I' IXTY. The snM COIL' MCTOR shall take proper moans to Tsratoct the ad,jaoont or adjoining property or properti.os in any way onaounternd, whioh might be injured or seriously siffectod by any process of oonstruotion to be undertaken under this Agreemont, from any damngo,or Injury by reason of said process of oonstruotion; and he shall be l.iablo for tiny and All olaimn for suah damngn on account of his fatluro to fully protroot all adjoining property. The r;ONPRACTOR ngrods to indemnify, navo and hold harmless the OWNER ngninet any alaian or claims for damagoe due to any Injury to any ad,jaoont or nJjoini.ng property, nri.s. ing,or growing out of tho performance of the Contraot; but any suah indem- nity shall not apply to any olaim of any kind arini.ng out of the existence or charactor of the work. : J .Q~1 ASA N C LVAA I l' (~U , j I1 v 11 . C -!GO 'Pi},,~r"~&j30 i 1 ' ~'~~t> N ( . f' kNlfslllJltF' Of~,lfA I NrltY, 1' M D 5+11,14, TL tIh~TItACT rt~taf,,r~oos that he will indomnify rind ynvo tho OWNER harmless lr'om all olaimn growing 3„5-62 13 out of the lawful domande cf nub..oorrtractors, laborers, workrnon, mechanioa, inntorialmon, and furnishors of machinery and parts thereof, orluipmon , power tools, And All, nuppli,on, including commissary, ineurrod in the furtherance of the porformanoo of Lhin onntraot. When so doeired by the OWN11,t, the CONTRACTOR shall furnish natinfactory evidence that all obligations of the, nature heroinabove designated have boon paid, discharged or waived. If the CONTRACTOR fails so to do, then the OWNER may at the option of the CONTRACTOR either Fay directly any unpaid bills, of which tile OWNER han written notioe, or withhold from the CONTRAC_ TORI5 unpaid compensation a sum of money deemed reasonably nuffi.oiont'to liquidate any anti Alt such lawful claims until satisfactory evidence is furnished that all liabil.iti:+s have boon fully di.nchargod; whereupon payments to the CONTRACTOR shall be rosumod in ful.l., in noeordanoo with the tsrms of this oontrnet., but 'n no ovont` shall the provisions of this sentence 1x:, oorrntruod to imporic any obligation upon the OWNER by either the CONTRACTOR or hin `luroty, WIltOTECTION AUAINST ROYALj1L'I OR PATi 9rt'D TNVGNTTO I'M (;ONIRACTOR shall pay all royalties And license feet;, And shall provide for tho uae of any doeign, device, matorinl, or prooes$ covered by lottors patent or'oopyright by suita,blo legal agreement with the patentee or OWNER. The CONTRACTOR'i3hall. defend all suits or claims for infringement of any patent or copyright rights and shall indertinify And save' the OWNER harhiloslH from any 1.6ss on adoount'thdreof, exonpt that the OWNER shall defend all 'ouch suits And olaimd nhd shal.l:'be roeponsibld for 0.1. much loss when A pArticulAr, dnsign, dovioe, matorialr Or prooass, or'tho product cl a partioular manur ow?oir or mnnufabturers i.e OP00i.i'iod or 'roquired by the OWNIIRI pro'vidod,'howevor, iP ohoico of nltornAtr. dogign, device; material, or prooosu Lu allowed to the CONTRACTORt Ilion CON'MACTOR shall indemnify and save OWNER hnrml.ons from any Lose on Account thoreol', Tf the rnatori.a]. or Pro.. ooss speotflod roquirod by Lho OWNER is an infringement, Lhc CONTRACT01 shall be responiblofor such lon!j unlens ho promptly giver, 8ueh information to the OWNSR, 3 !y' 1,AW, ANI) ORD~NA 'li', The CONTRAC't'01t Filvil.l. at al Limon ohnerve.and comply with all Vadernl., State And 100111 1nwr,, n1-din moon and regulation, w,tioh 1.11 Any mannor affeot the rsontrnot, or the worlt, and nhAl.l indomnify And nnvo harrnlorsn the O'AMER ai;alnrrt, any claim artning from the violnLion of any suoh lawn, ordLn- anooo, and regulations, whoLhor by Lho CONTRACTOR or his omployeon, exoopt where such violatiorrs aro oalled fot, by the provisions or tho Contvaot Documonto. If tho CONTRACTOR ebiserveq that the plans and npeeifiontions are at variance there- with, he Shull promptly notii'y the FNOINRER to writing, and any norjossary ohangos rrhall be ad,justod an provided in the contract for'chang,Eo In the work. TI' the CON'T'RACTOR purfotlmA Ally work knowing it to be Contrary to t4uoh' lawn, ordinanomn, rules And rt l;ulationa, and without altoh notion: to tho ENOINEIPIi, ho shall boar all Monts arising 'thorefrom. Tfi dnsu the -Ol.JNF ' 1t i.s' a txidy Opel ltl.6 anrT corpcrAtn, Ldra law from which it dovivos its powors, insofar an the name rogulaLes the ob,jeote for which, or tho inannor in whioh, or the oonditi:ons undar which tha OWNER mby erthr into contract, shall bo nontvollln~t And shall be considered as part of this oontraot, to the same offcrt an though ombodi.i,d heroln 3• -5 ISTGNMPN'P AND fzU13ri11"I'I Q. Tho CONTRACTOR furLhor a(,roon that lie will. retain personal control And will give his por'nonal attention to the 2izl fillrmjnt of thin contract And that he will not ans.ign by Power of Attorney, or ot;horwino, 3-5-G2 l~F or sublet said contract without rho writLen consent of tho OWNER and that no )artor foaturc of the worlt will tie sublo 1, to anyono 0h0inti ongblo to the I1NOINEM or the OWNER. Tho CONTRACTOR furthor ngrr;r,+j that the nubl.etting of any portion or foaturo of tho work, or niniorirtls rr!ejuirUd ;.n tho horformanoo of this contract, ahal.l. not rc.l.iovo tiro CC.N'I'RACTOR From his full obligations to the OWNER, an providori by thin Agroorriont. at 1.6 CON'17t,ACTOR'S AND _SUM-CONT'RACTOR'S INSURANCE. 'Phi CONTRACTOR 'shall. not commonco work under this oontraot until ho has obtai.nnet all the Insurance >:oquired under the following sub-paragraphs and ;duct: insurance has boon approved by the OWNER, nor shall, ttto CONTRACTOR allc;, any subcontractor to commenoo work on a sub-oontrac't until'nuoh nub-:contractor has obtained com- plete insurance coverage an required for the CONTRACTOR. 941G1 -ONPENSATION INSURANCE. Thy CONTRACTOR shall proouro and shall main- tain during the life of this contract Workmon's Compronnation Inouranoe for all of his employees to be engaged in work on th6 project under this oontraot and, in oano of any suoh work sublet, the CONTRACTOR shall, roquiro the sub-nontraotor similar'ly'to provide Workmen's Compensation Insurance for all of the latter's employees to be ongagod in Aue}I work, unless olloh ompToyoos are covered by the protfidtian afforded by the Contraotor,fs Workmen's Cornponsation ~nsuranoe. In oneo any olass of employees angagud'i,t htlarclautd work on the projeot under this oontraot Is not,protocted under the Workmen's Componazition Statute, the CONTRACTOR' shall provi;do artd shall "onu so oaoh nub-oontrantor to provide ade- quite n,mployorla Obnoral. Liability Insurnnou for the: protection of navh of hits omployoes not othorw.i.so protectod. 3 lug 'COI C'i'O t iJflL1 C 5.1.-AX1,ImY AND?ItOP ER'1'Y F)A= 1 N t 1 `G . , Tho CONTRACTOR piall pr'ooure and shallmainta.n during the lifo of this contraut Contraoter'rt Public Liability Insuranoe in an Amount not tons than $1.009000,00 for iii,juri.os, inoluding accidental doath, to any ono poroon and subject t,o tho' samo UMIL for each porsoh, III tin amount not Ions than 11)O6,OOO,OO on account of uno aocidont, and ConLraoLOI'18 Property D.vnt,;.. Ai„vranoo lit an amount of riot l.etis than $%000.00 on aecounL of oa(: aoeidoW ,u,', (',000000,00 aggro( ate, The CONTRACTOR shall also furnish Contractur's P rotect4ve Liability Thour. .'tnco, as soparato polioios or as a part of ono of the abovo menttonori poll oi.os or by endorsotrront, theroto, In tho amount root forth for public ).ability and property damago. 1.1 2. AUT ~INaSli_ /~NGT. . ` I71> Y 7 JU1tY.~E?) 1'1 f~, t rY Ali , The CM TRACTO shat., procuro and maintain, during tho 1:111, of this Guntraol,, Auto- mobile Insurance in an amount not loss than $1,00,000,00 for in,jurios, inol.uillne, noaidontal. death, to tiny one portion anti subject to the flame 11mU for, oaoll porson, ,in amount not loso than $300,000.00 on account, of uric: aoci-- dent, and autcmobilo property damngo insuranco in an Frimbunt not, le.-w 1,11nn $50,000,00 1 " ' 'j~ O1+' U1~AN ' : DPS;CJ '1 1t0. The Tnrtrranoc rn~~ui red trader - IL d n ovo paral;rnphg tlhn.1 proviclu arioquato protot~i,inn ['or rho CONTRAC'1'Olt and his ,oUL-o6rtitraotbrc~, roopeotivoly, against eIumvgo olaima whiah may arino frorl 3-5-62 15 opernL:i.ons under this contraoL, whot.her such opera Lions be by the insured or by nnyono directly or indirectly employed by him. Tnsurance al n shaall be. provided against, spocial lvazard,, if any, as may lx: sot, forth in the .3peoisl "onditions e)' ')I)(' Provisions, or elsewhr.re in Lhose ContraeL Docwva rit,,;. i"nr contraots involving work Lo porformod within the corporrite limits of any municipality and for contracts involving pipe line construction (water, sewer, or oWwr), the CONTRACTORt shall, furnish insurance ,is separate pol.ieios or by additional. ondorsomonL to one of the above, mentioned policies, and in the amount as sot forth for public liability and property damage, the following insurance: (a) Blasting, prior to any blasting being done,. (b) Collapse of buildings or structures adjacent to rir.(!rrv,.ition O .J.' excavations aro to lie performed adjacent to oauno), (c) Damage to underground utlliti:os. 3-o-4.11kO~O OI, CARI T CE OI? 7 ISURAtJCC. The CONTRACTOR shall furnish the OWNER With satisfactory proof of coverage by insurance required In these Contract. Doeu- moats in amounts and by carriers oatisfaotory t,o the OWNER. Proof o!.' carriage of insurance by nub-contractnt's shat 1, also be furnished. 1.17 CIVA1t11WEE. The C01177A TOR shall, guarantee the work against failure or malfunction due to defective materials or workmanship for a period of one year from Lhc dato or the written t,ortifioate of Aeceptanco of tho WIER, Where the `MITRACTOR in required 0 procure and furnish articles manufactured by others, Lhe standard warranty, if any, of tho manufacturer thoroof rshrl,l be doliverod to ()',dWN by CONTRAO'l'OR in form to inure to OWNlI't benefit. This gurwantoe will not apply to defects of any matori.als or equipment furnislied by the OWNER to the CONTRACTOR for installation- however, the guaranLce will apply Lo any defcots in workmanship in the instal,lition by the CONTRACTOR of' such ma torial s or oquipmont s When ,ie.t'oeti.vo material and workmannhi_p aro dlscovn.rc:d, all required repairs ~;hi,i.l bs~ m;iol! I~,y the (.'MjTIiAC'rm at hit; own expense. Such rorairs shall be initiated wi.Lhin five (5) day:; after written notico of ,sue}, rlefectshas boon givon by Lhr OWNER and the work or the ropairri shall prooer,d with dllspal,ch no Lhat the repair, wi.1.1. ho oomhlol.oi within a rensonablo lon~th of time. Should the CONTRACTOR fail. to initi.aLo Lho repairs wiLhi.n five (j) clays after written ncAloo or 1311ould ho fail Lo oomptnto Lhe repairs within a reasonab c time, the 01W11?R may make the nocoss ary rep,airg and. charge Lhe CONTRACTOR with all costs i ncuri on therti£or. As a' part of this guarantee, the CONT'RAC'TOR+S Performance Pond shall remain in of oft for n period of ono year after the date oi' written acceptance by the O vA!BR . ajJ4 W CT RA'IF;St The MIER in accordance vilth statutory requi.roments has cloton6n,od:the general `provail.ing rates of wages as applicable to tht, projeot, marl the CONTRACTOR shall pay not lees than the rates of wages so determined. A copy of the nchedulo of nrevrviling wato raLos as ohtabl.i.sthed by the OWNER is inoludod an a part of these Contract Documents. 3-5-62 16 4. PROSECUTION AND PROGRESS 4.01 ...TIME AND ORDER OF COMPLETION. It is the meaning and intent of this contract, unless otherwise heroin specifically provided, that the CONTRACTOR shall prosecute his work at such times and seasons, in such order of preee- donoo, and in such manner as shall be most conducive to economy of construe- tion; provided, howovor, that the order and the time of prosecution shall be such that the work shall be substantially completed an a whole and in part, in accordance with this contrast, the plans and specifications, and within the time of completion designated in the Proposal.; provided, also, that, when the OWNER is having other work done, either by contract or by his own force, the ENGINEER may direct the time and manner of constructing the work done under this oontraot, so that conflict will be avoided and the construction of the various works being done for the OWNER shall be harmonized. The CONTRACTOR shall submit, at such times as may reasonably be requested by the ENGINEER, schedules which shall show the order in which the CONTRACTOR proposes to carry on the work, with dates at which the CONTRACTOR will start the several parts of the work, and ee'timated dates of completion of the sev- eral parts. Within seven (7) days after the end of each calendar month, the CONTRACTOR shall report in writing to the ENGINEER any day claims(] to be unsuitable for working. Within seven days theroa.fter, the ENGIMM shall agree or dis- agree in writing as to whether the time claimed as not suitable for working shall be no recognized and the ENGINEER'S decision shal.l;be ,final and binding. ?.i 0?._ EXTENSION OF TIME. Should the CONTRACTOR be delayed in the completion of the work by any act or neglect of the OWNER or ENGINEER, or of any employ. con of either, or by other contractors employed by the OWNER, or. by, changes -ordered in the work, or by strikes, lockouts, fires, and unusual delays by common oarriers, or unavoidable cause or causes beyond the CONTRACT024S corn. trot, or by any cause whi.oh the ENGINEER shall decide justifies the delay, thou an extension of time shall. be a.1l.owed for completing the work, nuffi.. eient to eomponsate for the delay, the amount, of tho extension to be deter- mined by the 1?NGINF alt; provided, howovor, that the COI IWACTOR shall ,ive the ENGINEER notice in writing of the cause of ;such delay within ten (1.0) days from inception of such delay. 4,43 HINDRANCES AND DJJAYS. No claims shall be made by the CONTRACTOR for damages resulting from hindrances or delays from any cause (except where the work is stopped by order of the OWNER) during the progress of any per, tion of the workembraced in this contract, In oaso said work shall be stopped by the act of the OWNER, then such expense as in the judgment of the ENGINEER is caused by such stoppage of said work shall be paid by the OMN'? to the CONTRACTOR. 4.04 U jUIDe,TED.DAMA GE9. The CONTRACTOR agrees that time is of the essence of this contract, and that for each day of delay beyond the number of days herein agreed upon for the completion of the work heroin specified and con. traoted for (after due allowance for such extension of time as Is provided 3-5-62 17 for undo Extension of Time hereinabove), the OWNER may withhold permanently from the CONTRACTOR13 total compensation, the amount per clay given in the following schedule, not as a penrlty, but as liquidated damages and for Added expense for engineering suporvini.on, etc. in connection with the pro,jeats Amount Amount of Liquidated Of Q:52 reef Damages Per Day j; 50,000 or less $ 50 50,001 to 100;000 75 100001 to 500,000 100 5001001 to 110009000 150 1.1000,001 to 2,0000000 200 Over 2,0001000 300 i MEASURMIM AND PAYMENT 5,01 2UANT11JE S AND MEASUREMENTS. No extra or customary meanurementa of any kind will be allowed, but the actual measured and/or computed length, area, solid contents, number, and weight only shall be considered, unless otherwise specifically provided.' 502 ESTIMATU VNTIr T 13 . This agreemont, including the npsoifionLions, plans and estimate, is intended to show clearly all work to be done and material to be furniahed hereunder. 'these the estimated quantities are shown for the various class n of work to be doho and material to be furnished under this oontraot, they are approximate and sin to be used only As a basis for estimating tho probable coot of the work and for comparing the proposals offered for the work. It is undorgtood And agreed thht the actual amount of work to be done and material to be furnished under this contract may differ somewhat from these estimates, and that where the basis for payment under this oontraot is the unit price method, payment Sall br for the actual amount of nuoh work done and the material fury ni.shod. Whore payment is based on the unit pvioe method, the CONTRACTOR agrees that he will make no claim for damages, anticipated penfits or otherwise on account of any difforonous which may be round between the quantities of work actually Bono, the material. actually furnished under this contract and the estimated quantities contemplated and contained in the proposal) provided, however, that in case the actual quantity of any itom should become as much as 25% more than, o.r, 256 leas than the estimated or oontemplatod quantity for aueh items, then either party to this Agreement, upon demand, shall be ontitlod to a revised consideration upon the portion of the work above or below 251 of the estimated quantity. Any revised consideration is to be determined by agreement between the parties, otherwise by the terms of this Agreement, ao provided under "Extra Work". 5102 PUTCL" Of' WORK. In oonsideration of the furnishing of all the necessary labor] equipment and material, and this oomplotion of all work by the COMACs TOR, and on the complotior of all work and of the delivery of all material 3-5-G2 1~3 embraced in this contract in full conformity with tho specifications and stilou- lations herein contained, the OWNER agrees to pay tho CONTRACTOR the prices set forth in the proposal hereto attached, which has loon mAde'a part of this contract. Tho CONTRACTOR hereby agroos to rocoivo nuoh prices in full for furnishing; all material, and all labor required for I,he aforesaid work, also for all expense incurred by him, and for well and truly performing the same and the whole thereof In the manner and aooording to this Agreoment, the attached speoifiont,.ons and requirements of the ENGINEER. 5o04 PARTIAL PAYMENTS. On or before the 10th day of each month the ENGINEER shall prepare a statement showing as completely as praoticayle the total value of the work done by the CONTRACTOR up to and Including the last day of the pre- coeding month; said statement shall also include tho value of all sound mater- ials deliveredon the alto of the work that are to bo fabricated into the work. The OWNER shall then pay the CONTRACTOR on or before the '15th day of the Current month the total. amount of the ENOINEERIS'statoment, leas 10 percent of the amount thornof, which 10 peroont shall be retained until final payment, and further loss all previous' payments and all further sums' that may be~re~ tainod'by the OWNMli under the terms of thia Agreement, It is'underetood, how- ever, that in ease the whole work be near to completion and some unexpeoted -I'' and unusual delay occurs due to no fault or neglect on the part of the CONTRAC- TOR, the OWNER may - upon writton recommendation or the ENGINEER - pay a rea.son- abl.e and equi.tablo portion ;f the retained percentage to the CONTRACTOR; or the CONTRACTOR, at the OWNELIS option, maybe relieved of the`obligatioh to fully complete the work and, thereupon, the CONTRACTOR '&iall ro,,a 'vo payment of the balance due him under the contract subject only to the conditions stated under 1111inal Payment". 5.0 5 _USE OF COM111- ;TED PORTTONS, rho OWNER shall have the right to take possession of and use any completed or partially completed portions of the work, notwithstanding., the time for completing the entire work of such per- tionn, may not have oxpirod, but such taking i;ossensi.on and use shall. not be'doemod an aoceptanoo of any work riot oomplotod`in accordance with the Contract Documents. Tf such prior use incroasonthe cost of or delays the work, the, CONTRACTOR shall, be entitled to such oxtra compensation, or exten- sion of time, or both, as the EMYINESR may dotormi.ne. The CONTRACTOR shall notify the ENGINEER when the contract ie "substantially completed" and the ENGINEER shall forthwith advise the CONTRACTOR in writing of any work undone which in the ENOINEERfS ,judgmont shall be done, if any, Ili order to subntunti:ally complete the work. The "t;ubstantial completion" of the struoture or facility shall not excuso the CONTRACTOR from performing all of the work undertakon, whether cf a minor or ma,jornature, and thereby completing the structure or facility in adoordance with the Contnot Doou- monts. 5,66 FINAL COMPLETION `AID ACCEPTANCE. Within tan (10) daye alter the CON. TRACTOR has given the OI -written notice thAt the°work hAe'been com-, pleted, the ENGINEER and the OWNER shall innpect the work and within said time, if the work be found to be, completed in accordance with the Contract 3-5-62 19 Dooumonts, the ENGINEER shall issue to the OWNER and the CONTRACTOR ),is Certifioate of Completion, and thereupon it shall be the duty of the OWNER within ton (10) days to issue a Certificate of Acceptance of thr: work to the CONTRACTOR. S FINAL PAYMENT. Upon the issuance of the Certificate of ':ompleti.on, ; Il ENGINM''R shall proceed to make final measuromante and preparo final, state"iont of the value of all work performed and materials furnished undvr, the terms of the Agreement and within 25 days shall cortify samo to tbr~ II,;NI;It, who n 1d. later than 35 days after the date of the Certificate of Compl.ot+7n ahall pad 1,0 the CONTRACTOR the balance due the CONTRAC'T'OR under the term; of thin Agroomont, provided he has fully performed his contractual obl.igat.lons under the terms Of this contract; and said payment shall become due in any event upon snip per. formanoe by the CONTRACTOR. Neither the Corti. ficato z~t' Aeor;pt,,noo not, the, final payment, nor any provision in the Contract DooumrirlLn, shad) ra'1'.,!vo tho CONTRACTOR of the obligation for fult'i.1lment of any warranty whioh may iN required in the Special Conditions of the Speoi..ficution: NTS .CTULIF - The OWNER may, on account of skib:I(;cluont t'v li^eovorod evidence, withhold or nullify the whole or pr3rt of any cort.Ifit~r:r,,- extent as may be noaersary to protoot Klmse'rr frnrr: loss do of; (a) Defective work not rcrnodic• , (b) Claims filed or ruarsonrih, ovi{tcnno indioal,inrr, filing of clai.m,j. (e) Failure of the (:(MTl?A, .`01{ t„ VlUko tub-contractor;i or inator,ki) or lahor. (d) Damaeo Lo anothor !onl,rniil.or, When thtl above grounds r,rcj romovnrl_, or Lhe A)N'J1cA(:Tot t iurct,y Hond satisfactory to this OWNER, whi.oh iai.7.1 raroLvol, tho 11"VIE11 ill arnut'. triJ.hhii.d, payment ';iIrtII be rnrvJf, fnr 1tnB)IIt I!:~ wi(A):tIhI h(!C;klI;o „f L1„:~4( ;l_ )F; I A '_a.' 7',(1;.!ilnuJra QIr- r.1Yl11i;lE. ftril_ t,) !'OR lIf h, Snip imili],I :II t,.; ,'.ii'L t.lJt l,ii1, I,tt J,.,Irlln t, '.1!!+..li l11 ';hou' i.Et) LEIr:EN!-;F1? i';r ter E1 (.<<LtnktI, r,h Ztt h7 hr~.rv?.': thr ilrr E l }Ir~~1 i u tYio 11 I,I~ii I,i rm i.., t,he ettln shown its due by such statement, internt,t thereon at the rate of si,x (fi;o) percent per annum, unless otherwise specif..ed, from datn due, tis provided under "Parti.al. Payments" and "Final Payments", until fully pain, which shall fully liquidate any injury to the CONTRACTOR growing. out of such delay in payment,klut the right is expressly reserved to the CONTRACTOR in the event payments be not promptly made, as 1eovided under "Partial Payments", at arty time thereafter to treat the oontraA+, as abandoned by the OWNER and reoovor aompensation, tis provided under "Abandonment of Contract", unless such payments are witidiel.d in dooordance with the provisions of "Payments Wtithheld". d, EXTRA "WORK 'AND CLAIMS' 6.01 EXTRA )CRK, it is agreed that the CONTRACTOR shall porform all Extra 3.5-b2 20 Work under the direction of the ENGINEER when prosented with a written Work Order signed by the ENOINEERt subject, however, to the right of the CONTItAC- TOR to require a written confirmation of such Extra Work Order by the OWNER. [t is also agreed that the compensation to be paid the CONTRACTCR for per- forming said Extra Work shall be determined by one or more of the following methods: Method (A) - By agreed unit prices; or Method (13) _ By agreed lump sum; or Method (C) - If neither Method (A) nor Method (13) be agreed' upon before the Extra Work is commenced, then the CONTRACTOR shall be paid the "actual f"iold cost" of the work, plus fifteen (15%) percent. In the event said Extra, Work be performed and paid for, under Method ,(C),; then the provisions of this paragraph shall apply; and the "actual field cost" is hereby defined to include the oost to the WON AC,'IOit of al 'workiren,, such as foremen, timekeepers, mechanics and laborers, and materials,suppliee, teams, trucks, and rentals on machinery and equipment, for the time actually employed or used on such Extra Works plus actual transportation charges necessarily incurred, together with all power, fuel, lubricants, water, and similar operating expensos, also all necessary incidental expensoo incurred directly on account of such Extra Work, inoxudinp. Sooial SeeurD y, Old Age Boncfits, and other payroll taxos, and a rateabl.o proportion of premiums on Performance and Payment Bonds,` and Maintenance Bonds, and on public Liability and Property Damage, and Workmen's Compensation, and all other` insurance as may be required by any law or ordinance, or direct in writing by the MGINEER. The FINOINI;FR may direct the form in which accounts of the "actual field cost" shall be kept and the records of these no shall be made available to the ENGINEER. The ENGINEER shall. Also specify in writinr,, before the worn. com- mencos, the method of doibg the work and the type and kind of mac~;.nory and equipment to be used. Unless otherwise agreed upon, the prices for Lhe uno of' machinery and equipment shall be dotormin©d by using 100 poroont, unlenu other- wise speci.lied, of Lho schedule, current at the tlmr; of such use;, of Equipment, Ownership Cxpenmo adoptod by t;he Ansociated Genera' f-ontrael,ors of Amnri.an. 'There practicable the, termt; and prices for the use of m:iohinery and oqult)_ menu, nhall be incorporated in the Written Extra Work ')rdor._ The fift;cen (1~;~) percent, of the "annual fledd cost" to be paid Uo "uNTRACTOR shall r1QV r and componsaLe him for his prof'it,_ovorhead, gen,:ra.l. suporintendonoe and field oafine oxponEie, and All other el.emnnts of Pont. and oxpenge nnt, ombraoed within the "ictual t'iold cr-l " an herein dr f i.no:a., ;save Lhat. where the "ONTItACTOR15 "amp or Field Offico must be maintnined rolnly on account of suoh Extra Work; then the cost to maintain and operate Lhc same shall be d,noluded in the "actual field cost". No claim for Extra Work of any kind will be allowed unless ordered in writing by the r-VOINEER. In cage any ordors or instruotions, either oral or written,, appoar to the CONTRACTOR to involve Extra Work for which he should receive compensation or an adjustment in. the construction time, he ahall make written request to the ENOTUER for written order authorizing such Extra Work,` Should a 111foronoo of opinion arise ae to what does or (loon riot; oonst .tutu Extra Wei k, formano or r a;3 the the paymont therefor, and the ENGINEER insists upon its per- he CONTRACTOR shall. proceed with the work after making written 3-5-62 zl request for written order And shall keep an accurate account of the "actual field cost" theroof, as provided under Method (C). The -10IITRA(''TOR will thereby preserve the right to submit the matter of payment to Arbitration, as herein- below provided. 6.02 TIME OF FILM] !'MAIMS. It is further agreed by both parties hereto that all questions of dispute or adjustment presented by the IONTRIICTOR shall be in writing arrd filed with the ENGINEER within fifteen (15) days niter theE'NOINSER has given any directions,, order or instruction to which the CONTRACTOR desires to take exception. Tho ENGINEER shall, within fifteen (15) days, reply to such written exceptions by the CONTRACTOR and render his final decision in writing. In case the CONTRACTOR should appeal from the ENGTNEERIS decision, any demand for arbitration shall be filed with the ENGINEER and the MIER in writing within ten (10) days after the date of delivcrit to CONTRACTOR of the ENGINEER'S final decision. It is fyrther agreed thai final, acceptance of the~work by the OWNER and ,the aaceptano'e fly the' CONTRACTORt of the final payment shall be a bar to Any claims by either party, except where noted otherwise in the Contract Documents. 6.03 tDITRATTQN. All questions of dispute tinder this;Agreament shall be submitted to arbitration at the request of either party to the di;sputo. The parties may abroo upon one arbiter; otherwise, there shall be three, one named in writing by. each party, and the third chosen by the two arbiters so soloc!00d; or If the arbiters fail to select a third within ten (10) nays, he shall be chosen by u District Judge serving; the County in which the major portion of the project is looatcd, unless otherwise specified, Should the party demand- ing arbitration fa.U to name an arbiter within ten (10) days of the demand, his ria;ht to arbitrate shall lapse, and the decision of the ENOIN12:16 shall be final and binding on him, Should the other party fail to ohoose an arbiter within ten (10) days, the ENGINCEP. shall appoint such arbiter. Should r;tthor party refuse or neglect to supply the arbiters with any papers or information demanded in withings the arbiters are empowered by both parties to take ex parto prooeodinfs. '['he arbiter.,-, shall not with promptness. Thu decision of any two shall be binding on both partion to the contract, The dociuion of tho arbiters upon any question submittod to arbitration under this contract ;,hall be a oonrii.M i;ion prccedont to any right of lep,rtl. action, rho dociF;i.on of the arbiter or arbi.tr,rs riviy be filed in court Lo carry it into cfI'cot, 7, AIMONMENT dl' CON't'RAC P 7,01 ABANDONMTBYY„CONTRACTOR In case the CONTRACTOR should abandon and fail or refuse to resume work within ton (10) dayq'aftor written notification from the OWNER, or the ENOTNUM , or If, t:.e CONTRACTOR fails to oomply w'.th the orders of the ENGtntftl when such ordes are"oknsi®tant with tho Centi'agt bo'ouments, then, and fn that cAse, whern performancd and payinent bonds exist, the Surety on the bonds shall be n(5t'rfidd in writing and direatod to'oomp.lo'to ) -5.62 22 1 the work, and a copy of said notice shall be delivered to the CONTRACTOR. After receiving said notice of abandonmento the CONT%CTOR shall not remove from the work any machinery, equipment, tools, materials, or supplies than on the ,job, but the same, together with any materials and equipment under contract for the work, may be held for use on the wo,,k by the OWNER or the Surety on the performance and payment bonds, or. another contractor in com- pletion of the work; and the CONTRACTOR shall nr,;; rocei.ve any rental or credit therefor (except when used in connection with Extra Work, where credit shall be allowed as provided for under Section 6) Extra Work and Claims), it being understood that the use of such equipment and materials will ultimately reduce the cost to complete the work and be refleoted in the final settlement. Where there is no performance bond provided or in case the Surety should fail to commence compliance with the notice for completion hereinbefore_ provided for, within ten (10) days after service of such notice, then the OWNER may provide for completion of the work in either of the following elective' manners: .~13. The OWNER may thereupon employ such force of men and use such mach- inery, oquipm tit, tools, materials, and supplies as said OWNER may deem necessary to complete the work and charge the expense of such'labon, mach- inery, equipment, tools, materials, and supplies to said CONTRACTOR, and expense so charged shall be deducted and paid by the OWNER out of such moneys as may be, duo, or that may thereafter at any time become due to the ".ONTRACTOR under and by virtue of this Agreement. Tn case suoh expense i.a loss than the sum which would have been payable under this contract, if the same had been completed by the CONTRACTOR, then said CONTRACTOR shall receive tho difference. In case such expense is greater than the sum which would have boon payable under this contract, if the same had been completed by said CONTRACTOR, theta the CONTRACTOR and/or his Surety shall pay the amount of t,ueh excest, to the OWNER, or ZIOI . Tho ()'•J,lER) under sealed bids, after rive (5) nouiee published ono -)r more 1.1-M0s in a nownpaper having ;rneral oireu3af.inn in the county of the location of the work, may let the A:untract for the, completion of the wort: under !,ulx)Larrtially the same terms and conditions which are pro- vided h; Lhis ,ontranL. In case of any increase in cost to the OWNER under the now norttraoL as compared to what would have L,oen.the cost under th)s contract, such increase shall be chargod to the d-,1'rftAC'I'01t and the Surety shall he and remain bound therefor, However, Should tho gos,t to complete any such new contract, prove to be less than what would have beer tho.cost to complete under _this contract, the UONTRACTOR and/or his Surat;, rlhall be credited with the difference. When the work shall hav, been substantially completed, the CONTRACTOR and his Surety 'shall be so notified and Certificates of Completion and Accept. anon, as providol in Paragraph 5.06 horoinabove, shall be issued. A com, pleto itemized statement of the contract amounts, certified to by the ENGINEER ne being correct, shall then be prepared and delivered to the 3-5-62 23 IONTRA^TOR And his `surety, whoroupon tl a CONTRACTOR and/or hi n Surety, or the OWNER as the case may bet shall. pay the balance due as refloctod by said state.- mont, within fifteen (1,S clays after the date of such Cortificatn of Completion. fn the event; the statement of accounts shows that the cost to complete the work is less than that which would have been the cost to the OWNER had the work been completed by the CONTRACTOR under the terms of this contract! or when the CON- TRACTOR And/or his Surety shall pay the balance shown to be due by them to the OWNER, then All mkohinory, equipment, tools', matorials, or supplies left an the site of the work shall be turned over to the CONTRACTOR sand/or his Surety. Should the cost to complete the work exceed the contract price,, and the CON- TRACTOR and/or his Surety fail to pay the Amount due the OWNER within the time designated hereinabove, and there; remains any machinery, equipment, tools, materialo, or supplies on the site of the work, notion thereof, together with an itok ed 10A of such equipment and materials, shall be mailed to the CON- TRACTOR 'and his Surety at 'the rospoetiVe addresses dosignated in this contrao`t; providdd,' however', that actual written notice given in Any omnnor will satialy this condition. Wor mailing;,' or other giving of such notica, such property shall be held at the risk of the CONTRACTOR and hin Surety sub,joot only to the duty of the OWNER to exercise ordinary care to protect, such property. After fifteen (11) days from the date of said notice, the OWNER may toll such Mach- inery, equi.pmont, tool,s','materials, or supplies and apply the net sues derived from suoh hale to the credit of the CONTRACTOR and his Surety." Such sale may be made A. either public' or private rate, with or without notice, as the OWNER may elect, The OWNER shall reloane any machinery, equipment, tools, matorials, or supplies, which remain on the work and belong; to porsons other than the CONTRACTOR or his Surety, to their proper owner; The books on all operations provided herein shall be open to the VONPRA^TOIt and his Surety. 7,02 ADANIMMYNT1Y 'PIER. In case the OWNER shall fail to comply with the, terms of this contract, and should fail or refuse to comply with said terms within ten (10) days After written notification by the CONTRACTOR, then the ".ONTRA CTOR may suspend or wholly abandon the work, and may remove, therefrom all machinor,y, tools and equipment, and all materials on the site of the work that have not been inelulod in paymentn to the CONTRACTOR and have not boon wrought into the work. And thereupon, the ENOINERR shall make an estimate of the, total Amount earned1,y the ^ON'!fV,1TOR, which ostim,Ate shall. "Icludo the value of all work .antually nog0ted by said QONTRACTOR (at the prices stnted in the attached proposal whnro unit pricers are used, the valu:n of all par- tially completed work at a fair and equitable price, and the, amount of all. Extra 'Mork performed at tho prices agreed open, or provided for by the terms of this contract, and A rQAr;onnblo num to cover tthn onnt of any provisions made by the CONTRACTOR to Carry the wholo work to completion and whiah cannot be utili.zed.' The i;NOMER shall than make fi.nal statement of the balance due the CONTRACTOR by deducting from the above. intimate all previous payments by the OWNER, and all Mop sums that may be retained by the OWNER under tho terms of thin Agronment,'and shall cortil) name to the OWNER, who shall pay to the CONTRACTOR, on or before thirty (30) days after the data of the notiMoaiion by the CONTRACTOR, the bal,anoo ;shown lSy saintfinal statement as due the CON- TRA 'TOR undo'r the! 'terms of this Ag;r6orent. Y;ND CI V, RAI, CONDI'TION'S 3-5-r~ 7th SECTION T GENERAL CONSTRUCTION BPECIFICATTONP ITEM NO. 140 - GEIVRA RI Ul M' 1fi, P?T.9 _2.....,.,, r A. Oeneral Construatlon Rer~uir~ ate= 1. Desar.,3it~on: This section of the specifications contains detail specifications and deacriptions covering the major items of construction and workman hIp necessary for building and cumpleting the various units or elements of tho project, The specifications are intonded to be so written that only first class workmanship and finish of the best grade and quality will result. Barea.y meeting the very minimum requirements will not be considered as eatisfaotory. The fact that these specifications may fail to be so complete as to cover all details will not relieve the Con- tractor of full responsibility for providing a completed project of high quality, first olaso finish and appearance and satisfactory for operation. 2, Sc- wli The work covered under this section includeat but is not limited to, the followings Clearing of area of construction; leveling and grading the site; construction of pipe gallery, filters, flocculators, and sedimentation basin; construction of foundation for clearwell; etc. B. at a s~ Those specifications are intended to be so written that only materials of the best quality and grade will be furnished. The fact that the specifications may fail to be sufficiently complete in some detail will not relieve the Contractor of full responsibility for providing materials of high quality and protecting them adequately until incorpora•- tion in the structure. The specifications for materials set out the mini- mum standard of quality which the Owner believes necessary to procure a satisfactory project, No substitutions will be permitted until the Con- tractor has received written permission of the Engineer to make a substi- tution for the material which has been specified. Whore the term "or equal", nor approved equal.", is used it is under- stood that if a material, product, or piece of equipment bearing the namr, so used is furnished it will be approvable as the particular traOo narno was used for the purpose of establishing a standard of quality aoceptablo to the Owner. If a product of any other name is propooed for use, the Engineer's approval thereof must be obtained before the proposed Substitute is procured by the Contractor. 11herever the term "or equal" is used it is understood to mean "or approved equal". END OF ,ITEM 100-1 ITEM NO, 101 - CLEARING AND GRUBBING AND TOPSOIL 5UftI^ACINO A. ClearLR and Ortrbh~t Clearing shall consist of removal and dig. pose of all trues, s"umps, brush, logs, down timber, roots, rubbish, vegetation and other Ub,jeetionable matter from the construction site except in those areas shown on the Plans or directed by the Engineer not to be disturbed. The sites of struotures and other areas to be excavated and filled shall be cleared and grubbed. foot Obelowntheffiroots and nish grade stumps will reuired to a a1 exca ations, andt to of depth one (11,) one (19 foot below the ground surface after the top soil has been re- moved in areas to receive embankment. All cleared and grubbed material shall be disposed of in a manner satisfactory to the Engineer. B. Salvanin an R_ epla ingTopppili Salvaging and replacing topsoil shall consist of salvaging and stockpiling the organic weathered topsoil l and subsequent placing on portions of the site not containing otruotures or other items of construction. After clearing and grubbing has been completed and before any grading has begun, the existing topsoil shall be mcve6 from the areas where excavation and embankment is to be con- structed and shall be stockpiled. Salvaged topsoil shall be cleaned of major root systems, weeds, grass, brush, debris, or other objectionable material pr;tor to spreading on the areas to receive the topsoil. Immediately prior to dumping and spreading the topsoil on any area, the surface shall be loosened by disking or other means to a depth of at least two (2) inches to facilitate bonding of topsoil to subgrade. On areas to receive topsoil, the rough grading shall be accomplished so that when all suitable topsoil is placed the grade shall be at established finish grade, smooth, pleasing ;n appearance, and with no depressions capable of holding water. Topsoil shall be dumped in separate piles and uniformly distributod by blade grader or other suitable equipment. Topsoil shall riot be placed when the ground in frozen or excessively wet, Each layer or layers shall be compacted to a density approximately that of undisturbed topsoil adjacent to the site. C (}raciin and Sods The area aroutrd the building, storage tank, piping, structures, etc., which do not receive any type of paved surface, shall be greeted sad raked smooth and even no that it will drain generally away from the structures toward the natural drainage course. All large clods of earth shall be broken up and no rocks, trash or debris shall, remain on or near the surface. The following areas shall be brought to grade with natural topsoil free from rooks, trash, or de brio, and nodded with live Bermuda Grass sprigs on 12_inoh centerst 101»1 (1) The slopes of the excavation for the steel storage tank area that are to be excavated unier'this contract. (2) The west slope of channel that drains the area around the storage tanks, (3) All existing sodded areas which are damaged during the process of construction of this contract. The Hsrmuda Orasa roots in small tufts shall be placed by hand in slight depressions and the soil placed around the tufts in such a manner that it will. be firm and level with the other surface. 'the sodded area shall be kept sprinkled to whatevor extent may be necessary to keep the sod alive, and the surface shall be kept smooth and free of washes or sinks until accepted by the Owner. END OF ITEM 101.2 ITEM x;._102 - EARTINORK A. Oenerals The Contractor shall perform all excavation and embankment as may bu necessary for the construction, to line and grade shown on the plans, of all structures, roadways, utilities, and inoidentals thereto. All excavation shall be "unclassified". In making excavations, the Con- traotor shall do all necessary shoring, bracing, sheeting, pumping and bailing. Where necessary to determine the location of existing pipos, valves, or other underground structures, the Contractor, after a careful examination of available records, shall. make all explorations and ex- cavations for such purpose. Temporary support, adequate protection, and maintenance of all underground and surface pipes, structures and other obstructions encountered in the progress of the work shall be furnished by the Contractor at his own expense. B. St etural Ex avc a ttio i Excavation shall extend a sufficient distance from walla and ootings to allow for forme, installation of services, and for inspection, except where concrete for walls and footing is author.. ized or required to be deposited directly against excavated surfaces. Where the excavation is made below the elevations indicated on the drawings or directed by the Engineer through the fault of the Contractor, the exca- vation shall be restored to the proper elevation with loan concrete or other selected material, at the expense of the Contractor. In order that the Eng`.neer may judge the adequacy of n proposed foundation, the Contractor, if requested, shall make soundings to de- termine the ohnraeter of the subgrade materials. The maximum depth of such soundings will not be required to exceed five (51) feet below the proposed footing grade. It is the intont of this provision that soundings shall be made at the time the excavation in each foundation is approximately complete. The final elevation to which a foundation is to be constructed shall be as shown on the drawings or as ra.l~sed or lowered by written order from the Engirv~er when such alterations are Judged propcir to satisfactorily comply with the design requirements for the etructure. Should it be found neoessary to increase the depth of footings from that shown on the drawinga, the necessary alterations in the details of the structure shall be aceomplir,hod in a manner as directed by the Engineer, who shall have the right to substitute revised Oet~alls if nocoaaary. Yhon a structure is to rFst on an excavated surface other than rock, spocial care shall be taker. not to disturb the bottom of the exoavation, and removal of the last material, required to reach foundation final grade shall not be porformo d until Just before the footing is to Ixa placed. All rook or othor hard foundation material shalt be freed from all loose material, cleaned, and cut to a firm surface either level, stepped, or serrated, as directed by the Fngineer All, seams shall be cleaned out and filled with concrete at the time the tooting is placed. 102.1 Fxcavats-l material required to be used for backf ill may be deposited by the Contractor in storage piles at points convenient for rehandling the material durinU the baokfilling operations. The location of storage piles shall be subject to the approval of the Lngincor. C. Trench EXcavationt Trench excavation comprisoa eyoavati,on for all water lines, sewer lines, drain lines, miscol.lnneoun lines, and appurten- ances for the various types of lines. All excavations shall be made by open out. Banks of trenches shall be kept as nearly vertical as possible and, If required, shall be properly sheeted and braced. Trenches shall be not less than twelve (1211) inches nor more than sixteen (16") inches wider than the out,3ide diameter of -;he pipe tc be laid therein and shall be excavated true to line so that a Blear space not less than six (69 inches nor more than eight (811) inches in width Is provided on each side of tho pipe, I't'U holes shall be excavated to insure bell end pipe resting for its entire length on the bottom of the trench. The bottorns o," all trenches excavated for vitrified clay or concrete sewers or drains shall be rounded so that at least one-fourth (1/4) the circumference of the pipes will rest firmly on undisturbed soil, unless concrete cradle is requireu. Excavation for msnholea and other accessories shall be sufficient to leave at blast twelve (1211) inches in the clear between the outer surfaces and the excavation. Except at locations where rook excavation forms the bottoms of the trenches, care shall be taken not to excavate below the required depths. Where rook excavation is requirect, the rock shall be exoavA;.ed a minimum overdepth of four (411) inches and backfilled to the required elevation with loose, moist earth, thoroughly tamped to the satisfaction of the Engineer. No pipe shall be laid in a trench In the presence of water. All water shall be removed from the trenches sufficiently ahead of the pipe placing operations to insure a dry, firm bed on which to place the pipe, and trench shall continue to be de-watered until after the pipe has been placed and ,jointed, Removal of crater may be accomplished by bailing, pumping or by other suitable moans. U. Baokilll for 9truot_ uress After completion of foundation footings and walls and other construction below the elevations of the final grades, all forms shall be removed and the excavation cleaned of any trash, debris or other objectionable matter prior to baokfilling, Material shall be placed in layers approximately nine (9") inches in depth, properly moistened to approximate optimum requirements, and each layer oompaoted by hand, machine tampers, or other suitable equipment to a density to prevent excessive settlement or shrinkage, Where pipes, walks, or other oonstruotion is to be placed on or in the backfilled material, the backfi111ng shall be done in a thorough manner to preclude after- settlement. Backfilling shall be brought, to a suitable elevation above natural ground or grade to provide for any anticipated settlement and shrinkage of the structures to prevent any damage to these structures, Contractor shall secure the approval of the Engineer prior to placing backfill around any of the structures. Contraotor shall be responsible for settlement, and shall restore surfaces should any settlement occur. .102-2 E DROkfil.l _for _Trenches,. nackfil.l shall be carefully performed to the original grade, and the original surface rostorod to the satin. faction of the Engineer, or to the bottom of footingo or slabs where the trenches are under oonstruotion. In pike trenchas, after pipes have been tested A nd approved, backfill consisting of oxoavat,od materials, free from large clods or stones, or other objectionable material, shall be care,t'ully deposited in layers not to exceed six (611) inches in thick- ness on both sides of the pipe and each layer thoroughly and carefully compacted until an elevation one (11) foot above the top of the pipe has been reached. The remainder or the backfill may be thrown in, moistened and thoroughly compacted by tamping, rolling, or otherwise, Wherever the trenches have not bsen properly filled or if settlement occurs, they shall be refilled, eompactod, smoothed off and finally made to conform to the surface of the ground, Where the trenches are under roadways, pipes, walks, or other con- struoti.on, the backfill shall be as specified above except that the backfill from one (10) foot above the top of the pipe to grade, or bottom of pipe or structure overlaying the trench, shall be deposited in layers not to exceed nine (9") inches in thickness, moistened and compacted to a density equal to or greater than that of the undisturbed material adjacent to the trench. Where indicated on the plans, the backfill in tronches shall be of lean concrete. F. Fmbankmentt prior to placing any embankment, all clearing, grubbing and st ipping operations shall be completed and.. stump holes or other small excavations shall be bsokfilled with suitable material and thoroughly tamped, Embankment material shall not contain tre3s, stumps, roots, vegetation, large or frozen lumps, or other extraneous materials. The surface of the ground, including plokred, loosened ground, or surface roughened in any manner, shall be restored to its approximate original slope by blading or other methods and, where required by the Engineer, the ground surface thus prepared shall be compacted by sprinkling and rolling. Embankments shall be constructed in successive horizontal layers which shall not exceed eight (8") inches in depth prior to compaction, Layers may be formed by utilizing equipment which will spread the material as it is being dumped, or they may be formed by spreading from piles or windrows. Fach embankment layer shall be unifot:n as to density and mois- ture content before beginning compaction. Where unlike materials are being incorporated into the embankment, they shall be so handled as to prevent abrupt changes in the soil, No material shall be incorporated' into embankment in the form of windrow or dump but shall be moved by blading or similar means. Clods or lumps of material shall be broken and the embankment mixed by blading, harrowing, or similar methods to the end that a uniform material of v ',form density is secured in each layer, Water required for sprinkl U be evenly applied and it shall be the responsibility of the for to secure a uniform moisture content througnout the layer by sue,. As as may be necessary, 102-3 Prior to and in conjunction with the rolling operation, each layer shall be brought to the moisture content necessary to obtain the required density and shall bo kOpt lovoled with suitable equipment to insure uniform compaction over the entire layer, For each layer of earth embankment, it is the intention of this specification to provide an apparent dry density of the minus 1/4 inch material of not loss than 90% of the maximum dry density of samples of the material as determined by the Modified A.A,5,11,0, Method. The apparent dry density of the minus 1/4 inch material in the compacted layer shall be calculated as the dry weight of the portion passing the 1A inch soreen divided by the volume occupied by this minds 1/4 inch material, 0. E_xcees Earths It is antioipated that thera will be a considerable amount of excess earth from the various excavations, This earthen material will be wasted within the fenced enclosure. Rook will be disposed of by the Contraotor at locations to b< arranged for by him, The earthen material will W spread evenly at locations within the enclosure to be selected by the Engineer and left in a condition suitable for sodding. No rook will be wasted within the enclosure, No separate payment will be mnde for hauling, END Or, ITCH 102.4 IMF f PlO, 10 j - COPiCRFT h, STRKC I tt;~ A. ApArAtiow The requirements of this; Von ;;ho) rnnno for all mater. ials used and for the storage, handling, moa sur ins, Prop n Toning W mixi ; or combining such materials in producing a conowte ho, ;caurni; a incidental or miscollaneoua construction, Concrete shall be composed of normal poiq Knd c nL or 00i Nnrl, Strength Coment, mineral filler if required, marn v Tgata, Ci.ne aggre- gate and water proportioned and mixed a herdmar'tc I ov.ded in these specifications. Unless otherwise shown on the plan; or n rccr.:" y Vated in the Con- traot Documents, all concrete Shall be Wvs 'A". n n concrete shall be Class "Ef, "Central Plant", "Ready Mired" N- ,for "'iloiwit Mi.xor~" conerat;e may ly; permitted, but only after the CoUrFaow has oub;ri.tl & ank received I.h(-- approval of the Engineer, sufticionk evidence th©,t Q! r nwroto to be furnished by such method will moot all the ractuivemen4; of LW n spec &i- oations. Special attention in Wl.od to Paragiuph Id, "Tr., ;i.t itxod Concrete". B. aterial,g; 1. C. emend The cement shall be Normal Cement o ItQ „r,ty Strength portland cement. Only one brand of comoht abull be ;.died ,:my ono struc- ture except by written permission of the Engineor, Ufier •:r„h permission is grantod and more than one brand in used in one strut-: ,arc, the rc oulting concrete shall be uniform in colon, Portland cement shall meet the requirements of i lu; c , r rot- t. tandard Spooifieaticns for nortland cement of the A.S.T,M. Duni.r_ ibtio C 1)0. Type T for Aormal Portland Cement and Jpo ITT Vor Qh Nart; Strength Portland Cement, All cement shall be sampled and tested in acoordAnov with the current Standard Methods of Sampling and Testing Portland Cement of the A,W.Ta % Designations C 103, C 184, C 187, C 188, C )19, C 190 and C 191, Cement shall be delivered in toga pla;i,nly marked with the brand and the name of the manufacturer. Bags shall ouvain ninety-four (94) pounds of cement, net, and shall bo in good condition at the time of delivery, Hags of cement varying by five („v) per cent or more from the required weight may be ra,jectoO, anJ if the average weight of bags in any shipment, as determined by weig~ ng fifty (gip) bags selected at random, varies by five W) per cent o, more, the entire shipment may be rejected# opened and Engineer shall be W3 Jed In order that he may becnroseant whenethedoar the for testing, 103-1 2, M Ang Waters a, pen^.gl: Water for concrete shall be clean and free from injurious amounts of oil, acid, alkali, salt, organie matter or other deleterious substances. Water suitable for drinking or for ordinary household use will be accepted for use without being W tod. b. Tests$ When comporative tests are made U th water of known satisfactory quality, any indication of unsoundness, mArked change in the time of set, or reduction of more than five QQ percent in mortar strength shall be sufficient cause for rejection of the water under test. 3. C e A regr = Coarse aggregate shall oonni.st of gravel or crushed stone meeting the following requirements: When tested by the "Standard Method of Test for Abrasion of Coarse Aggregate by the use of, the Los Angeles Testing Machine", Method T-26, of the, OMAN, coarse aggregate shall have a percentage of wear of not more than forty (40)„ The maximum amount of deleterious substances shall not exceed the following percentage of weight: Material, removed by decantation 1.0; Shale, Slate or similar materials 10; Clay Lumps 02~~0 loft Fragments VU Other, including thin, friable, laminated or elongated pieces 3,0; The sum of all deleterious materials, exclusive of material removed by decantation, shall not exceed five (5p) per cent by weight, i Coarse aggregate shall be free from an excess of salt, alkali, vegetable matter, or other objectionable matter either free or as adherent coatings. When tested by Standard Laboratory Method:, the coarse aggregate shall conform to the following grading requirements: Pe os Retained on Screen Screen Class "A" Class "B" Class "C" Class "D" i C,gorete Concr.- Sa = x.21.. 1-1 2" 0 to 5 0 to 5 0 to 5 1-1/411 111 0to5 3/4'' 25 to 60 25 to 60 25 to 60 l%4" 95 to 100 95 to 100 25 to 95 to 100 95 to 100 103-2 4, DP Araroaates fine aggrogato shall conexet of sand or a com- bination of sand and not more than fifty (%c)) per cent stone screening. Fine aggregate shall conform to A.S.T,11. Specification vi 33 , except as modified, hereinbelow. Sand sh%11 be composed of clean, hard, durable, uncoated grains, and stone screenings shall be oomposed of clean, hard, durable, uncoated fragments resulting from crushing stone. Mineral filler meeting the requirements speci'ied heroin may be combi.ned with the fine aggregate if auoh combination I!, necessary in order to meet the grading requirements for fine aggregate. The maximum amount of deleterious substances .-ha".1 not excised the following percentages by weighty Material removed by decantation 2. Clay lumps 0, Other deleterious substances such as ooal, shale, coated grains and soft flaky particles W% Fine aggregate shall. be free 4 an excess of salt or alkali. and at the time of its use, shall be free of frozen material and all foreign material. which may have become mixod with tho aggregator i.n the stuck pile fi, j►hen tested in accordance with the Standard. Mathod of Toot for Organic Tmpuritios in Sandra for Conoreter A.S,T,'t, Designation C-40, the fine aggregate shall not show a color darker than the standard color, When the fine aggregate, to be usod on the job, is mixed with High Early Strength Portland Cement in the proportion of one to throe, the average tensile strength of not leas than three standard mortar briquets shall be equal to or greater than the tensile strength of Ottawa sand mortar briquets of the same oonsistonny when tested at the age of three days. When tested by Standard Laboratory Methods, the fine aggregates shall be in conformity with the following grading requirementsr Retained on 318" soreen o% Retained on 1/4" screen 0 to 5% Retained on 20 mesh screen 15 to 50% Retained on 100 mesh screen 85 to 100% 5, ieral_Fi11rs Mineral filler shall consist of atone dust, clean crushed shale, crushed sand or approved inert material. Minoral filler'and fine aggregate mixed in proportions proposed for use in the work, when subjected to the color test for organic impurities (A,B,T,=1. C-40) shall not show a color darker than the standard color, 1.03.3 When tested by Scandard Laboratory Methods, the mineral f filer shall meet the following grading requirements.- Retained on 20 mesh sieve Retained. on 30 mesh sieve 0 to 5b Retained on 100 mesh sieve 0 to 100% r'' Materia ~ dQ~l of p_ 1,~o -IUD UtD l'he +ano of 0.3inixos to improve workability ma,, be used if, in the opinion of the Engineer, they have no injurious effect upon the strength, density, or duraA lity of the concrete. The matorial added mny be either an air-entraining ajoont such as Darex (Dowey and Amy Chemical Company), Sika Aer (Si.ka Chemical Company), Aero- li,th (1„ Sonneborn Sons Inc.) or a disperoina agent ouch as Pozzo:lith 1`14aster Buildors Co~w%ny), If admixes are u8ed the q!i,ntity of material to be added shall lx as recommended by the manufacturer or as determined by the Engineer to produce the desired results, Admixes shall be added at the mixer. C. Jt2rApe ~„~~t l Unless otheridae provided, all cement shall be stared in well ventilated, weatherproof buildings which will protect the cement from dampness. The floor supporting the cement shall clear the ground a sufficient distance to prevent the absorption of moisture by the cement. Provisions for storage shall be ample in oapacity, and the ship- ments shall be regrograted In such a manner as to provido easy accoss for identification, and. inn pection of each shipment. The 'ngl.neor may permit small q~iintitiea of cement to be stored in the open for a short period of time (ma;(imum 41 hours) if a raised storage platfona and adequate waterproof covering; are provided. No cement shall be used which hao become lumped, caked, or hardened, D, B-torago 2f A~ara at~@r rho handling and :storage of aggregate to be used in making concrete shall such as to prevent the admixture of foreign materials. If the aggregates are stored on the ground, the site of the stock pales shall be grubbed, cleared of all weeds, grass and other vegetation, and levelled off so that the entire area will be properly drained. The entire area on which •^:ggregatp as to be stored shall be covered with wood or metal sheating;. When the contract requires the use of two (2) or more sizes of aggro gates, the different sizes shall be stored in such a manner as to prevent intermixing. Materials in stock piles shall be handled and placed in such manner that segregation of materials within the pile will be avoided and each pile shall be built up in horizontal layers of not. more than three, foot in depth. E,,, NpBjUWW ld.~gP,,i14l~pLizt,r All materials cha11 be measured separately and accurately and batehoo all, ',l by uniform. The coarse and fine aggregate shall be measured, or weijined, loose and uvparately, 103-4 Mon volumetric proportioning is used, ti'Se 'ontru for shall furnish and use approved measuring boxes, pans or mechanical, devices which will give the exact volumes of the aggregatoe roqui.rod for tho r;over:rl classes of concrete involved. The devices used shall be so conetruetod and plainly marked that the Engineer can conveniently and alcur,atcly check the exact quantity of each aggregate being used in any or all batches. A bag of cement as packed by the manufaoturer and weighing ninety-four (94) pounds trill, be oonsiderod an one (1) oubie foot. When proportion by weight is used, the capacity of the w ighing equipment shall be adequate to permit the required weighing of r,,;eri.als without de- laying the production of the miner, Scales shall be of a typo that permit the weighing of the separate ingredients without chanrritig the scale settings, and unless the scale in of this type, separate scale tints shall be fury,shed for each kind of material to be weighed. All sealss t,lall be mounted upon a firm foundation and shall be kept level during ties. Eaoh scale installation shall be provided with standard fifty (50) pound test weights made of high quality cast iron, cast and finished in such manner that no foreign material will adhere to the surface and scaled in the manner presori.bed by the United Station Bureau of Standards. The minimum numLar of test weights required shall be of a ;might equivalent to ten (10j) t>or cent of the not load capacity of the scalos to tho nearest fifty (50) pounds b t in no case shall. less than two (2) weights be furnished# The device used for moa uri.ng the quantity of water ;;hall indicate the quantity in gal.).on© and fractions thereof. 'Pie operating mechanism bhali regulate the quantity required for any givon batch within one WI) per cent and the supply Inlet shall be out off autoia;.ticall.y when water is being discharged into the mixer. P, &21P_Me D A!i a.0 nangQ All. equipment, tools, and machinery used in the performanoo of any part of the work shall be maintained in condition to insure completion of the work under way without excessive delays for rel..%irs or replacements, The Contractor must obtain the Engineers approval of all concrete mix- ing, handling, and transporting equipment before any pour of concrete is commenced, auoh approval will. not relieve the Contractor of his responei- bility for providing adequate equipment to carry on satisfactorily the pro- ,jeot operations. C. 2q and P op~,~.tli r Concrete shall. L+ proporti.onod as approved by tho Engineer, "lie total volume of materials in the concrete mixture shall be so regul.aicd that the cement content per cubic yard o:f concrete shall not be loss than the minimum specified for that class of concrete. The concrete shall be uniform and workab7o and the minimum cement con- tcnt,maximum water content, and the maximum slump for the various classes of mixes shall conform to the following; 103..E ti Max. Size of Max, 'later liaximum Min. Cement Coarse Agg. Gals. Per `)'Lump C]~ass P ~ _gy .5 ~.L Tara NotL (,Use AA 6.0 lP 6-1/2 r~ Precast concrete items A 505 1-1/2 6-3/4 1N General C ~'0 1`l/2 7 1V General :I 6.114 Thin walla D 6.5 6.-114 '_i Handrails, Foundation Seal E ~`0 l-1/2 B 6 Fill., blocking The maximum amount of coarse aggregate (dry loorio volume) per cubic foot of finished corcrete shall not exceed O.BP cubic feet. The maximum amount of water as set forth in the table above is based on the assumption that the aggregates are in a saturated surface dry condition. The concrete mix will be designed with the intention of producing con- urete which will have compressive or flexural strength equal to or greater than the followings C( lipressive Strength Flexural Strength Class of }oundy no Inch) I'c znds ner %i In.) L00912 1-0 23 AY 1 aaL 1Ll)l\x 3..LXZ AA 2,Jn0 3050 A 20000 3,()00 400 500 C 1,700 2,;,00 350 425 C 20000 3,000 4G0 500 20000 3,000 400 500 E 1,000 1,500 During the progress of the work, the Engineer will maintain a careful check of the quantity of oemont used in each structural unit, and he shall make adjustments in the mix designs to correct for any excessive variations from the theoretical. quantity of cement required when such variations are attributable to the mix proportions. In calculating the theoretical cement content, allowance shall be made for all embedded steel, and for all panels and ahambore more than three (3") inches in width. H. Qg iet_ een.vs The amount of water per batch will. be determined by the Engineer and shall be such as to produce a mixture containing the minimum amount of water consistent with the required workability. After being established, the water content may be varied only by the Engit:oer. Norm- ally, the consistency of concrete mixturAs. will conform to the foll.o;rings (1) The mortar will sling to the coarse aggregate, (2) The concrete will, not segregate when transported to the place of deposit. (3) The eionorr)ite when dropped directly from the discharge chutf) of -the mixer wi 7.1. flatten out at the canter, but the odges will ntand up and now flow. 10,3-6 (4) The mix will show no free water at the time of discharge. (5) The concrete will settle into place when Pl.anod in the forma, (6) When conveyed by metal chutes, at an angle of Lhirt,y degrees with the horizontal, the oonoreto will slide rand not flow into place. In general, when the mix is inconsistent with the above requirements, even though it conforms to the slump toots, the mix, shall be correctively adjusted. In the event that, when using the maximum allowable amount of water and the minimum amount of cement, the characteristics of the aggregates furn- ished are such that the slump and consistency requirements are not met, tho Contractor may provide aggregates of improved grading or the Engineer will modify the mix by adding cement and/or mineral filler as may be necessary, VUn mineral filler is weed, the combined total quantity of mineral filler and fine ag regate passing the one hundred (100) mush sieve shall not exceed twenty (20 per cent of the weight of the fine aggregate. No additional compensation will be allowed the Contractor for additional ~ cement and/or mineral fillor as required by this item. I Slump tests will, be made by the Engineer in accordance with the pro- cedure as outlined by the current A.S.TeMo Designation C-143, 1, sera) Mo proportions of 'materials entering into the mix, eubjoot to limitations already tatod to produce eoncrote of satisfactory quality shall be determined by laboratory tests prior to beginning of con- orate placing. 2, 1nLQT 1j1xIL, Prior to the placing of concrete, the Contractor shall submit to an :independent Testing Laboratory samples of tho matorials he proposes to use. The Laboratory shall test the materials submitted and certify that they comply with these specifications. After testing the materials, the laboratory shall design batches of the different; elaesi.- ficatione of concrete desired. Trial batches shall be run and six (6) confirmation cylinders made of eAoh batch. Three oylindere shall be broken at 7 days and the remaining three at 28 days, The confirmation cylinders shall show a 28-day strength of fifteen per cent (15%) higher than the stated minimum 28-day atrength, Reports of material, toots, design batches, and confirmation cylinders shall be given the Engineer before any concrete is placed. The laboratory oxponso of tooting ooneretc materials, trial batches and confirmation cylinders 0 411 be paid by the Contractor. 3. Ghanue4 iU1}g~ if, during the progress of the work, it is found impossible to secure concrete of required workability and strength with the materials being furnished by the Contractor., the Engineer may order changes in pibportions or materials, or both, neoeseary to secure the desired properties, subject to limitations already stated. The Contractor 103-7 may nut make changes in materi.aing either gradation, source, or brand, or proportions of mixtures after their having once boon approved except by spenific approval of the Engineer. J. qua, tv QCCggjLoz tg j 1, F T During the progress of the work, the Engineer will cast Cost oylinders of the numUer he desires for tosti.ng to maintain a oheck on the compressive strength of the concrete actually being placed. Tho Con- tractor ohall provide and maintain curing facilition, as required in A.S.T.M. Method of Making and Curing Conorete Compression ands"Lexure Tent Specimen in the Pield, Designation C,-31, for the purpose of curing; concrete test specimens, The cost of all materials and lakor as required by the ingi.noer used in making test specimens and the cost of providing and maintaining; curing facilities shall be included in the contract price, Ibisture tests of both fine and ooarse aggregate shall be made at sufficient intervals to provide for accurate batohing and proportioning. Coots of making moisture tests will be paid by the Owner. Testing equipment including wheelbarrow or buggy; shovel; slump cone and rod; plywood platform 30 inches square; twelve steel cover plates (7" x 711 x 1/$11); and, hand trowel shall be furn- ished by Contractor and arranged in an orderly manner in a location conven- ient to the work before commenoing any concreting operation. All testing equipment shall be maintained in a clean condition by the Contractor. ApL11 A.S.'i', 1. Standard Methods, tact and er ci.- ficationn an applioable shall be adhered to and compli.od with on oampling, curing, and testing of oonorete and for materials uood.therei.n. 3. TL91 op: 1(i 1 1~..`it etif'. ? CQ1?S 'pt4,j 'lion High garly Strength Portlamd. Cement is used in lieu of normal Portland Cement, the minimum allocable 28-day strength for normal. Portland Cement shall be 3 &tyn and 7 days in lieu of 7 days and 28 days for normal Portland Cement. 4• i t2.I"W..,RejkremnDi_&1 Should the strengths shown by testing specimens fall below the required values, the 1.°npineer shall have the auth- ority to require additional curing on those portions of the structures represented by the test specimens. In the event that such additional dur- ing does not give the strength required, the Engineer shall have the right to require strengthening or replacement of those portions of the structure whioh failed to develop the required strength. 'rho additional curing and/ or repl.aoement required by the Engineer, shall be done at the Contraotor's expense, and test cores shall be obtained and tested in accordanoe with A.S,T,M, Methods of Securing, Preparing; and Testing Specimens from Hardened Concretes for Compressi.vo and flexural Strengths, Designation C-43. K, Condit, oi=l 1 Qgn9a i The concrete shall be mixed in quantities required for immediate use, and any concrete whi.oh is not in place within 30 minutes after being disohargod from the mixer shall not be used. Retemperi.ng of concrete will not be permitted. In threatening weather, which, in the 103-8 opinion of the Engineer may result in conditions that, tiri.1.7. adversely affect quality of the concrete to be placed, the Engineer may or(lor pot~tponemont of the work. Where work has been started and changos in weather conditions require protoctive measures to be used, the Contractor shall furnish adequate shelter to protect the concrete against damage from rainfall or damage duo to freezing temperatures. In ease it is necessary to continue mixing oper atione during rainfall, the Contractor shall provide protective covering for concrete being placed. 2. Q41.~' a hers No concrete shall be mixed without, the approval of the Engineer when the air temperature is at or below 40 degrees Fahrenheit, (taken in the shade away .from artificial heat) and falling. If authorized by the Engineer, concrete may be mixed when the air temperature is at 35 degrees Fahrenheit and rising. Mien p armiscion is given for mixing; when the temperature is below 40 degrees Fahrenheit, all water used for mixing shall be heated to a temperature sufficient to rase the temperature of the concrete to 70 degrees Fahreahe+il•, but the temperature of the mixing water shall not excoud 165 degrees b'ahrenheit at the time or entering the mixer. If heating the mixing water only will, not raise the plaosing temperature of the concrete to 70 degree& Fahrenheit then the aggregate must also be heated,, either by steam or by dry heat, to a temperature sufficient to raise tha placing temperature of the concrete to the required temperature, In no case shall the aggregate te,iroraturo, ac it enters the mixer, exceed 150 degrees Fahrenheit. The Floating apparatus shall be such ac to heat the mass of the aggregate uniformly and proolude the occurrence of. hot spots which will burn the material. Temperatures of transported concrete shall not be loss than 60 degrees Fahrenheit at the time oi' placing in the forns. Salts, chemicals, or other foreign materials shall not be roixod with the concrete for the purpose of preventing freezing. In no case shall the temperature of the fresh concrete exceed 80 degrees lahrenheit. L, M9.~jiTinaLhjL 1„ &iinr, u ;Dgnt s The mixing; shall Le done in a batch mixer of approved type and size whi.oh will insure the uniform distrilration of the material throughout the mass so that the mixture id.11 be uniform in color and smooth in appearance. The) minimum rated size of mixer permisnibl.e will. be a 5 cubic foot batch mixer, which size may be used only on structures or units of structures involving a maximum continuous placement of not over 15 cubic yards of concrete. A 10 cubic loot or larger batch mixer shall be used where continuous placements of 15 to 50 cubic yards of concrete are involved. For larger placements, a 14 cubic foot batch mixer or larger shall bs used, The use of more than one 5 oubio foot or 10 cubic foot batch mixer to produce r•,sults equivalent to the above requirements as to sizes of mixers will be permitted. The absolute volume of the concrete hatch sh,01 not exceed 120% of the nominal capacity of the mixer. The continuous placement which goverr the size of the mixers required shall be the placements between joints mhown on the plane. After all. the ingredients are, assembled in the drum, the mixing shall, continue for a minimum time of one and one-half minutes for fourteen cubic foot mixers and larger. During the mixing time, the drum shall revolve at a speed of fourteen to twenty revolutions per minate. The mixer shall be equipped with a npood regulator to hold the mixer to its normal revolving speed of revolution, 103.:9 Tho entire contents of the drum ;ji,M be discharged. before any mater-, ials are placed therein for the succeeding batch. 'Iho first batch of Cori. Crete rwtterials plaood in the mixer for each placemont total], contain an extra quantity of sand, oomont, and grater sufficient t) coat the inside surface of the drum without diminishing the mortar content of the mix, Upon the cossation of mixing for any consa.dorabTe longth of time, the mixer shall be thoroughly cleani%d, The concrete mixer shall be equipped i4th an autojna.ti.C timing device so constructed that it is put into operation when the skip in raised to i.te full height and dumping. This device shall satisfactorily lock the Us- charging mechanism to prevent emptying of the mixer until all materiAls have been mixed together for the minimum time required, and it shall ring a bell after the specified time of mixing in the drum has elapsed, The water tank shall be arranged so that -the amount of water can be accurately measurEd, and while the tank is discharging, the inlot cuppl"7 shall be atttornati.call,y out off, Whenever a concrete !YUer is not adequato or suitable for the work it shall be removed from the site upon a written order from the Engineer and a suitable miner provided by tho Contractor. Pic!c-un and throw-over blades in the drum of the mi.xor which elre work dorm moro than torenty-five (7~~;) ror cent in depth shall be rep,ired or replaosd. by now blades, Concrete improperly mixed shall not be placed in the structure, Hand mixing of concrete will be permitted only for small placoments or in the case of an omergency, and then only on the authorization of the Engineer, VIhen hand mixing is permitted, it shall be done on a water- tight platform;. The fine aggregate and cement shall first be mixed until a uniform color is attained and then spread over the mixing board in a thin layer. The coarso aggregate shall be thoroughly saturated with water, and it shall then be spread over the fine aggregate and cement in a uniform layer and the whole mass turned as the additional water is added, After all ingredients have been added, the rm as shall be turned at least six timos or more if necessary to make the mixture uniform in color and smooth in appearance. Hand mixed batohes shall not exceed a two bag batch in volumes M. Transit mixod, central plant mixed and/or ready mixed concrete will be permitted in lieu of mixing on tho ,job, pro- vided all of the following conditions are matt (1) All requirements otherwise speoL'Ied for :nixing on tho job shall apply, including mixing equipment, (2) The consistency of the concrete at the point of delivery shall be as specified and the concrete shall be free from segregation. (3) hufficient transit mix equipment shall be asrjigned exolusively to the project as required for continuuus pours, The rate of delivery of l03~10 the mixed concrete ahali to sunk that the interval between loads shall not exceed ten (10) minutes, Concrete shall be delivered to the site of the work and disoharged from the mixer within a period of sixty (60) minutes after the mixing water has been placed in the mixer with the dry materials. (4) Satisfactory evidences shall be furnished that the delivery of concrete shall to continuous at regular and uniform intervals without stoppages or interruptions. (5) The control of design, proportioning and mixing of all ready mix, transit mix or central plant concrete shall be under the supervision of a trained representative of an established independent testing laboratory, which laboratory had been approved by the Owner, The laboratory ropresen- tative shall work in oooperation with the Engineer anq shall furnish to the Engineer a summary of all tests which are performed and for each oon- orate pour shall furnish a certificate of compliance with the speoificat'.on. No concrete shall, be poured without the laboratory representative being present either at the plant or at the project site, All coat for the nervioes of the testing laboratory representative shall be borne by the supplier of the concrete (or by the Contractor) and no direct payment therefor will to made by the Owner. For concrete pours of ton oubio yards or lass, the Engineer may waive these requirements; howovor, Jr suoh ovent, evidence shall be furnished showing a design mix to moot tho requirement of the apocificationa. END OP' ITEM 103-11 ITEM NO. 104 - CON Rgn gRa'1'UR~ A. De„s„~Lr121iont This item governs for the construction of foundations, piers, wallet slabs, columns, beams, girdors, and ail othor structural elements involving the use of concrete, All concrete Htructures shall be constructed in accordance with the design requirements and details shown on the Plonsl conforming to the pertinent provisions of the items for '7sarthv* rk","Reinforoine Steel", "Concrete for Structures", and other incidental items of the Specifications which are applicable to the com- pleted structures{ and in conformity with the requirements herein, B. Materi 1s 1, Conretes All. concrete shall conform to the provisions of the Item for "Concrete for Structures". The class of con,;rote for all structures shall be 1000 lb. (Class A) unless otherwise uhown on the Plane. 2. Expansion Joint Materiali As I?romolde,~i,Matarials Premolded expansion Joint material shall be of non-oxtruding andWresil ent type conforming to Standard Specifications for Preformed Expansion Joint Fillers for Conorote, A.S,T,M. Designation D»5449 as applicable for Type V fillers, b. Hot-Poured Joint Sealer,, Joint, soalor shall. be hot-poured asPilo lt»rubber compound applied in a workmanlike mariner in accordance with manufaoturer's recommendations. It shall be Para-Plastic, or approved equal, as manufactured by the Servicizod Products Corporation, 6051 W. 65th Street, Chicago 28, Illinois, 3• Non-Shrinking Orout Agg reantes Non-shrinking grout aggregate shall be either "Embeoo as manufactured by Master Builders Company or Forrolith as manufactured by L, Sonnoborn Sons, Ina, Elastic 4late etc ss Where shown on the Plans, or as may be required by mariner of oonstruction, DURAJOINT Waterstops, or an approved equal, shall be embedded in the concrete. The Contractor shall supply and install Durajoint No, 5 unless shown on the plans otherwise, Dura,joint Wateratops shall be extruded from elastomorie plastic materials and shall fulfill the r.ollowing roquiromentss A. Material » The waterstop shall, he fabricated from a plastic compound, the basic resin of which shall be polyvinylehlorids. The com- pound shall contain any Additional resins, plasticizers, stabilizers or other materials such that, when compounded, it shall most the performance requirements given in this specification, No reclaimed PVC nor any PVC compound other than that specified herein shall be used, b, Tonsils Strength » When tested according to AGTM D412-51T (die "C") the tensile strength of the material shall be not less than 2000 PSI (Std. Grads), 1041 rrf~a. Ultimate Elongation - When tested according to ASTM 1412.51T We C ) the ultimate elongation of the material shnll not be less than 25~d. Low Temperature Brittleness -omen tooted aocording to ASTM D746-55T the material shall show no sign of failure (oraoking, ohipping, eta.) at minus 8-deg. F. o. Stability in "Effect of Alkalies" Test . Whon tested according to HEPC of Ontario, 0.245-55, 7(h), the material shall not show any dimensional changes in excess of one percent; nor shill its weight increase by more than 0,40 percent at 30 days, Materials that exhibits AU peorease in weight in 30 days will be considered to have failod, f. General - Care shall be taken of the corycot positioning of the Waterstops during installation, The center line of bho Wateratop shall ooinoide with the joint opening. By thorough working of the concrete ensure that maximum density and imperviousness is obtained in the vicinity of all. joints. Splices in the continuity or at intersections of runs of Water- stops shall be performed by fusing the adjacent wateratop using a heat device ttheermostatiep7. cent or l7.ed, 5. Ot~ior Materialst All other materials, such as reinforcing steel and etruRura stee shall conform to the requirementp of the pertinent specifications under this Contract. C. (lenoral Conctruotioq Roauii;ementst 11 r. or A royal b~ to ineert fefore starting work, the Contractor shall inform the Engineer tiully~as to the type of forms and methods of construction he proposes to use, and as to the amount and character of equipment he proposes to use, the adequacy of which shall be subject to the approval of the Engineer, The Contractor shall submit a schedule showing the sequence of concrete pours, The primary consideration in the preparation of schedule shall be the pouring of alternate sections in long structures to provide for shrinkage of concrete. Thin sequence of pours, when approved, shall he strictly adhered to unless otherwise authorized by 104-la the Engineer, Before constructing forms and falsework for concrete struo- turea, plans shall be submittee,, to the Engineer for review and approval. Concurrence on the part of the Engineer in any proposed construction methods, approval of forms and falsework plans shall not L .onaiderod as relieving the Contractor of the responsibility for the safety kr correctness of his methods and adequacy of his equipment, or from carrying out the work in full a,ooordanoe with the Contract, 2, im'Te Sequenoe of Operation i Unless otherwise provided, the following requirements shalt govern for the time sequenoo in which construe- tion operations shall be carried on. Steel beams or forms and 'alsavrork for superstructures shall not be erected on concrete subatruotures until the concrete in the substructure has oured at least four curing daye. Concrete for concrete slab or girder spans or concrete nlabs on steel beam spans shall not be placed until the substructure has oured at least 8eveu curing days, Steel trusses or plate girders to be erected from the ground. orr approved falsework mhy be erected whan the, substructuro has oured four during days, but the falsework shall not be removed until the substructure has oured at least seven curing days. Forms for walls or columns shall not be erected on concrete footings until the concrete in thefboting has cured at least seven curing days. Concrete maybe placed in a wall or column as soon as the forms and reinforcing steel plaosmonts are approved. The use of completed portions of a structure as the Bite for mixing operations or for storage of materials will not be permitted until the particular portion of the structure Inas aged at least ten oaring days, A curing day is defined in paragraph M, hereof, "Removal of Forms and Falsework". In continued cold weather the oonstruction operations may be authorized at the end of a period of calendar days equal to twice the number of curing days specified above. D- ou ionst Excavation for foundations and preparation of foundation surface shall bu made in accordance with the requirements of the pertinent specifications under this Contract, E. Draines Weep hole drains shall be installed in retaining wallet in accordance with the details shown on the flans, F. Fxyansion Joints and .22. 1, fleneral Recuirementoi Expansion joints and devices to provide for expansion and contraction shall be constructed where and as 10 ioated on the Plane, All Joints constructed open, which are to be left open or filled with poured joint material, shall be constructed using forme adaptable to loosening or early removal. In order to avoid jamming such forms by the expansion action of the concrete and the consequent likelihood of injury to the ad,jaoent concrete, these forms shall, be removed or loosened as soon as praot'.cable after the concrete has attained its final set, A provision Roe loosening the forms to permit free expansion of the concrete without tho necessity for full removal is preferred, 104-2 2. W.,orkmansh~gr Promolded materials, whorever used, shall be anchored to the concrete on one side of the Joint by means of copper wire not lighter than No. 12 p & S gauge, Such anchorage shall be suffioient to preolude the tendency of the material to fall out of the ,joint. Careful workmanship shall be exercised in the construction of all Joints to ineure that the conorote sections are oompletoly separated by an open ,joint, or by the joint materials, and to insure that the Joints will be true to the outline indicat- ed. Immediately after the removal of forms, and again where necessary after surface finishing, all projecting concrete shall be removed along the exposed edges of premolded materials in order to secure full effectiveness of the expansion ,joint, Where roofing felt or premolded materials are specified for horizontal ,joints, the material shall, if praotiuoble, extend two inches beyondthe form for the top member. The pro,jooting portions shall be sub- sequently trimmed to the face of the member after the forms are removed. • L}. .ens u _iQn Jolnt~t The formed eiin in direot¢contact concrete thatohas attainedyitsainitialasetoshallrbbe with deemed a construction ,joint, When concrete in a structure or a portion of a structure is specified to be placed monolithically, the term monolithic shall be interpreted to mean that the manner and sequence of concrete placing shall be such that construction Joints will not occur. Construction Joints shall be of the type and spacing shown on the Plans, Additional Joints will not be permitted without written authorization from the Engineer. Any additional o;,nstruotion Joints shall have details equivalent to those shown on the Plans for Joints in similar looationo. 2, PrsLaration_ of_Existin Cover tes Before Joining plastic concrete to concrete that has already set, the surface of the oonorete in place shall be reasonably rough with eome aggregate particles exposedl shall be free from all loose materials, laitanoe, dirt, or foreign matter; shall be washed and scrubbed clean with stiff brooms and thoroughly drenched with water until saturated) and shall be kept wet until the plastic concrete has been placed, The method of preparing the surface of hardened concrete to expose a clean surface of sound concrete shall be determined by the Contractor subject to approval of the Engineer. Immediately prior to the placing of additional concrete on horizontal surfaces, all forma shall be drawn tight against the concrete in place, and the surface of the concrete in place shall be flushed with a coating of mortar about two inches thick, An application of mortar should be applied on vertical surfaces, if possible, 'This mortar shall be worked into the irregularities of the hard surface if possible, and should have the same sand. and cement content and water,. cement ratio as the concrete being placed, In lieu of this method of pro. viding excess mortar for coating, the Engineer may require that the Con. traotor provide excess mortar by leaving out one-half of the gravel in concrete for first layer at the joint, If shown on the Plans, construction Joints shall be provided with oorturete keyways, reinforcing steel dowels 104+3 and/or metal water stop,3. The method of forming keys for keyed joints shall be such as to pormlt tho easy removal of forms without ohipping, broaking, or damaging thy, conoreto in any manner, All keyway forms must be oiled before installM ion, opeoial attention shall be given to the construction of keyed ,jointo so that they will be neatly constructed of thoroughly onampaoted oonorete, free of excess water and laitanoo and uniform in every respect. 3, -]lgtru t~12n Joint 8etweerl l~all„gdd. Footing, in D siitsi The Con~- traotor shall take all. necessary steps to insure watertight structures, Attention is called to the fact that the plans do not apeoify a water stop at the construction joint between the footing and walla, however, the Contractor may, at his expense, install a PVC water stop at this location. Just prior to placing the oonorete for the walls the entire wall bearing area, including the keyways, shall be thoroughly oleuned and washed, The first horizontal three (39 inches of the walls shall be poured with grout. (trout shall be of the same proportions as specified for oonormte, except minuo the coarse aggro ate (Sand to cement ratio shall remain the same as for Class "A" oonorete , H. ~aleewcrk3 1, 9gaM u i3Mo3?tgp All falsework shall be designed and oon- struoted so that no oAoessive settlement or deformation will occur, and so that the necessary rigidity will be provided. Details of falsework construction shall be subject to review and approval by the Engineer in aocorelanoo with the provisions of Section C, "General Construction Requirements", of this item, 2, Deeigt Loadss For Calculating the loads of falsework, a weight of 1,50 pounds per cubic foot shall be assumed for concrete, and it live load allowanoo of 50 pounds per square foot of horizontal surface of the form work shall be included. Thu maximum unit stresses shall not exceed 125 per gent of the allowable stresses used by the Engineer for the design of the structures, 3, M to srialel All timber used in falsework centering shall be sound, in good condition, and free from defects which will impair its strength. Steel members shall be of adequate strength and of such shape as to be suitable for the purpose intended, Timber piling may be of any species of wood which will withstand driving satisfactorily and which will adequately support the superimposed load, 4, Wo rkmanshini Whore sills or timber grillages are !cod to support falsework columns, such sills and grillages, unless founded on solid rook, shale or othor hard materials, shall, be placed in excavated pigs and back- filled to prevent the softening of the supporting material by trip from the io4..1.c forms or by rains that may occur during the oonstruotion process. Sills or grill-Ages ahall be of ample size to Support the superimposed load without settlement, Falsework which cannot be founded on a satisfaotory spread footing shall, be supported on piling which shall be drivon to a bearing oapauity sufficient to support the superimposed load without sottlement, In general, each Falsework bent shall be capped tranavorsnly at the proper elevation by a cap of adequate size. If desired by the Contractor, however, a short cap section forming a T-head may be substituted at the top of each pile or column in the bent and shall be set at the proper elevation to produoe, in conjunction with the use of approved hardvood wedges or ,jacks, permanent camber indicated on the Plans or specified, plug a construction oamber oovering allowance for deformation ot` the forms and Falsework. The use of wedges to compensate for incorrectly out boars-,,g surfaces will be permitted; however, wedges shall be used in pairs and shall be so arranged as to insure uniform bearing. Each Falsework bent shall be securely braced to adjacent bunts by braving material of ample size to provide the stiffness requirod, The bracing shall be securely spiked or bolted to each pile or oolumn it may cross, I. Format 1, gen,@1,tgqAtr9ggajgs Forms shall be built mortar-tight and of material, sufficient in strength to prevent bulging between supports. They shall be set and maintained to the lines designated until the oonareto is sufficiently hardened to permit form removal. During the elapsed time between the building of the forms and the placing of the concrete, the forms shall be maintained in a manner to eliminate warping and shrinking, Details of form construction should receive approval of the Enginoer before form erection to eliminate possible delays in pouring, since permission to place concrete will not be given until all form work is completed to his satia- faotion, If at any stage of the work the forms show signs of bulging or sagging, that portion of the ootiorete causing such condition shall be immediately removed, if neoessary, and the forms shall be reset and securely brami against further movement. Form or form lumbar to be reused shall be maintained clean and in good condition as to accuracy, shape, atrength, rigidity, tightness, and smoothness of surface. Any lumber which is split, warped, bulged, marred, or has defects that may produce work inferior to that resulting from using now material nhall not be reused. All. forms shall be so constructed as to permit removal without damage to the concrete, Particu- lar and special Oars must be exercised in framing forms for copings, offsets, railing, and all ornamental work, so that there will be no damage to or marring of the concrete when the forms are romuvid, If desired by the Contractor, the forms may be given a slight draC-, i,u permit ease of removal, Whenover praotioable, forma shall be erected complete before the reinforcement is planed. For narrow walls and other locations where access to the bottom of the forme is not otherwise readily attainable, adequate clean-out openings shall be provided. At tho time of placing conorete, the forma shall be clean and entirely free from all chips, dirt, sawdust, and other extraneous matter. Forma for slab, beam and girder construction shall not have tie wire outtings, nails, matohes, or any other matter whatsoever whi,oh would mar the appearance 1o4.5 of the finished oonstruotion, All forms shall be olrsnnod to the satisfaction of the Engineer. 2. posi~ ~ sign Loadsi Dorms shall be designed farthr, probsure exerted by a liquid weighing 150 pounds per cubic foot. The re.tn of placing the oonorete, temperature of oonorete, Arid whothor ooncrello 1o vibrated or not shall be taken into corisideration in dotormining the depth of the equivalent liquid, An additional live load of 50 pounds per square foot shall be allowed on horizontal surfaces, The maximum unit stresses shall not exceed 125 per cent of the allowable stresses used for the dooign of structures. 3- L%Lex"r R. ftnoral Z.Ql'Jn.,iLU&gxt Lumber for forms shall be properly seasoned and of good quality, It shall be free from loose or unsound knots, knot holes, twists, shakes, deoay, and other imperfections which would affect its strength or impair the finished surface of the concrete. The lumber used for facing or sheathing shall be surfaced on at least one side and two edges, and shall be sized to uniform thickness. The use of nominal two.•inoh lumber as A. minimum thickness will be required for forms for the bottoms of all superstruoture girders except that in cans of speoial forming of girders, as for curved bottom girders where facing boards are transverse to beam, the Engineer may permit the use of one-inoh lumber, Lumber of nominal ono-inoh thickness will be permitted for general use on other portions of the structure if baoked by a sufficient number of studs and wales. b. Lining Timber forms for exposed concrete surfaces which are to be given a rubbed .finish, shall be faoelined with an approved type of form lining material, If plywood is used for form lining, it shall be made with waterproof adhesive, shall have a minimum thickness of c,rne- fourth Inch, and preferably shall be oiled at the mill and then reoiled or lacquered on the job before using, If fiber board is used it shall be tempered Masonite Concrete Corm Presswood, having a minimum thickness of three-sixteenths inch and shall be thoroughly wet with water at least 12 hours before using. The water shall be applied to the screen side of the board and the boards shall be Stacked screen side to L,oreen side. The smooth hard face shall be used as the oonte.ot surface of the form, If desired by the Contraotor, facing for such surfaces may be constructed of three- fourths inch thick plywood made with waterproof adhesive backed by adequate studs and waled, keeping in mind that for greatest strength the outev plies should be at right angles to the studding, and in this case, form lining will not be required, Edges and faces of adjacent panels shall be carefully aligned and the joints between panels shall be filled with patching plaster or cold water putty to prevent leakage, and sanded lightly with No. 0 sandpaper to make the joints smooth. 104.6 . . i5~es a 1~ U ' Lion I (1) Molding specified for ohamfor striprf cr' other uses shall ho made of red4rood, cypress, or pins materials of such 'Line that will not riplit when. nailed and which can be maintained to a true Brio without warping. The molding shall bo mill out and dressed on all facer. Unloss otherwise provided, forms shall be filleted at all sharp oorners, both inside and outside, and edges with triangular ohamfor strips. The strips shall be throe-fourths inoh, measured on the sides. All ohamfor strips shall be thoroughly oiled before installation on forms, (2) Forma for railings and ornamental work shall be constructed to standards equivalent to first olasa mill work, All moldings,panel work and bevel strips shall be straight and true with neatly mitered joints and of such design that the finished work shall be true, sharp, and mean-out. 4, LQr ')dos Motal form ties of a type approved by the Engineer shall be used to hold forms in place, Such ties shall be of a ty,)e especially desibned for use in connection with concrete work, and tncy shall, have provision to permit eaun of removal of the metal as hexa,inafter specified. The use of wire form ties will not be permitted except by approval of the Engineer. All metal appliances used inside of the forms to hold them in correct alignment shall be removed to a depth of at least five-aight~u of an inch from the surface of the concrete and shall be so constructed that metal may be removed without undue injury to the surface from chipping or spalling, Such devices, when removed, shall leave a smooth opening in the concrete surface not larger than seven-eighths inch in diameter. Burning off of rods, bolts, or ties will not be permitted, Metal ties shall be held in place by devices attached to wales. Each device shall be capable of developing the drangth of' the tie. Pipe anreaders will not be permitted, Metal and wooden spreaders which are separated from the forms shall, be wired to topcfform and shall be entirely removed as the ,►onorete is being placed, Whore wire ties are permitted, all wires shall be out, back at least one inch from the face of the concrete with a sharp chisel or nippers, The use of metal farm ties of a type that are encased in paper or other material to allow the removal of the complete tie, leaving a hole through the oonorete struoture, will not be permitted in the construction of water bearing walls, 5, et ins and Dili Foo i The facing of all forms shall be treated with a suitable form oil before concrete is placed, In hot weather, both sides of the face forms may be required to be treated with oil to prevent warping and to secure tight ,points, The oil shall be applied before the reinforcement is placed, The oil used for this purpose shall be a light clear oil which will not discolor or otherwise injuriously affect the con. orete surface or delay or impair ours operations. In surfaces of forms which will come in oortaot with theconcrete lshall be wetted immediately before the conorete is placed, 104-? 6, Me_t1 Ormgr The foregoing speoifications for "f'ormal' as regards design, mortar-tightness, filleted oornera, beveled pro,jeotions, bracing alignment, removel, re-use, oiling, and wetting shall apply equally to metal forms. The metal used for forms shall be of such thickness that the forms will remain true to attapo. All bolt and rivot heads on the facing aides shall be oountorsunk. Clamps, pins, or other oonneoti,ag devices shall be designed to hold the forms rigidly together and to allow removal w1bhout injury to the concrete. Metal forms which do not presont a smooth surface or line up proporly shall not be used. Spooial care shall be exercised to keep metal free fromrust, aresiso, or other foreign material such as will tend to discolor the concrete, J. L "aiinA_b l r9 WOJt Reinforoement in concrete atruotures shall be carefully and aoouratel~ placed and rigidly supported as provided in the Item "Rein£oro-Ing Steel'. K•.:.~.a~.f~,fi:~f9•r.~.tft~ 1. ~ne,~al Requirements; a, r m ny„Qwj~duIMy The Contraotor shall notify the Engineer upon completion of various portions of the work required for placing concrete so that inspeoti.on may be made as early as is practicable. The Contractor shall also keep the Engineer informed regarding his antioi- pated oonarate placing schedule, Whon all itemr, have been found to be in order by the INngineer, including lines and grades, forme, reinforcing, inserts, piping, eleotrioal., plumbing and the Contractor's concreting materials and equipment;, the Engineer will then authorito the Contractor in writing to proceed, Concrete placed without, such authority will not be accepted unless by written exemption from the Engineer, Unless author- ized by the Engineer, no concrete shall be placed in any unit prior to the completion of the form work and tho plaoement of the reinforooment, No concrete shall be placed before the oom].,jletion of all adjacent operations which might prove detrimental to the oonorete, Whenever it is necessary to continue the mixing, placing, and. finishing of oonorete after the day. light hour9, the site of the work shvI l be brill'Lantly lighted so that ell operations * Plainly visible. In genoral, however, concrote placing shall be so regulated as to permit finishing operations to be completed in tho daylight hours, The Engineer reserve the right to order postpone- ment of the placing operations when, in his opinion, impending weather conditions may result in rainfall or low temperatures which will impair the quality of the finished work. In case rainfall should occur after placing operations are started, the Contraotor ahall provide ample oovering to proteot the work. In oase of drop in temperature, the provisions set forth in paragvaph K..21 hereof, "Placing Concrete in Cold Weather" shall be applied, The sequenoe of placing oonorete shall be as provided for In Section C, hereof, "General Construction Requirements". The operation of depositing and oompaoting the concrete shall be conducted so as to form a 104-. ; compact, dense, impervious mass of uniform texture which shall show amooth faces on all surfaces. The placing shall be so regulated that the pressures caused by ton plastic concrete shall not exceed the loads used in the design of foi,s. b,andliraa~„nn9 Tram~;grtatigq~ Chutes, troughs, or pipoc used as aide in placing concrete shall be arranged and used cc that tho ingredients of the concrete will not be uoparated and they shall be motal or octal-lined, when steep slopes are necessary, the chutes shall be equipped with baffle boards or be made in short lengths that reverse the direction of movement. Open troughs and chutes shall extend, if neeessery, down inside tho forms or through holes left in the forms, and the ends of such chutes shall terminate in verbioal downspouts. Allchutee, troughs, and pipes shall be kept clean and free from coatings of hardened concrete by a thorough flushing with water before and after placement. Water used for flushing shall be dis- charged clear of the concrete in place, The use of chutes in excess of 35 feet total length for conveying concrete will not be permitted except by specific authorization from the Engineer, Non-agitating trucks shall be used only when authorized by the Spinner with due consideration of the length of haul, roughness of roadsi and shape of truck bodies proposed, Pumping of concrete will be permitted, subject to approval of shipment by the ~ Engineer, The placing of concrete for floor slabs preferably shall be done from a mixing plant located off the structure, If the mixer plant is to be 'iodated on the structure, it shall not be placed on a ooetion of the slab which has been in place for a length of time less than that specified in paragraph 0-2, "aoneral Construction Requirements", of this Item, Carting or wheeling concrete batches on a completed conorets floor slab will not be permitted until the slab has aged at least four during days, Unless pneumatic tired oarts are used, the carte shall be wheeled on timber planking no that the loads and, impact will be distributed over the Blab, Curing operations shall not be interrupted for the purpose of wheeling concrete over finished slabs. Stockpiling of concrete aggregate or cement on floors will be permitted only when authorized by the Engineer, The storing of reinforcing or structural steel on completed slabs shall generally be avoided, and when permitted, such storage shall be limited to qua,ntitW and distribution as authorized by the Engineer. c, 111nai The method and manner of placing sh^ll be such as to avoid the possibility of segregation or separation of the aggregate or the displacement of the reinforcement. In thin walls, drop chutes of rubber or metal shall be used, The spattering of forms or reinforcement bars shall be prevented if the concrete so spattered will dry or harden befog, being incorporated in the mass, Each part of the forms shall be filled by depositing concrete directly as near its final position as possible, The coarse aggregate shall be worked back from the face and the concrete forced under and around the 104-9 reinforcement bare without displacing them. Depositing large quantities at one paint in the forms and running or working it along the forms will not be allowed. After the concrete has taken initial set, the forms will not be jarred, or any strain placed on pro,jooting roinforooment, Where the Contractor's operations involve the plaoinp, of oonoroto from above, that is, directly into an exoavatod area or, through tho completed forms, particularly in the case of walls, piers, oolumns, and similar structures, all oonoroto so placed shall be deposited through vertionl drop chutes of rubber or metal of satisfactory size, Drop chutes shall be made in sections or provided in several lengths so that the outlet may bo adjusted to proper height; during placing operations. R~riorete shall not be dropped free more than five (5') feet, Concrete shall be placed in continuous horizontal layers approximately 12 inches in thiokness. Each layor shall be soft when a ne•4 layer is placed upon it, and unless otherwise specified herein or by the Engineer, not more than one hour shall elapse between the placing of successive layers of concrete in any portion of the structures included in continuous placement, The Contractor should avoid additional con. struotion Joints other than those shown on the Plans by placing required portions of piers, walls, or ouperstruatures in one continuous operation, Foreign matter of any kind shrill not be permitted to aocumulate inside the forms, and openings in forms neoessary for removal of same shall be pro- vided. If excessive bleeding nausea water to form on the surface of the oonorete in tall forms the mix shall be made stiffer to reduce the bleeding, In tall walls the concrete shall be placed to a point about a foot below the top of the wall, or the bottom of any slab or beam to be poured monolithically with the wall, and at least one hour, or more if specified by the lsrigineer, shall be allowed for aottli.ng. Concreting should then be resumed before set occurs to avoid the requiremonts of a ,joint. If the slab is thin, a reduction of coarse aggregate size may be required, and the form shall be overfilled and the excess concrete soreoded off after partial stiffening, d. Consolidations Each layer of concrete sh'All be well compacted and the mortar flush o the surface of the forms by ,continuous working with concrete spading implements andmmeohanical vibrators if an approved type. Vibrators of the type which operate by attachment to forms will be permitted only when immersion type vibrators cannot be used due to inacoesi- bility, All vibrators shall operate at speeds of not less than 7000 revolu. tions per minute, The vibrators shall be applied to the concrete immediately after deposit and shall be moved throughout the mass, through the layer of oonorote just placed, and several inches into the plastic layer below, thoroughly working the concrete around the reinforcement, embedded fixtures, and Into the corners and angles of the forms until the oonorote is thoroughly compacted. Mechanical vibrators shall not be operated so that they will penetrate ar disturb layers placed previously which have become partially set or hardened, and they shall not be used to aid the flow of oonorete laterally. The vibration shall, be of sufficient duration to aocomplish thorough compaction and complete embedment of reinforcement and fixtures, but shall not be done to an extent that will cause segregation. 104-10 i Vibratore shall be kept constantly moving in the concrete and shall be applied vertically at points uniformly spaced not farther apart than the radius over which the vibrator is visibly effeotivwa, The vibrator shall not be hold in one location longer than is required to produce a liquified appearance on the surfu A sufficient number of vibrators (powered pneumatically or oloot.,. ally) shall be used to provide, one for each ten cubic yards of concrete per hour being placed. At least one vibrator which may, be of the gasoline powerod type shall be immediately available for regular service or standby service for each two vibrators in service. All vibrators intended for rogular service or standby service will be checked and operated prior to the beginning of the conoreti,ijg operations. Vibration shall be supplemen`.ed by hand spading if necessary to ineure the flushing of mortar to the surface of all forms. G& Before plaoing concrete, care shall be taken to determine that all embedded iteme are firmly and seourely fastened in place as indicated in the drawings or required by the Engineer. All em bedded itoms shall be thoroughly clean and free of oil and other foreign material. Anchor bolts shall be set to exact locations by the use of suitable anchor bolt sleeves, or as otherwise shown on the flans, 2,i-.4e,.~,.4old Weathers No oonarete shall be placed when the atmospherio temperature is at or bolow 40 degrees F. (taken in the shade away from artificial heat) unless permission to do so is given in writing by the Engineer. When such permission is given, or in cases where the temperature drops below 40 degrees F. after the concreting opora- tions have been started, the Contractor shall furnish sufficient canvas and framework or other typo of housing to enclose and protect the structure in such a way that the air around the forms and fresh concrete can be kept at a temperature not less then % degrees F, for a period of five days after the oonoreto is placed for normal conorete, and for three days for high. early-strength concrete. Sufficient heating apparatus such as stovos, salamanders, or oteam equipment and fuel to furnish all required Nat shall be supplied. The treatment of mixing water and aggregates used it mixing concrete shall be as specified in "Concrete for Structures". It is under- stood that the Contractor is responsible for the protection of concrete placed under any and all weather conditions. Permission given by the Engineer to plaoo concrete during freszing weather will in no way rcliove the Contractor of the responsibility for satisfactory results. Should con- orete placed under such conditions prove unsatisfaotory, it shall be removed and replaoed. 3. I?laainn Con.r~,t. jjMAta l Concrete shall be deposited in water only when speoified on the Plans or with the permission of the Engineer, The forms, oofferdame, or caissons shall be sufficiently tight to prevent any water current passing through the space in which the concrete is being deposited, Pumping will not be permitted while the concrete is being placed, nor until it has set for at least 36 hours, The concrete 104-11 shall be carefully placed in a compact mass by means of a tremie, closed bottom dumping bucket, or other approved method that dons not permit the concrete to fall through the water without adequate protection, The con- orete shall not be disturbed alter being deposited, I)opositing shs:ll be regulated to maintain approximately horizontal surfaoon at all times. When a tromie is used, it shall consist of a tube having, a diameter of not more than ten inches, constructed in sections having watertight connections. The means of supporting the tremie shall permit the movoment of the dis- charge end over the entire top surface of the work and shall permit the tromie to be rapidly lowered when necessary to choke off or retard the flow. The number of times it is nooeseary to shift the looation of the tremie, for any continuous placement of concrete, shall be holm to a minimum, During the placing of concrete, the tremie tube shall be kept full to the bottom of the hopper, When a batch is dumped into the hopper, the tremie shall be slightly raised, but not out of the concrete at the bottom, until the batch discharges to the level of the bottom of the hopper. The flow shall then be stopped by lowering the tremie, The placing operations shall be continuous until the work is completod, When concrete is placed by means of a bottom-dump bucket, the bucket shall have a capacity of not less than one-half cubic yard, The buokbt shall be lowered gradually and carefully until it rests upon the concrete already placed. It shall than be raised very slowly during the discharge travel; the intent being to maintain, as nearly as possible, still water at the point of discharge and to avoid agitating the mixture. 4. l lacing CotlgrJ SIQ t Concrete in oolumns p walls, and deep beanie or girders shall be allowed to stand for at least one hour, or more if specified by the Engineer, to permit full settlement due to consolidation before concrete is placed in the slabs they are, to support, Haunches are considered as part of the slab and shall be placed integrally with them, The surfaces and materiel over whioh a slab placed on the ground is to be poured in stripe, the widths of the strips, unless otherwise specified or shown, shall be ouch that tho concrete in any nri strip will not be allowed to lie in place for more than one hour be! to the adjacent strips are placed. Immediately before placing oonorete, ie cushion to receive concrete shall be dampened to prevent too rapid absorption of moisture from the concrete. Concroto shall be of comparatively dry consistency and shall receive the finish hereinafter specified, 5. ll~ng„ocrote in Fouudationsi Concrete shall not be placed in footings until the depth and character of the foundation has been inspected by the Engineer and permission has been given to prooosd. The plating of oonorete bases above seal oourses will be permitted after the forma ore free from water and the seal course cleaned. Any necessary pumping or bailing during the concreting operations shall be done from a suitable sump located outside the forme, Concrete in deep foundations shall be placed in a manner that will avoid separation of the aggregates or dis- placement of the reinforoument, Suitable chutes or vertical pi;vs shall 104-12 be provided. When footings can be placed in dry foundation pits without use of oofferdams or caissons, forms may be omitted, if desired by the Contractor and approved by the Engineer, and the entire excavation filled with concrete to the elevation of the top of footing. Where this procedure is followed, no measurement for payment for "Extra Concrete" will be made for oonorete placed outside of the footing dimensions shown on the Plans, L. Curing Concrete: 1, ~e~4~'~1.12enuiromargs Careful attention shall be given to the proper curing of all concrete ir. structures. Curing mn.thods shall. be of the following typos and shall be applicable under the indicated conditions: as Ilg~yrane Gtr 4: Membrane curing may be used on surfao38 not to receive a rubbed "inish, vertical or sloped surfaces on which additional concrete is not to bo directly applied, and surfaces after receiving first rubbing with go, 16 oarborundum stoneo b, ~atton MgttU : Cotton mat oaring shall be used and membrane curing is prohibited on surfaoes to receive first rubbing with No. 3.6 oarborundum s Wnel surfaces to be painted or to which bituminous watorproof- ing is to be applied, and contact areas of construction joints. e. Qotton Mat or Waterproofed Panar Curing: Cotton mat or water- proofed paper curing all be used and membrane curing is prohibited on slabs on which additional concrete, mortar, or torraao or other flooring is to be directly applied and oc slabs which will receive liquid concrete floor hardener. d. Cotton-Mat-or Watgroroofed I'ayor_or McMbr o Curinas Slabs on which additional concrete, mortar, or terrazo is not be be directly applied may be cured by use of ootton mats, waterproofed paper, or by membrane curing, except that cotton mat curing may be required on floor slabs of buildings and basins whsre weather oonditions are such that rapid lops of moisture would result by using membrane curing. 2, nnatt_ i„f Curi~q~I All concrete shall be cured for a period of srven consooutivo days. In cold weather, when curing may be retarded, this period shall be extended a,, directed by the Engineer. 3. Material and Usage; a, 00 ~ga mate! Cotton mats shall. uniformly contain at least threo-fourthe of a pound of cotton filler per square yard of mat, shall, have covering cloth weighing not less than six ounces per square yard, shall be of convenient size for handling, and shall have 6-inoh wide peripheral flaps for overlaps. The mats shall be in contact with the entire oonorete surface and shall be kept moist. for the specified curing period. 1.04_13 b, Waterarooffe laaper: Waterproofed paper for curing slabs shall be non-staining and strong enough to withstand the wind and abrasive notion of workmen walking over it. The typo and quality of the paper shall be 9ub,jeot to the Engineers approval. Cemented ;joints shall be lapped at least six inches and o,erlapu of blankets shall, be at loast 12 inches and shall be securely weighed to form a closed ,joint. Holes torn in the blankets while in use shall be patched immediately, and in locations where pedestrian traffic is unavoidable, Puitable walkways shall be provided to protect the paper o, Membrane Curi~inpound: Membrane curing compound shall be a resin base S h Rght red tint with fugitivo dye, ready for use other than stirring, and of such composition that it will remain intact 2g a sealing coat for 28 dayo. An acceptable compound shall have such coaling qualities that the moisture loss from test specimens shall not be more than three and one-half (3-1/2%) per cent when tested in aocordanco with Method of Test for Water Retention Efficiency of Methods for Curing Concrete A.S.M. Designation C-1169 when the sealing compound is applied at a coverage of one hundred lend fifty square feet per gallon. The sealing compound shall be sprayod on, using presevre.tank type spraying equipment, and the sealing compound shall be thoroughly mixed just before and iUVing application by either a power-operated mechanical stirrer or comprogsed air to the satiotaotion of the Engineer. Curing compound shall be strained through gasoline strainer as it is poured into spraying equipment. Applica. tion of the seal coat shall be on a moist surfaoe, shall be uniform as indicated by the oolor, and shall be at the rate of one gallon per 150 square feet, applied in one coat on horizontal surfaces as chocked by area of surface and amount of material used. On vortical surfaces curing compound shall be applied uniformly in two coats at the rate of 300 square f+ot per gallon. The application of the curing compound shall follow immediately after removal of forms and preparation of concrete surface as specified. Within thirty minutes after form removal on any surface to be oured by I membrane, patching shall be commenced or V e surface shall be kept wet by I sprinkling until patching is commenced. Curing compound shall be applied immediately after any patch is made unless other curing is provided. Seal coats shall remain in place and to protected against abrasive action for a period of 28 days if in an area where 14-day ouring is required and 14 days if in an area whore 7-day curing is requi.rod, Seal ooats on slabs shall be protected by a ono-inch layer of sand or earth cr by other approved means, The protective coating shall, not be placed sooner than 24 hours after the seal coat has been applied. Any damages to the membrane coating within the period of time noted abovo shall be repaired immediately by a liberal application of the compound. 14. Bomcval of Dorms and F'a7s.,_ewrk: Except as hereinafter provided, forms for surfaces required to be rubbed shall be removed when the concrete is placed, Norms shall be removed from surfaces requiring a rubbed finish only as rapidly as tho rubbing operation can progress, in order to permit more rapid and more sati.s.faotory rubbing while tho surface is moist and 104-14 relatively soft. Fortes and falsework for the portions of structures which do not require a rubbed surface finish may be removed when the concrete has aged for the minimum numbor of curing days set forth in the following tablet Forms and falsework under slabs, beams or girders q days Forms and falsework under beams of frame bents 7 days Forms for walls, oolumns and sides of piers 2 days The '`erm "during-day" will be interpreted as any calendar day on which the temperature is above 50° F „ for at least 19 hours, Colder days may be counted if satisfactory provision is made to maintain the air temperature adjacent to the concrete oonstantly above 50° Y,, throughout the entire day. In continued cold weather, when artificial heat is not provided, the Engineer may permit the removal of forme and falsework at the end of a period of calendar days equal, to twice the number of curing days stated in the above table. Test specimens may be made at the option of the Engineer for the purpose of determining a satisfactory time for form and fa?.nework removal in oold weather, and when tests made on specimens cured urOnr like conditions to the curing of the structure indicate that strengths equivalent to the 7-day strengths as given in Item, "Concrete for Structures" )Lavo been attained, the forms and falsework may be removed, In no event shall this removal be done in less time than the curing periods given in the table above, Forms for the portions of slabs that cantilever more than one foot beyond the outside beams shall not be removed in less than four curing days, No Defective Works Any defective work discovered after the forms have boon removed shall be repaired immediately, If the surface of the concrete is bulged, uneven, or shows excess honeycombing, or form marks, whioh defU0,131 in the opinion of the Engineer, cannot be repaired satisfactorily, the entire section shall be removed and replaced, lit repairing honeycombed areas, all loose material shall be removed before the repair work in started. 0, i4, c~tollthio Ab Finish: All floor slabaf, platforms, and other upper surfaoes, except as speoified on the drawings, shall be finished mono- lithioally. Slabs, onerally,shall be level, Where drains occur, slabs shall be sloped one T') inoh to drain within a radius of five (50) foot or shall be pitched thereto as indioated on the Plans. Soreeds shall be set accurately prior to placing concrete and shall be suffioiently rigid to withstand the impact of tho conovete while being placed or finished, Excess material in forms shall be struck off with template or screed, working the coarse aggregate below the mortar surface. The use of mortar topping will not be permitted. Aff,er concrete has been struck off, the surfaoo shall be thoroughly worked and floated with a wooden, canvas or cork float. After floating and before the finish has set, all surfaces, except sidewalks so finished and surfaoos to be trowel finished, shall be lightly stippled with a fine brush to remove the surface cement film, leaving a fine-grained sanded texture, Where a trowelled floor finish is indicated on the plans, the concrete shall be tamped thoroughly to force the coarse io4-15 I aggregate away from the surface, which shall then be floated and trowelled with a steel trowel, to a true hard surface. Stair breads shall be given a wood float finish. No lleaeting" of floor surfaous with dry materials will be permitted. Edges at all expansion joints shall be rounded with a suitable jointing or edging tool, A liquid floor hardener shall be used if indicated on the drawings and shall be"lupidolith", manufactured by L. Sonneborn and Sons, used after concrete has been finished, and shall be applied in three applications in strict aooordanoe with manufacturer's spoeifications. P, Finiehinns All concrete shall be finished as specified hereinafter, All patching, ropairing, finishing, and cleaning shall follow immediately after the removal of forms, Zt1j,i. a 'Pie 2, ff , Ui After the tie rods are broken back or removed, the holes shall be filled solid with cement mortar, similar to that used in oonorete. The mortar shall be as dry as possible and carefully packed into the holes in small quantities. After the holes are completely filled, all excess mortar shall be struck off flush and the surface finished in such a manner as to render the filled hole as inconspicuous as possible. If these patches appear to be darker than the other surface of the concrete, white cement shall be used in the mortar as required, k. ' iitgi Might honeycomb and mirror defects in all oo.icrete surfaces I shall be patched with cement mortar mixed in the same proportions of cement and fine aggregate as the original concrete. finished surfauas containing sand streaks or voids will not be aoceptable, and shall not be plastered over, Such defective concrete shall be repaired by cutting ou± the unsatis. factory material and replacing it with dry pack mortar whi.rh !'~0'1 be securely koye,l and bonded to the old concrete and finished in such a manner as to render the jointing as inconspicuous as possible. This concrete shall be drier than the regular mixture and shall be thoroughly tamped into place, Areas in hydraulic structures in which honeycomb occurs sufficient to cause leakage through the oonorete, shall have all loose and unoemented material thoroughly removed until sound concrete is exposed and the recess shall be shaped to key the new concrete in plaoo. Each defective area shall be out baok with pneumatic chipping tool as deep as the defect extends and in no case less than one inch. The holes shell then be slushed with neat cement slush and worked into l.he surface with stiff brush and then filled to within three-fourths inch of the surfaoo %d th approved non-shrink mortaar as directed by the Pngineor and the romainder of the hole filled with regular dry pack mortar. The surfaoe of such patches shall then be finished as above speoifiod. All dry pack mortar shall be driven into place with suitable hammer and wooden blooks. All patches which will be continuously exposed to water shall be made with non-shrinking grout in accordance with "Conoreto for Structures", of these specifications. Non-shrinking grout will not be used where it would be subject to observation, S, [tub-Finished Plynnond Surfan t The following exposed vertical concrete surfaces shall be given a rubbed fini.sht a. Tho exposed surfaces of all outside walls to a point two (21) feet below the final ground line. b. The inside wall surfaces of all basins and manholes to two (21) feet below minimum water level. o. The entire wall surface of all basin influont and effluent channels, d. Vertical sides of all basin walkways. e. All pump bapvs, concrete valve and pipe supports, and other miscellaneous exposed concrete surfaces. The rubbing operation shall be in accordance with the following pro- visionst As soon as forms are removed, all necessary pointing shall be done. When the pointing has set sufficiently to permit it, all surfaces requiring surface finish shall be wet with a brush and given a first surface rubbing with a No. 16 carborundum stone or an abrasive of equal quality, The rate of removal of forms shall be determined by the rate of the completed rubbing, The rvhh'n,• shall be continued sufficiently to bring the surface to a paste, to remove all form marks and pro,jeotions, and to produce a smooth dense surface without pits or irregularities. The use of emeut to form a surface paste will not bu pormi_ tt,~d, The ma aria which has been ground to a paste in this process shall be carefully epread or brushed uniformly overt-'-.,. surface and Allowed to take a reset, In general, ohamfered corners shall not be rubbeI in the first surface rubbing. During the process of conditioning the completed structure for final aoeeptanee, the surfaces of the entire structure requiring finish shall be cleaned free from drip marks and discolorationa and shall be given a final finish rubbing with a Ho. 30 oarborundum atone or an abrasive of equal quality. On completion of this rubbing, the surface shall be neatly stripped with a brush and the mortar on the surface shall be allowed to take a reset. The surface shall then be washed down with clean water, The entire structuro shall be left with a clean, neat and uniform appearing finish and shall be uniform in color, T. Pi Oa le Mall an Coi11n„mt, The entire surrnoo of the pipe gallery walls and sail ng eha 1 painted as specified in the Painting section of those 9pooifieationo. All tie-holds shall be filled As specified in paragraph "Filling Tie Holes", and all defects repaired as specified in paragraph "Patohkng" above. In addition, all form marks, fins, and rough edges shall be rub1bed smooth as described above, And all surfaces ohnll be left in a parfootly smooth condition for application of the paint, Rough Pi haAll ve concrete for which no special finish is indiostod or required shall all ties removed and all holes filled as specified in paragraph "Filling Tie Holes", and all defects ropnired as specified in paragraph "Patching" Above, All fins and rough edges chal.l be removed, 104-1? V. G, routings 1, Mixturoai The following mixtures, proportioned by weight as specified, shall, be used for grouting operations: P, For_:Settinp New Cnuinmvnts Where clearance ie one inch or less in thioknessr One part portland cement One part olran, sharp Sand One part non-shrinking grout aggregate Not more than 5-1/2 gallons of water per sack of cement Where clearance is one inch or over in thickness: One part porU:.: nd cement One part olean, sharp eao4 One and one-half parts of 1/4" pea gravel One part non-shrinking grout aggregate Not more than 6 gallons of water per Saek of cement b, Pry Pac ortarr pry pack mortar shall bo made with appropriate cement and Wrogeto t oroughly mixed and then wetted by light sprinkling while mixing continues. Only enough water shall be added so that when the mixture is compressed in the hand, a cohesive mass will be produced. All dry pack mortar must be driven firmly into place with hammer and wooden blocks, c. Others Orout used for general purposes shall be a mixture of one part of port and cement and two parts of sand, Where the space to be groutod is less than one inch thiok, and due to inaccessibility it is impossible to tamp the grout, a more flui~ consistency is required and a 1 to 1 mix shall be used. In grouting large 1.+,pe in place and similar work where the apace to be filled with grout is largo, the concrete mixture used in the original concrete should go used, The stiffer the mixture at time of placing, the leas shrinkage= therefore, tamped grout and grout produced by prolonged or delayed mixing will be used whore possible, 2, Procodurest The tops of all foundations to receive grout shall be free from laitance and all loose particles. All bol+, holep shall be blown out. Any grease, oil, or organic matter which may 'ao on tha surface shall be removed, and if removal proves impossible such contaminated concrete shall bo chipped away until clean concrete surface is exposed. Chipping concrete in order to obtain a firmer bond with the grout shall be required only when specified elsewhere in these Specifications, or apeci£ioally ordered by the ringinesr. Before applying grout, grout forms shall be set true, levol, tight and well braced. The forms shall be caulked, anchored, and bracer] to prevent leakage and movement of the grout. gquipmorit to be groutod in place shall be assembled before grouting, Basp platea and other ,LOls-10 items to be embedded in grout shall be clean and free from any deleterious matter. Items tc to grouted shall be set in final poultion, true to accurate line and level. All shims used for setting, other than steel shims, shall be removed from the grout after the grout has fully set; extreme care shall be exercised to prevent the disturbance of the iteras grouted in place. Grout destrdyed in order to remove shims shall be roplooed with like material to the satisfaction of the Cngineer. The area to receive grout shall first be saturated with water. Puddles of water shall be removed from the prepared slab. A mixture of neat cement mortar shall be applied as a slush coat with a stiff brush, scrubbing into edges and sides of the conorote foundation and on the aides and bottom of the base plate or item to be set, The grout mixture shall be turned over, while still dry, enough times to insure the even distribution of aggregate and cement, and then enough clean water shall be added to make the mixture placeable. Caution shall.. be observed in all oases to avoid an excess of water. Grout shall be well rodded in place, the entire area being evenly filled$ well tamped, and all voids and holes filled. Whers clearance is over three inohes, the forms shall be half filled, the grout well tamped into sides and under base plates and edges, and then the balance of the form filled# The grout shal'l' be worked and rodded continuously while it is being placed, with partAcular care being taken to get the mixture firmly packed beneath bed plates. Grout containing non-ahrinking grout aggregate shall be out off vertically below the outside edge of the base of equipment or base plate and normal cement mortar used to cover the edge of the grout. The Contractor shall wood-float the exposed grouted area and whei:, the grout has get fufficiently, the surface shall be given a steel trowelling._ In general, exposed areas shall bo sloped away from a machine base oarofully to avoid a featheredge grout. After about three to six hours at norms), drying temperature, when the finished surface cannot be dented with thumb- nail pressure, the surface shall be wet down and covered with damp sawdust, sand, heavy paper, or curing compound to protect the exposed area from dl*;ing out too rapidly. Items embedded in grout shall not be subjected to str9ss, nor shall machinery be placed in operation until 36 hou,,,s at normal drying temperature has been allowed for the full setting of thri grout unless specifically directed otherwise by the Engineer. END OF ITEM 104-19 ITLt RB TNI ORCTN4 5I EL 00- A. Aescrinttiiont This Item contains detail specifications for furnishing reinforoing Steel of the tyro, si.zei and quantity deeigned for use in structures as shown on the Plans and in accordance with these roquire- ments. B. Mate ials: All bar reinforcement shall be open hearth new billet steel of intermediate grado ooneruto reinforcement bars, If, steel other than American manufactured is propose(I, the Contractor will be required to have tests conducted to show eoiq)lianoe with those speoifiontiona. These tests shall be made by an indopendont laboratory selected by the Ownor, and the exponan shtill be paid by this Contractor. New billet stool, nhall, conform to the requirements of the latest Standard ,3,ncifioation 1'nr Billot-Stool Concrete Itoinforoomont ;?ars, A,O.T,hi, Dosignntion A_150 1 Unless otherwise shown on the Plana, all reinforcing bare shall be deformed bars, and shall conform to the requirements of the latest issue of the Tentative Speoifieatiorns for Minimum Requirements for the Deformation oi~ Deformed Steel. Bars for Concrete Reinforoement, A.S.T.H. UesignaW on A-305. Wire for fabric reinforcement ehall be cold-drawn from rods hot rolled from open hearth billets. Wire shall conform to the requirements of the latest Standard Specification for Drawn Ifire for Concrete Roin- forcemont, A.S.T,M, Designation A-82. The nominal aizo and area and the theoretical weight of reinforcing steel bars covered by this specificntion are as follows Dar Designation Nom'.nal Diameter Nominal Area Weight Number ('i'nches) (Square Inches) (Per Un. rt.j 2 .250 .049 .167 •)75 .110 .376 -500 1196 ,668 6 6 -7525 ,442 i; 0z 7 ,875 6ol 2.044 8 11000 .785 2,670 9 1.128 11000 3.400 10 1.270 1.266 41303 11 1.410 1.563 5,313 105-1 14hen wire is ordered by gauge numbers, thu following relation between number and diamotor, in inches, shall apply: Equivalent Fquivaler►t Caugo No. Diameter Gauge No. Diono ter fne1TsJ_. t;lpahos 0 0.3065 a 0.1620 ?.Ei30 2 .2625 10 .1350 3 ~ 2437 ].l .1205 .2253 12 ,1055 5 .2070 13 .0915 6 •1920 14 10600 7 ,1770 C, no-inforoing Steel Sc b ul.os! Prior to the delivery of any rein. forcing steel to the site of -he project, the Contractor shall submit to the Engineer complete schedules for all reinfo :,ing steel to be used in the work, showing the looation, number of bare, length and bending diagrams for all bars. The submission of such schedules shall not relieve the Contractor from furnishing all of the reinforoe►ment. required for the construction and completion of the project in full accordance with the requirements of the contract documents. D. Bendin s The reinforcement shall. be bent cold to shapes indicated on th© Plans. All bending of hard grade and rail stool bars shall be done in the shop, Bending; of other grades shall. preferably be done in the chop. Bends shall be true to the shapes indicated, and irregularities in bending shall be cause for rejection, Unless otherwise shown on the flans, bonds for stirrups and ties shall be made around a pin having a diameter of not loss than two (2) times the minimum thickness of the bare. E St. orinat Steel reinforcement shall be atored above the surface of Ue ground upon platforms, skids, or other supports and shall be pro- tected as far as practicable from mechanical injury and surface deter.. ioration caused by exposure to conditions producing rust. When placed in the work, it shall be free from dirt, scale, dust,, paint, oil, or other foreign material, F. S liceat 1. Las .Snlicosi No splicing of bars, except when shown on the Plans, will be permitted without the written approval of the Engineer. Approval of bar bending schedules or of placing drawings will constitute written approval. Splines which are permitted shall have a length of not lose than 30 times the diameter of the reinforcement, but not less than 12 inrrihos, except in tho case of welded splices, and shall be well distributed or else located at points of low tensile abreast The clear 105.. distance between bars shall. apply to the clear distance between a con- tact splice and adjacent contact splices or bars. The bars shall be rightly clamped or wired at all splices in a manner approved by the Engineer. Shoete of wire mesh or fabric shall overlap each other sufficiently to maintain a uniform strength and aha'l.l be securely fastened at the onds and edges. 2. Wolde S ]aoest Where shown on the Plans or required by the provisions of this item or ot!sar pertinent specifications, welded bar splices shall W used. In general, such splices shall be so located that not, more than two bars in any twelve..inoh width of the member shall be spliced at any one point. Bars to be welded shall be placed side by side and a fillet weld made on each side for the full length of the splice. 0. Placing: Steel reinforcement shall be placed in the exact position as shown on the Plane and held securely in place during the placing of the concrete. The minimum clear distance between bars shall be two times the bar diameter. Vertical stirrups shall always pass around the main tension members and be securely attaohed thereto. The rein- forcing steel in all concrete walls shall be spaced its proper distance from the faoe of the forma, as shown on the drawings, by means of approved galvanized metal spacers or approved precast mortar or con- crete blocks. Unless provision for welding is made, all reinforcing steel shall, be wired together at all intersections. Before any concrete is placed, nl.l mortar blocks to be used for holding steel in position adjacent to formed surfaces shall be cast in individual molds meeting the approval of the Zngineer and shall be cured by covering with wet burlap until agod sufficiently to be removed from the molds, at which time the blocks shall be immersed in water for the remainder of at least a tour-day curing{ period. The blocks shall, preferably be east with the sides beveled and in such manner that the size of the block increases away from the area to be placed against the forms, Blocks in the form of s frustum of a cone or pyramid are preferred. A suitable ti.e wire shall. be provided in each block, such wire to be used for anchoring the block to the steel in order to avoid displacement in placing the concrete, except in unusual oases, and when specifically otherwise authorized by the ,Engineer, the size of the surface to be placed adjacent to the forms shall not exceed two and one-half (2-1/2") inches squa.vo or tho equivalent thereof In cases where circular or rectangular areas are provided, Blooke shall be accurately cast to the thickness required, and the surface to be placed adjacent to the forme shall be a true plane free of surface imperfections. No concrete shall be deposited until the Engineer has inspected the placing of the reinforcing metal and given permission to place concrete, Box posed rein.. forcing intended for bonding with future extensions shall be effectively protected from corrosion. END Or, I'IT'M 10,-3 XTRhi NO A 1Q6_ ___MTAL FOB, STRUCTURE A Caneral: This item oovers all metals used in structures, Unless other- wiae specified, these metals shall conform to applicable specifications of the American Society for Testing Materials. When not covered by the above named specifications or by those speoifications, metals meeting the require- ments of some recognized and generally accepted specification and of standard oommeroial quality may be furnished subject to the approval of the Engineer. Standard specifications of A,B,T.M, referred to above shall be the latest standard or tentative standard specifications issued by the Society prior to reutsipt of bids, Do S u furs S t All atruotural steel shall conform to the requirements of the Standard Specifications for Structural Steel for Bridges and Buildings, A,S.T,M. Designation A-7i and supplemented Ly the followings 1. Rolled material shall be free from oracks, flaws, injurious ^Ame; laps, blisters, ragged and imperfect edges, and other defects. It shall have a smooth, uniform finish, and shall be straightened in the mill before shipment. 2, Material shall be free from loose mill soale, rust pits, or other defects affecting its strength and durability. 3. If steel other than American manufactured is proposed, the Contractor will be required to have tests conducted to show oomplianoe with these apeoi- fioations. These tests shall be made by an independent laboratory selected by the Owner and the expense shall be paid by this Contractor. C, Sheet Metal s Sheet metal shall conform to Standard Specifioations for Light Gage Structural Quality Flat tolled Carbon Steel A,S,T.M, Desig_ nation A-245 or A-246; or, Standard Specifications for Hot-Rolled Strip of Structural Quality A,34T.1,1, Designation A-303, of grade specified by the Engineer. D. Galvan9zi 1 Galvanizing of metal, other than sheet metal shall conform to the requirements of the Standard Specifications for Zinc) (Hot Galvanized) Coatings on Structural Steel Shapes, Plates, avid Bars and their products, A,S,T,M, Designation A-123. Articles fabricated from structural shapes, plates, and sheet metal to be galvanized after fabrication shall be galvanized in aooordanoe with A.S,T.14. Speoifioations Designation A-123- B. tiet Mats? (~~,vanj ds Galvanized shoots shall conform to the require- ments o~' Standard Specifications for Zino-Coated (Galvanized Iron or Steel Sheots; A,S.T.14, Designation A-930 or Zinc-Coated (Galvanized) Wrought Iron Shoots A.S.T.M. Designation A-163. k 222mrs Copper furnished under these specifications shall be free from flaws or surface imperfections and shall be manufactured from commercially pure, soft copper bars and shall be fti,Ily ductile and of soft temper conform- ing to Standard Speoif nation for Cop,)er Sheet Strip and Plate, A.S.TJ!, Designation B-152, G. j-Ws lead sheets shall bin uniform in thinkness, free from surface imper. feotione, and shall be manufactured from eommeroially pure, virgin pig lead, lob-1 it. 'WrAupht"lmt Wrought-iron shall conform to the requirements of the Standard Specifications for Refined Iron Dare, Wrought-Iron Plates or Welded Wrought-Iron Pipe, A.S.T.M. Designations A-41, A-42p and A-?2, respectively. Transverse ductility of wrought-iron plates shall not be loss than g per vent nor more than a per cent. d. ~t o e Rms and ,uQgr~,1 Manhole rings and covers shall be as detailed and indicated on the Plans. More not specifically called for on the Plans, ring and cover shall weigh approximately )00 pounds and be Trinity Valley Pattern He. 672, or approvod equals J. I4afF~o]Q tQl,~: Stops shall be similar, and equal, to Trinity Valley Manholo Stop Uo. 100. A Q i ce,: Ladders shall to provided where A= on the plans. Railing AM be standard weight 1-1/2-inoh wrought iron pies with flush ,joints. Rungs shall be one (1") inch wrought Now Laddera shall be as detailed on the Plans. Painting shall, be as specified in these Specifications, L. P.inwHavS @.Qj Pipe handrail8 shall be located as shown on the :'lane and shall be fabricated of 1,1/2-inch standard weight wrought iron pipe with all joints of the flush type. Memberi shall be neatly coped and con- tinuously welded at all junotions of posts and rails. The members shall be so assembled that the poets will be perfeotly plumb, longitudinal members and all intersections thereof lying in the same plane, in any section or run of railing. Up;righto shall be fastened to side of walkways by means of anchor bolts. Painting shall bs as specified in those Specifications, M. gakW Dr.AJj g: Subway grating shall be furnished at the locations shown on tho Planu. Types, bar sizes, and spacing shall be as noted. Orating shall be as manufactured by Irving Subway Orating Co., or an approved equal. Painting shall be as specified. END OF ITE14 106-z ITEM Np 10 41 BjL STR_,UC~TURE A. 0onoral;: This item covers tho fabrication and emotion of structural steel and other trtetala, which are used for steel. strunturoo or metal portions of structures except for those metal structuran covered by other specifications items. D. Ma to riaIs : The metal used for the various portions of the structures shall be~as specified under "Metal for Structures" of those specifioations. C. 118 br oationt fabrication, unless othorwiso stipulated in those epee .fioati.ono, shall oonform to A.M.C. Specification for the DosiM , Fabrication and Lroution of Structural Stool for Duildingo, latest re- vision. Shop drawings shall bu furnished for all structural steel. Open web steel ,joioto (bar ,joists) shall conform to the latest revision of the Steel Joist Trneti.tuto Specifications, D, Vg7.,U,iil: All welding operations, procences, equipmont, materials, worlcmanship, and qualtfieations shall conforrd to the requirements of the Code for Apo and One Welding in Building; ConuLrvotion of the American welding Sooi.oty. After cleaning, and within 24 hours after doposi.tinG, welds shall. be spot painted with a paint cont'orming to pertinent provision of the painting specifications. Qualifications of woldera w4,11 be roquirod, The Engineer will euporvino the qualifi- cation tent,, as prescribed in the American Walding Sooiaty Standard kttalifiraia,on Procoduro for `ti3 type of work roquired. The exivivIO of tho qualification tests sh:Il bo born by the Contractor, 1P. 3hop„ hint~,t Unions otherwloo provided, the shop paint and nppl,i- 0 tion ohall conform to tho requirements of A,x.,q,C. Standard Spcoii'i- cations, pdotFal protoctivo paint shall be Pittsburgh No. UC-3002 load chromate or Pittsburgh Mo. UC-32200 zing ohromat:o. F. Joist Accossori.,or All ;joists shall be furnish%d with tho necessary accessories as specified on tiro drawings or as required far propor In- stallation. Bridging shall be as specified on tho drawings And 0101 conform to the 110quiremento of rho Stool Joint Institute, 0 Zn is ti~tm an _Tosti,u The Owner reserves Vie right to inoiwut tiro z»atoria And worlfmarlshi.p In tho mill or in the shop. The Incpoctor ohall have the authority to reject any matt rial or work which door not moot the roc;uiromonto of those npccifionti.cns, Tit ct.so of dispute) the Contractor may appeal to the Engi.ncor who:iu do ision shall be final. 11' the scale woight of any member is morn than two (P%) percent loos titan the ccmputod weight) it may b"I ururtme for ro joot.'.oh. Tho acceptance of any mntori.al or finichod momborm by tho Nspoetor shall not W n bar to hair subsequent ro,jectiorm if, 1'ottnd dofootivo, Rejected material shall, be replaced promptly or mane good by the Contractor. 107-1 H, llarki.nr_and Shippina~,t All structural members shall be marked in aooordanco with the erection diopram. The markings shall be over the painted surface and in no oaso shall shop paint be left off in order to preserve markings on unpainted steel. Mitch markers shall be made, with paint. "sections weighing more than three (3) tons shall havo the weight marked thereon, Bolts and rivets of one length and diameter and loose nuts or washers of eaoh size shall be packed separately. Small parts and small paokages of bolts, washers, and nuts shall be shipped in boxes, orates, kegs, or barrels, but the gross weight of any package shall not exceed three hundred (300) pounds, A list and description of the contained material shall be, plainly marked on the outsi.do of each package, Anchor bolts, washers, and other anchorage or grillage materials shall be shipped in time to suit the roquiremonts of the masonry conatruotion. The loading, transportation, unloading and storing of structural ma+erial shall be coa,duoted so that the metal will be kept mean and froo from injury. I, l;ro~ot,io,~t s 1. Ceneralr Before starting work, the Contractor shall inform the Engineer fully as to the method of erection he proposes to use, tht, adequacy of which shall be subject to the approval of the Engineer. The approval. of the Engineer shall riot be considered as relieving the contractor of the rosponsibility for the safety and adequacy of his methods or equipment or from carrying out the work in full accordance with the plans and specifications. All erection shall Uo made in acoordarnco with the "Spopificationa for the Erection of Structural Stool for iuildings" published by the American Tnatituto of Steel Construation or latest revision thereof and Standard ,Spealfioations of the Stool Joist Institute. The Contractor shall furnish the falao. work and 1111 tools, mnolri.nery, and appliances necessary for the oxlse.. ditious handling of the work, 2. 04ttru._ otur it Stools All. structural steel shall, be, orected on rapidly as the prog!.oss of the goneral work will permit and shall bo set accuratoly to the linos and I-ovals established on the droaiings, Partioular care shall be taken to have the work porfootly plumb and true and ltavol boforo pormanent connootioner are anado rind the Contractor shall. maintain it so until it is olosod in. All field connections shall be, as shown on plans, Light drifting to draw up the parts of the eon. neetion will, be porrni;.tod but drifting; to match unfair holes will not be permitted, Any onlargoment of holes nr3anusary to make conneotions in the field shall be dune by reaming with a twist drill, care boing taken not to weaken the orfloining metal. Any seviou!i error in shop work which prevents the proper assembling; and fitting up of parts by a moderato amount of reaming shall be, corroatod by the fabricator. hrror-, shall be reported to the Engineer and his approval obtained on tho method of correction. All holef, ahal.l be punched or dril,lodl cutting Larch shall not be uaod. 1U7y2 3, Stool Joistai All stool joists shall be emoted in accordance with current "S anO rd Specifications for Steel Joist Construction" of the Steel Joist 7natitute and applicable provisions of the American Institute of Steel Construction. Bearing on masonry shall be not less than four (411) inches for open web joists unless othotwlise shown on Plans. Each Joist bearing on masonry shall be bedded in mortar and anchorod as shown on Plana, Joists supported on steel shall bear not less than 2-1/2 inches for open web joists. Steel. Moist anchor details shall be as shown on Plans. Bridging shall be of size and type as shown on plans and shall bF; installed immediately after joists are oreoted and prior to the application of any oonatruotion loads. The end joists of panels shall be braoed laterally by annhors or ties at each line of bridging. Each Joist must be strr,ight and vertically true before application of bridging, Particular care must be exercised in welding sub-purlins and other material to joint members to prevent burning or otherwise damaging the ,joists. Joists so damaged will be rejected and must be replaced by the Contractor. Particular care must be exercised throughout the erection of all joists to prevent lending, kinking, warping or other such damage. J. ant t Structural steel, steel joists and metal roof deok shall fie painted in accordance with the requirements of the section of these speoifioationa "Painting", END OF ITEM 107-3 ML LO- 108 . SC1 EP PIPr A" T.AVTNO A, Oene ralt This item oovern the furnishing and installing of pipe and matoriala for sewers and drains, including manholos and appurtonances. Sewers and drains shall be of the si.zea, types, and at locations and grades indicated on the drawings. This item doe,; not include sanitary and other drains from the buildings which are covered urvier "Plumbing" of these specifications. Excavation and backfill of trenches shall be as specified under the iter~i "Earthwork" of these specifications. B. P1ne at . Mate_ri&1tt~ 1. Pmt Pipe for sewers and drains shall be an indicated on the Plans. Unless otherwise shown, pipe shall conform to one of the following speciPioation pipea, as may be indioated+ a. 075 Standard Specifications for Reinforced Concrete Sower Pipe, b. 076 Standard Specifications for Reinforced Concrete CS~,'ve,rt Pipe 2, linter alr,r !minous compound for making boll and spigot joint e a all 'WOK" -ound as manufactured by the Atlas Mineral Produots Company, or 'ntite" as manufactured by the Pacific Plush 'lank Company, Joint packing for boll and spigot joints shall be of the best quality oakum, C, LA4Zn,t Sewer and drain pipe shall be laid to the rrado indicated on the drawings with the spigot end downstream. All iiipo shall be clean when placodt permissible defects shall, be placed in the top of tho line. Adjacent lengths of pipe shall re adjusted with reference to each other and blocking or wedging between hub and spigot will not be pa rmitted, Spigots sh0 l be adjusted in the bolls to give a uniform space all aroundl no connection shall be inadequate for caulking, Open ends of the pipe shall be temporarily closed with wood blocking at the end of a day's work, After the pipe has boon laid, a gasket of closely twisted, dry, untreated oakum, or an approved substitute of a sufficient diameter to center the spigot in the pipe socket, and in one piaco of sufficient length to pass around the spigot of the pipo and lap at the top, shall be placed in the ball and solidly rammed or caulked into tho annular space between the spigot and the socket in such a mannor ns to No against the shoulder of the socket. No part of tho gasket shall project into the pipe. No joint shall bo sealed until the gaskets in tho next two Joints in advance have boon inserted and caulked. Aftor the gasket has bean placed, the iv mainder of the space shall Lv Pilled with the la8~l specified joint filler. The compound shall he used according to the manufacturer's recommendation. 'Ponguo and groovo type pipe shall, be ncouratoly ].aid to the grado indicated with innor and outer annular space botwoon tongoo and gtroovo carefully filled with cement mortar, Wipe the joints to give a smooth inner grout surfaco flush with the barrel of pine. D. anholost Brick manholes shall be constructod at locations and in accordance with details shown on the drawings. Concrete shall be as specified under "Concrete for Structures" and reinforcing stool shall be as covorod under "Reinforcing Stool". All bri,cl, sh ll bo plastered on tho outside surfaces with mortar not loon than one-half (1/2") inch thick. Manh0 o inverts shall be constructed to maintain propor volocitios through tho manhole by moans oc ,split tilo, built up masonry, or con- crete. The shape of the invert section shall gonorall.y conform to the shape of the lower half of the pipe connecting into the manhole, Side branches shall be connected with as large a radius o;.* curvaturo an praotioal, All inverts shall be plastered, trowelled, and hrushod to a smooth clean finish. Concrete filling between the sower iteport and manhole sides shall bo flush with the top odfes of invert and shall slope up at a rate of two (211) inches to one (10) foot to the sides. END OF ITEM 103-2 ITEM b10, 109 » FOUNDATION CoR STirn STORAOf TANK A, (lronera.ls This item covera the construction of tho conoroto ring wall, gravel and sand foundation for tho 2000,000 eal7.on stool ground storage tank. The concrete ring<ral.l and in'lot..outlot pipe vaults shall Im con. structod of Class "A" coneroto and -hall be of the dimensiona as indicated on tho flans. The foundation shall ronsist of four (4-:) inches of gravel and two (2") inches of sand cushion. The steel tank will be constructed by othors. 13. L`xeavation, ub aVj All oxaavations and backfi.ll shall boas spooifivd o nowhere in thane Spec.' .ficatiorm, The sub-grade within the ring wall shall bo free of loose mat.orial, vegetation and ioota. The sub-grade shall be graded to a none shape with the center being approximately aovon and one-half (7.1/211) iichos highor than the outer edges. It is intended that drainage will be from the center out- wards. The sub grade shall be thoroughly compaotec', C, {travel-Haaei A four (4-") inch gravel base shall ho ploood according to the details shown on the Plans, gravel shall be placed and shall be compacted with a pieu:oiatic t.: ro roller. The base material shall be washed gravel or arushod stone and shall comply, in goneral, with the requiromonts for coarse aggregate, as spooi- fied under the Stem, "Concrete for Struovures". 'rho gradation shall be as followat 0 - 5 retained on a 1" screen, 2.5 - 75% retained on a 1/2" screen. 95 - 100% rotained on a 1/4" sarean. b. Sand Cushions The sand cushion shall be wanhod sand frith 90% paaairig a 1./ Mina t siavo and not more than 10'/, passing a No. 8 sieve. The DOW shall be placed and thoroughly compacts:;;. The nand cushion shall be cone shaped with a slope of one (111) inch in ton (101) foot from the center to the outer edge and shall be thoroughly compacted, 9 k'ipo Connoction~ta T~ ki This Contractor will be required to make the aonno---~na to the tankas shown on tho Plana. 'rho foundation shall, be tiamp2oted and the tank erected prior to making those connections. 13ND OF I'MoN 1091. ITEM NO, 110 ROP.g1FAY ANp PAnNfa' A. (Ioneralt This item cove ro the construction of Madway and paving of oxisting parking areas, all to lino, graflo, and typical nooti'-n indi. oated on tho drawings, D, l;"xi. stinu Park n& Areast The main parking area in front of the existing building, along with the parking area and portions of the existing roadway around the existing steel ground storage tank, are to be paved under this contract. These areas now have a 6" grave), and crushod stone flexible base, The main parking area, as shown on the .Plans, in to ba paved with 6" thick oonoreto laid on a 41+ flexible base, This depth will noeonsitate the removal of .a11 the existing base material plus approximately 2" to 3" of the existing subgrade in order to meet the finished grade requirements shown on the Plans, The existing base material may be salvaged and re-used for the base beneath the concrete paving, It is anticipated that most of the existing base material, on the roadway and parking area near the ground storage tank will have to be removed and re-shaped to obtain the required grade and degree of compaction. Additional base material shall be placed as required to obtain the required grade and thioknoss. All requirom nbs el;aoifi,ed hereinafter for new pavomant and roadway chall also apply to paving over these existing araae, C. Ron a 3 oavatio and Embankments Roadway excavation shall consist of a 1 required excavat on for con truotion of plant roadways. All exoa- vation shall be "unolasslfied", All excavated materials shall be properly utilized or disposed of. All embankments shall be constructed of suitable materials and shall be placed in successive horizontal layers of not more then eight (811) inohen in depth, loose measuromont, for the full width of the ombankn* nt, No successive layor shall bo placed until the layer under construction has boon thoroughly bladed and rolled to the satisfaction of the Engineer. D. rlaxii~l.o i3aso Coursot The Contractor shall, conatrt, ~t a flexible base course for all roadway consisting of dither Crushed 9tono or Pit-stun Oravol, If Crushed dtono base oourne i.o used the depth shall be 6111 if Pit-Run Oravel base oourao is placed the depth shell be n", The base course for concrete paved parking area shall be 4" depth of either of the above materials, (1) Cgrushe 5tono The materials shall be obtained from approved sources; shall be orushed and shall consist of particles of stono mixed with approved binding material. Tho material shall bo appmved by the Engineer before being rjlaood, The proeeased material when properly slaked and tested by standard laboratory mothods shall meet the following ro quiromentai Retained on 2-inch screen 0% Retained on 1/4-inch screen 55 . 70 1101 Naterial passing the one-fourth (1/4) inch noroon cihall be known as "Binder" and that portion of the binder passing the PorLy (40) mush sieve ahall 'e known as "Soil Binder". Boil Binder ahall moot Lhe following requirements: The liquid limit shall not exceed . . . . , , 45 The plastioity index shall not exceed . . . . 1~ The linear shrinkage shall not exceed . . . , B,y$* (2) Lit ftun Oravel The materials <hill be obtained from approved aourcenj shall consist of durable partio'.Lue of gravel mixed with approved binding materials; and shall, be free of thin or elongated pieces, lumps of olay, soil, loam or vegetable matter, The material shall be appr,~vod by the Engineer at the source. Materials containing gravel or conglomerate over two (2) inches in their largest dimension shall be broken up and uniformly mixed with the remainder of the material. The material, when properly slaked and tooted by standard laboratory methods, shall meet the following requi,romentst Retained on 2-inch screen . , , , . , , , , , 0% Retained on 1/2-inch screen , , 20 to Retained on 1/4-inoh screen 40 to 7 Retained un 44 mush sieve do to 85% The material passing the 40-mash sieve, "Soil Binder", shall meet the following requiremontat The liquid limit shall not exceed . . . , y The plasticity index shall not exceed . 12 T,ho linear shrinkage shall not exceed rl%* *Notei The linear ahrinkage shall be calculated from the volumetrio shrinkage at the liquid limit. Should the Contractor eliot to produce the opecifiod material from local pito, the pits shall be opened up in such a manner as to immediately expose the vertical faces of all tho various strata of acceptable material, and unless othotwtise directed, the material shall be excavated in successive vertical outs extending through all. of the exposed strata, E. Co s iate~tipl;~!)aa„_e Course t 10 'rn i r.at~~ior~,, o___f eubgra e s The area upon which the foundation course is to be placed sha11 be excavated, or filled, as the case may be, an shaped to conform with the typical onotions as shown on the plans and~er to the lines and grades astabliahed by the Engineer, All unstable and/or otherwise obleotionable material shall be removed from the subgrade and 110-2 replaced with approved material.. All holes, ruts and depressions shall be filled with approved material, and, if required, the subgrade shall be sprinkled, reshaped, and oompaeted to the extent dirootod in order to place the subgrade in an accoptable condition to recol.vo the foundation matori.al. A satisfactory twelve (12) foot straightodgo and a template conforming to the typical seotion shown on the plans, and/or established by the Engineer, shall. be furnished, maintained and operated by the Contractor, In areas in which the use of the twelve (12) foot straight- edge would prove impractical, adequate methods of oheoking the subgrade may be substituted, The surface of the subgrade shall be finished to line and grade as established by the Engineer and in conformity with typical sections shown on the plane, and any deviation in exeoss of one-half (1/2) inch above or below required grade as shown by template or straightedge, when placed as directed, shall to corrected in an approved manner. Sufficient subgrade shall be prepared in advance to insure satisfactory prosecution of the work. 2. Plaoin r Immediately before placing the fourrlation course material, the subgrade shall be ohsdked with straightedge and template as to conformity with grade and section and oorrections made if necessary, The material shall be delivered in approved vehicles, and it shall be the responsibility of the Contraaotor that the required amount of acceptable material shall be delivered to the site, Material placed upon Ue subgrade shall be spread and shaped the sarwv day. In the event inclement weathor or other unforseen oiroumstances cause the spreading and shaping of thu material during tho first twenty- four (24) hours after delivery to be impraotical, the material shal.lrbe soarified, if nooossary, and vp road as directed by the Engineer. The material shall be aprinklod, it dirooted, And then bladed, draggod► and shaped to conform to the typical c:ootions shown on the plans andlor established by tho Engineers All, aroas and nests of segrogatod coarao or find material shall be eorrootod or removed and replaced with well graded material. If additional binder is oons14orad necessary or desirable after the material is spread and shaped, it shall be furnished and applied in the amount directed by the Engineers Such binder material shall be carefully and evenly incorporatod with the matovinl in place by approved mothods. The course shall then be spr~nklod as required and rolled as directed until a uniform compaction is seourod. All irrogulav W on, doprosaions, or weak spots which develop in the foundation course shall be corrected immediately by snarifying tho areas affected, adding au itable matorinl as required, reshaping and cl!mpaotint, by sprinkling and rolling. Compaction rolling shall be donor with Tamping Hollsrs and/or Pndumati,o Tire Roliors, as di.roctec) by the Engineer. Finish rolling shall be done with r, throe (3) whoolod, ten (10) Lon Rollers 110-3 Tempint Hollers shall consist of twor metal rollore, drama, or shells, of forty (40) Inchon minimum diameter, eaoh not lose than forty,tvro (42) inches in length and unit mountod in a rigid from in nuoh manner that Asoh roller may oscillate in&tpo ndently of the other, and each roller drum, or shell shall be surmounted by metal studs with tamping{ foot projecting not lest, than seven (7) inches from the surface and spaced not, lose than six (h) inches nor more than ton (10) inches measured from center to center in any direction) and the cross sectional area of each tramping foot, measured perpendicularly to the ex is of the stud, shall be not lean than five (5) nor more than eight (8) square inches. The tamping foot i5hall be rounded in shape, and Vie roller shall be supplemented with cleaning teeth to pro- vide self oleaning. The roller shall be so construotod that the load on each tamping foot may be varied from one hundred twenty-five (125) pounds to one hundred seventy-five (175) pounds per square inch of cross sectional area. The load per tampi.tig foot will be determined by dividing the total weight of the roller by the number of tamping feet in one row parallel to or approximately parallel to the axis of the roller. The tamping roller shall be drawn by a suitable orawlor-type traotor, and the tractor and tamping roller conforming to the above prescribes requirements shall be considered as a tamping roller unit, Pneumatic tire rollers shall consist of not less than nine (9) pneumatio tired wheels running on two axles in such a manner that the rear group of tires will not follow in ti~,g tracks of the forward group and shall be mounted in a rigid frame and provided with a loading platform or body suitable for ballast loading, The front axle shall rotate around a king pin so located that the roller may be turned within a minimum circle. The pneumatic tired roller under working conditions shall have an effective rolling width of approximately sixty (60) inches and shall. give a minimum compression of three hundred and twenty-five (325) pounds par inch of width of tire trend, The pneumatic tired roller shall be drawn by either a suitable tractor or a truck of adequate tractive offort and the roller, when drawn by either typo of oquiprpent, shall be considered a pneumatic tire roller unit, Three (3) wheel, ton (10) ton rollers shall,b a the poll-propelled typo, weighing not less than three hundred and twenty-five (325) pounds per linear inch of tire width. The rear wheels shall be f?.at and shrall. have a diameter of not less than forty-eight (40) inches and each shall, gave a tire width of not lass than twenty (20) inches. Ono roller unit of the typo required by the Lngineer shall be provided for each 100 cubic yards, or fraction thereof, of material placed pet, hour, The quantity placed por hour shall be determined by averaging the total quantity of material placed in any one day, The use of woi,ghte, extra rollers, drums, tires$ or other equipment attached to a roller unit will not be considered as suffioionr to reduce the number of roller units required on tlna project, When operations are so isolated from one another that one roller unit cannot perform the required compaotion satisfaotorily, additional roller units shall be provided anti operated as directed by the Engineer, 110x4 Rolling shall start longitudinally at the Won and proceed toward the center ovorlapping on silocessive strips by at least ona-half (1/2) the width of the pneiimatio or tampin roller unit and ono.half (1/2) tho width of the roar wh0c) on the throo 0) whorl, ton (10) ton roller. The rollers, unless otherwise directed, shall be operated at a speed between two (2) and three (3) miles per hour. In areas on which the use of a roller unit would be impraotioal, other suitable methods of compaction may be used. Any deviation in excess of one-fourth (1/4) inch an shown by straight. edge or template on the finished foundation course shall be corrected by loosening, adding or removing material, reshaping and reoompacting by sprinkling and rolling. 3. r°a (t !ad . ~ t Ibuntion Ccursa for P a in Pavements The foundation course shall be s hailed to exact section and grade "a"r o"r to laain thereon. Shaping shall be done by approved methods. Immediately gafterment being shaped for pavement, if required, a light course of sand shall be spread over the top of the foundation course for the purpose of correcting any irregularities that may develop during the shaping and to bring the foundation coursn to a smooth oven surface conforming to grade and section, 1' P . ve nts The roadway and parking area around tho existing ground. storago tan shall be paved with a If" hot mix asphaltic concrete pavement meeting the requirements as to materials and construction methods of the Texas Highway Department Standard 3peoifiontions Item 317 Hot Mix Asphaltic Concrete Pavomont (Type ''C''), The main parking area in front of the main building; shall bo pavod with conoroto of 611 dopth. Concrete shall have a comprossive strength of 29500 Psi, and oo m rote, roinforoing stool and oxpansion point material shall be in ocoordanco with the applionblc sootiona of those 5pecifioations. ILO-5 ITEM NO. 111 - ,9ANITATInN AND CLT)AN UP A. (nerals During, oonstruotion, the Contractor ahall maintain the premises in an orderly, neat, and presentable condition. Sorapo and debris shall not be loft scattered around but shall be assembled at one place, When construction under the Contraot hat) been otherwise completed, the Contractor shall remove all. loft over construction materials, equipment, sorapa, debris and rubbish, and leave the site in A neat, well. kept appearance, To provide good sanitary conditions during oonstruotion, the Contractor shall provide adequate eanitary faoilities for the workmen, and Contractor shall not permit any unsanitary praotices to oontinue which would prove objectionable to the surrounding property owners, At the completion of the work, all buildings And struotures shall be broom olean, He shall clean the walls of all hydraulic structures of dirt, drains, or other material and pipes shall be left free of any and all foreign material. He shall remove all marks, stains, dirt and soil from all finished surfaces and shall thoroughly clean All floors, clean and polish all finished hardware and other such devices, H ND OF ITEM lll.l 1 ~.~Nxz - t~cH~cA~, sn~cr~~ 1►1, o ITEM N0, 20LI QI,;Nfs' L CHr~IJICAL liF U tL NTS A. Generals This item covers the general requiramonts pertaining to the furnishing and installing of all mechanical equipment and materials required in the work. These specifications are intended to be no written that only equipment and materials of the beet quality will be furnished: the fact that the specifications may fail to be sufficiently complete in some detail will not relieve the Contractor of full responsibility of furnishing best duality equipment and materials and incorporating thane into the project in an entirely satisfactory manner. Equlpamint and materials shall be installed in a workmanlike manner, iin accordance with the specifications and the msnu- facturor's recommendations and, when installed, they shall be in good opsr- ating order, properly adjusted, The Contractor shall: furnish the services of a competent technical repre- sentative of the manufaeturor for all equipment, except such equipment and materials not requiring such service due to their simplicity of installation and adjustment, This service is for the purpose of insuring proper installa- tion and adjustment of the equipment; instructing; operating personnel ill proper maintenance and care of the equipmeintl and for conducting tests and making recommendations for obtaining the most efficient use of the oquipwont, B, ~a ufa u a ~catjMgi All equipment furnished under this Con- traot shall be the product of manufacturers who are know to be skilled and. who have been regularly engaged for a period of five (5) years or more in the manufacture of each specific typo of equipment, or its counterpart, C, ~ 'a tst All equipment shall be serviced with oi.l, groaso, and any other required lubricants. D. Mecia Toolos Any apooial tools nocessary to atncsombl.o and rorvicc any item of equipment shall be furnished with the item, lach special tool shall be properly marked to indicate the oquipment for whioli it is to be ueiod, E. Charts and lnk1l A one (1) year Supply of charts and ink shall be fur.. niched for all recording instruments, rl,NU OF ITEM 201-1 ITEM NO, 202 - FLOCCULATORS A. QeneMjs This itom covers the furnishing and installing of trio (2) flocculator units in the floccul.ator basins, The flocoulatcrs shall be "F'loetrols", as manufactured by the Jeffrey Manufacturing Company, or approved equal. Both units shall be installed as indicated on the Plans in a workmanlike manner and in accordance with the manufacturer's recommenda- tions. B. ~Q,ratior~s Each mechanism shall be designed to accomplish tapered mix- ing by providing decreasing rates of agitation in the direction of flow through the tank. The tank is divided into three ~3) compartments by means of concrete baffles designed to provide increasing time periods in the direction of flow through the tank. The rates of agitation shall be such as to produce proper building up of floc in each compartment, C, Edits: Ports between the oomp,artmente shall. be 2'-.0" in diameter with the centers at the center of rotation of the floooulator reohanism. The ports are designed to give a maximum velocity through them of not to exceed one (11) foot per second at maximum flow. Rotating baffles, one (11) foot greater in diameter than the portp, of #12 gauge steel, shall be located twelve (12") inches beyond each port. D, a d eel,st The paddle wheels shall be approximately 101»6" in dia- meter, mounted on solid steel shafts of not lose than 3-?/16 inches diameter. Each shaft shall be coupled to the next by means of a flanged coupling, Flanges shall be oe 1" minimum thickness steel and shall be welded both sides to steel shaft, Paddle arms shall be made of steel angles 3" x 2-1/2" x 5/26" fastened to the shaft by means of stool plates 1/2 inch thick. The paddle blades shall be made of 2" x 4" redwood fastened to the arms by means of suitable bolts and lock washers, The peripheral speed of the paddles shall range between 0,75 and 1,50 foot per second, controlled by an infinitely variable speed drive unit. ^ch paddle unit in the first compartmont shall have four (4) sets of arms placed 400 apart. To each pair of arms shall be attached five (5) blades of proper length, spaced 12-inchoo center to center, starting at the periphery of the paddle wheel. Each paddle wheel in the two (2) second compartments shall havo two (2) sets of armu placed 1.800 apart. To Bach pair of arms shall be attached f .vo (5) bladoo o!' proper length, spaced 12-inches center to conter, starting; at tho poriphery of the paddle wheel, E, Underwater H a st Underwater bearings may be water lubricated pro- vided with Catke bushings, or equal, or they may W babbi.tted bearings with provision for grease lubrication, F, DILL, Unitst A separate drive unit shall be furnished for each flocou- later, The drive unit shall consist of a U. S. Vari-Drive Unite or approved equal, directly connected to a positive, infinitely variable all metal, chain gear, including semi-automatic chain tensioner with a 21l speed variation to produce paddle periphorial apeeds between 0,75 and 1,50 foot per second, Both units shall be equipped with anti-friction bearings and shall be made in accordance with A,Q,M,A, Standards for 24-hour continuous service, The motors for the drive units shall be of nufficient power to start and drive 202-1 the units continuously without overloading, and shall be a minimum of 3/4 horsepower. They shall be totally enclosed motors designed for outdoor installation, They shall operate on 3--phase, 480-volt, 60-cycle current. K-)tor ;,tarters are specified in the electrical section of those specifica- tions, G. Driyg Chains n L ockqtsL: A steel bushed rollor chain shell connect the mixer shaft to the output shaft of the variable speed reducer. Chains shall have an ultimate strength of not loss than 20,004 pounds per square- inch, All sprockets shall be of alloy cast iron with chilled teeth and rims, conforming to A.S.T,M. Designation A-48-41, Class 35, including the addition of 0.25 per cent molybdenum and 0.50 per cent chrome. The teeth shall be accurately formed and ground smooth to mash accurately with the chain, The sprockets shall be securely keyed to the shafts, A 14-.gauge galvanized chain guard shall be provided for the drive chains above the operating floor. H, Structural. Steelt All structural. steel shall conform to the "Standard Specifications for Structural Steal for Buildings" of the American ;society for Testing Materials, I, Iron Calti.na_si All, iron castings shall be of tough, close-grained, gray iron, free from blow holes, flaws, or excessive shrinkage, They shall conform to the "Standard Specifications for Gray Iron Castings" of the American Society for Toeti.ng Materials, J. Instal, at3ons The flocculators shall be installed in accordance with the Plans and Specifications and in accordance with the oquipmont manu- facturer's rooommendations, The mixer shafts shall be perfectly al.ignod both horizontally and vertically, and driven sprockets perfectly aligned with driver sprockets. All anchor bolts shall. be galvtiniaed steel. The units shall be painted in accordance with the Painting section of these spo,~ fi.cations, K, Sho PtaI tt All. submargod metal shall be shop ea.nd bl,arted and naintcrl with ,one ~ l~ coat of lNIMTOL Ructinhibit;i.ve Primer No. 621. Drive i,u .t shall bo til_ven one :shop coat of a rust inhibitive primor equal to DuPont Dul.ux Primor No, '("60. END OF ITEM 202-2 ITEM NO, 20'l . SLUDGE; CpLLEC10M A. Genera r This itein covers the furnishing and Snutall.ing of sludge collector mechanisms. The equipment covered by thasa apocifications shall be as manufactured by Walker Proooss, Inc., Link-Dolt, Co,, The Dorr Co., Process Engineers, or approved equal. Sludge collectors shall be for installation in rectangular concrete basins as shown on the plans, having a 141-.0" side water depth. The mechanism shall be circular with nominal 491-9" diameter. They shall can- sist essentially of a central, driving mechanism which rotates and supports a center cage with twu ralce arms attached thereto, There shall be pro- vi;ted a corner blade for each rake arm to scrape the tank bottom outside of ti4 inscribed diameter, Scraping blades, attached to the arms, shall be arranged to scrape the sludge that settles on the tank bottom to the sludge pocfcet at the center of the tank, All structural steel used in the fabrication of the mechanisms shall conform to the requirements of "Standard Specifications for Steel for Bridges and Buildings", A,S.T.M. Designation A-7, All shop welding shall conform to the latest standards of the American Welding Society. All submerged Rietal shall have a minimum thickness of 1/1~11. Fabricated assemblies shall be shipped in the largest sections per- mitted by carrier regulations and properly match-marked for ease of field erection, D. enter ss 1nbjXs The center assembly shall consist of the drive unit with main bearing assembly, suitable lubrication fi.ttinr,a and supports for floor plate and inner end of the walkway, The drive unit shall consist of a main spur Boar, pinion, worm gear and worm driven by a totally enclosed gearmotor of adequate size, 1/2 horsepower minimum, through rollor chain and sprockots ono.losed in a fabricated steel guard, The motor shall, be suitable for operation on 480-volt, 3-phar3o, 60- cycle currant, Motor starter shall be as spocifi.od in the Ll.ectricril t,ec- tion of those Specifications, The main goals and ororm gear assemblies shall be enclosed in cast iron housings provided with felt dust coals, and do- signed so that all geara and bearings run In oil. The main gear housing shall be arranged for bolting to the top flange of the stationary center column with bolts as required for transmitting the design torque. The rotating center cage to which the rake army are attached shall be bolted to the main gear. The main gear shall be of alloy cast steel supported by and rotating on a precision radial-thrust type main ball bearing. The pini'.on shall be of forged alloy steel, the worm gear of cast aluminum bronze and the worm of hardened steel. The horizontal worm shall be integral with the worm shaft, and supported by a bronze bearing and a combination radial-thrust ball bearing. The drive unit shall be designed for an output torque of not less than 209000 ftt l.bs,, with the strength and surface durability rating of all gears based on standard design criteria used in the gear industry, 203-1 Co Overload Alarm. There shall be built into the drive unit, a mechanical overload dovice operating two moreurv type switcho;i, one of which shall open the motor circuit in case of an overload and the other switch shall operate the warm circuit. The alarm shall be an industrial type horn so designed that it may be mounted on the alarm box proper. D. 1Jalk aap4 02eratinp,_PJat 2XM: The turntable top shall provide a platform on the center pier giving convenient accesn to the driving mechan- ism, with a walkway of truss construction connecting the platform to the side of the tank. The walkway shall be covered with checkered plate. E. Center Cares The steel center cage shall be hung from the turntable top. It shall support and drive the two rotating arms and shall be of suffi- cient strength to withstand the full force of rotation. 1. Qft t atin s t Two structural steel, arms of truss construction shall be furnished provided with long steel, blades or plows, properly set and spaced to serape the settled sludge from the tank bottom to the sludge pocket eb the center. The radial arms shall conform to the slopes of the bottom. Ad- justable brass squeegees shall be furnished for all blades. They shall project approximately 1-1/2 inches below the bottom of the blados and shall be adjustably secured by red brass bolts and nuts. The speod of the rotating arms shall be 0.053 RPM. O. Corner lllade Me Ian sm., Two complete corner blade mechanisms shall be provided for attaching to the rake arms. Each corner blade mechanism shall consist of rigid frames of „.,nlded steel construction, rtith the outer ends supporting a pivoted blade and the inner en0o pivoted to the support frames on the end of the rake arm. The pivots shad, be ntool, rotating in Micarta or equal self-lubricated bushings. The i.nne, pivot shall be steel rotating in cast iron bronze bushed bearings, These bearings shall be provided wkth automatic grease lubricators having gear segments actuated by the movement of the corner blade arms, and shall have a grease capacity providing lubri- cation for a period of at least one (1) year without refilling. The outer end of the corner blade shall be provided with a roller. Bach mechanism shall be actuated by a steel cable chain guided ovor a pocket sheave and provi.dod with cuitablr, weight to troop the roller on the and of the corner blade in contact with the guide plates at tho tank bol.tom at all tilgos. H. G._uide Plateos steel guide plates, of 1/it inoh thickness anti width as required, shall be provided for the side of the tank to guide Vie end of the corner blade mechanisms. Suitable anchors shall be provided for anchor- ing the guide plates to the tank floor and/or walls. I. StructUral bosieni All structural members of the mechanisms shall be designed to withstand the 20,000 ft, lbs, output torque produced by the drive unit, The right is resorved, prior to accepting any particular sludge collecting mechanisms to have the complete structural design notes for the mechanism submitted for the )engineer's review and approval. J, ho Paint: All metal, uhall be shop sand blasted and paintod with one (1) coat of INERTOL Rustinhibitivo Primer No. 621, Drive unite bridgop and other non-submerged units shall be given one shop coat of a rust inhibitive primer equal to DuPont Dulux Primer No. 760. 203-2 K. Anchor A(Wk>s Galvanized steel anchor bolts with necessary hex nuts and washers shall be provided for all parts of the mechanisms to be secured to the concrete basin. L. LtLbricatios All pears and hearings shall run in an oil bath. Readily accessible lubricant fill and drain pipes with necosoar,y fittings shall be provided. All necessary grease and oil for initial operation and testing shall be supplied by the Contraotor. END OF ITM 203.3 ITEM NO. 204 _ FUTER t4CnTA A. P'i1.tering tiaterials~ 1. Qonerals This item covers the furnishing and placing of filter Band and gravel in the filters to the depths indicated on the Plans or as specified hereunder. These specifications are the "Standard Specifi- cations for Filtering Material", Designation B100-59 of the American Water Works Association and Test Procedures given under Section A2 of the thee filtering hmaterials, Test n reports on govern material ttotberfurequired on' rnished shall be submitted to the Engineer. No Band or gravel shall be placed in the filters until authorized by the Engineer and after leakage or other tests have been conducted on the filter structure and the filter underdrains, 2. Underdral,n Gravels a. Physical Gharaoteristies_: Gravel shall be obtained from an approved source and shall consist of hard, rounded stones with an average specific gravity of not less then 2.5, Not more than one (1%) percent by weight of the material shall have a specific gravity of 2.25 or less, The gravel shall contain not more than two (2%) percent by weight of thin, flat, elongated pieces (pieces in which the largest dimension exceeds three times the smallest dimension) determined by hand picking; and shall be free of shale, mica, clay, sand, loam and organic impurities of any kind. b. Solubilitys Solubility for gravel sizes )'/8-inch or larger shall not exceed ten (10%) percent, for sizes Bmaller than 3/8-inch, solubility shall not exceed five (5%) percent. o. Porositys The porosity of the gravel in each layer shall be no.• loss titan thirty-five (35%) percent nor more than forty-five (45%) percent, d. Gravel Size and pyor T hioknoess The eravel shall be screenod to proper sizes and placed in the filtors In layers, as specified in Table 1, and the gravel within each layer shall to uniformly graded. Gravel over 1/4-inch In diameter may be screened through wire screens with square openings or plates with round openings, Ilire soreens shall be used for sizes smaller than 1/4-inch. Not more than eight (13~) per- cent of the weight of any layer shall be finer or coarser than the limits specified for that layer. TBrrr UM-1.1040r Layer Thickness Size Limits 11 'third 241 1/211 too3~1611 Mesh Second 21r 3/4„ to 1/211 Bottom 211 1.1/21 to 3/41 204.1 e. Plate Underdrain Gravels The filter box ehall be thoroughly cleaned before ayg throughout the operation. Gravelamade idirtycin any aylshallkbetremoved and replaced with clean gravel. The bottom, layer shall bo placed carefully by hand to avoid disturbance or damage to the urMordrain system, for materials less than 1/2-inch in diameter, the workmen shall not stand or walk directly upon the gravel but upon boards which will sustain the weight of the workmen without displacelw nt of the gravel, Any, gravel becoming mixed shall be removed and replaced in layers as herein specified. The correct thickness of each layer shall be obtained' as followsm Before the gravel is placed, the top of each layer shall kre marked on the side of the filter, The top of each layer shall then be leveled against a water surface held at the appropriate mark. None of the particles shall be lesb than half submerged, and there shall be no places where additional gravel can be placed without the particles extending more than one-half (1/2) of their volume above the water surface. 3. Enter sa d i a. Physical Charari tioe= In these specifications, filter sand is classified as material less than 2.0 mm, in diameter. Filter sand shall be composed of hard, durable grains, free of clay, loam, dirt and organic matter. Not more than one (i;,) percent by weight shall be flat or mioaceous particles, b, ubilit t Solubtilty in hydrochloric aoid of the sand shall not exceed Ave fi5 percent. o. Sand Sies$ Filter sand shall be wall graded and material showing abnormal grading may be rejectod. The particle size distribution shall be determined by screening through standard sieves, Tyler (square root of 2) series or oquivalont U. S. series, The percent sizes shall be determined from a plot of the percentages of the material passing each sieve against the rated opening of the sieve, or the equivalent diameter of the rraina. "hen so plotted, per cant sizes shall. fall within the ran os given in Table 2, The ratio of sixty (60%) percent si.zo to ten (10`j`~) percent size shall not exceed 1.70, and no particles shall exceed 2 min. TADUP, 11 Pa_ resat Sizo Range - Min, to Hax, 1 0.34 mm. to 0,)9 mm. 10 o.45 mm, to 0.55 mm. 6o 0.68 mm, to 0.91 mm. 99 1.19 grim, to 1,80 mm, 204.2 d. Placing, Sand In Filtorsi Sand shall be transported and placed carefully to prevent, contamination of any sort,, and sand made dirty before or after placing shall be replaced with clean sand. Sand shall be placed in the fjlter, preferably through water, so as not to disturb the top layer of grtlvel, and shall be finished off smooth to the proper elevation. After sand has been placed to the depth shoran on the Plans, the filters shall be backwashed three (3) times$ at a rate to give thirty (30%) percent expansion of the sand, and ',hen allowed to compact by closing the backwash valve slowly, Final closure of the valve from the opening that gives ten (30%) percent expansion shall. extend over not less than thirty (30) seconds. The fine sand on top shall be removed and, it sand depth after this washing operation is not as shown on the Plans, su£fioient sand shall be added to bring to the required depth. END OF ITEM ?.04-3 ITCM t10. 20 FiusR I1IM'R INa A. 0enoralt This item covers the furnishing and installation of a filter underdrain system for each of the four (4) filtors, The underdrain systems shall be as manufactured by the F, B. Leopold Company, Inc., Pittsburgh, Pennsylvania, Installation shall tie in accordance with the mantfacturer's recommendations. D. _Underdrainst The underdrain systems shall be of the compound duplex filter b'-'i"otto,n type, consisting of precast vitrified clay filter blocks with built-in headers and collecting system, as indicated on the Plans. The blocks shall be designed to provide a secondary distributor, with holes in the top of the blocks. The laterals and the secondary distributors shall be combined in the same block. The blocks shall be made of vitri- Pied do-aired fire clay, thoroughly vitrified and care,iull~ glazed. The filter blocks shall have a max, mum absorption of eight (S~}~ percent when tested according to A.S.T.M. Speoifioationb, Serial Designation No. C-13-50T. C. Snstallatioml Care shall be taken in handling aryl storing of filter blocks two ~av d any breakage or damaging of edges. Any blocks that have imperfeotions, such as cracks, chipped places, blisters, or any other imperfoutions whatsoever, shall be rejected and the Contractor shall be required to remove such blocks from the project mite. The blocks shall be sealed in accordance with m^nufaoturerts specifications, using; a cement grout made of two (2) parts of concrete sand and ong (1) part cement to which shall be added pozzolithic material. After installation, all blocks shall be cleaned and excess mortar removed from the top, careful inspection being given to see that all holes in the blocks are open and freo from foreign matter. The entire undordrainage system shall, bo thoroughly back- washed and flushed out before any filter riedi a is placer;. LAID OF :IT211 205..1 ITEM NO. 266 _ INS UMI TATIOM AM CONTROL A. General: The design of the instrumentation and control system for the filters s All follow the latest practices for the par0 cular type of apparatuo and shall be complete with all necessary accossories for proper operation. The system shall function on a 3 to 15 pound linear signal, controlled by an existing master control system. The instrumentation and control system shall be manufantured by B..I_P lndustries or Szirplex Valve and N!.oter Company. 8. Fg4jpment; The instrumentation and control system consists of the following equipments a, Filter Operating Tables W/Hardware b. Rate of Plow Gauges - Indicating o. Loss of Head Gauges - Indicating d. Filter Valves 1. Filter Influent - Sluice Gate 2, Filter Wash - Butterfly Valve 3. Wash Waste - Gate Valve 4. Surface Wash - Gate Valve e, Filter Controllers f. Compressed Air Filter g. Pressure Recorder The valves controlled by means outlined in this section shall be as specified in their respe d ive sections of the specifications, C. Filter Onoratinx Tables A. Gene alo There shall be furnished and installed where shown on the Planes, an operating table for the control of filter valves for each of the filters. b, flarble Tablesi The tables shall be sturdily constructed of first quality Tennessee pink marble and shall be provided with two oak doors in the front with openings in the roar to be left open. The top of the table shall be 1-1/4 inch thick, projecting over :11_1 . aides one (1") inch; edges shall be beveled. Base shall extend around all foul, (14) sides of table and shall be 1-1/4 inches thick, top edge beveled. The ends, stiles and rails shall be 7/8-inch thick; ends fabri- cated from one (1) piece. All outside surfaces shall be highly polished and of a uniform texture. The exterior parts shall be securely fastened by bronze angle plates and brass machine bolts. .Che facing material shall be self- supporting; the weight of manifolde, valves and connecting piping shall be supported independently on a metal supporting frame. 2G6.1 Exposed hardware shall bF of brass or bronze, chrome plated and polished. Tables shall be of such size that standard loss of head and rate of flow gauges may be mounted without crowding, Table manufacturer shall drill top slabs to accommodate gauges to be mounted thereon, Table height shall be three (31) feet above finished floor, Tables shall be similar and equal to the existing filter operating tables, which are Modal FTPV-S, manufactured by B-I-F Industries, Inc, C. 2Le atin `f'able T ui menu Each filter operating table shall be equipped so that the filtor can be operated in the following manners (1) Permit selection of "Automatic," or "Manual" control of filter-effluent rates at operator's option, (2) Automatic operation with rate manually set on the filter controller. This is automatic control of an individual filter without regard to the others, (3} Master automatic operation with tha rate pneumatically set on each filter controller by the existing settled water level, controller. Control shall, be provided so that controllers close down when applied water level falls below a predetermined point. This control shall be superceding in the "Automatic" position, Valve operators shall be controlled hydraulically from the operating table. The following will be controlled from the table, (1) Filter Influent Sluice onto (2) Wash Water Butterfly (3) Wash Water Sewer Gate Valve Surface Wash Gate Valve For operation of valves, each table shall be provided with bronze four-way, piston-type auxiliary valves corro9ponding to the number of hydraulic valves to be oontrollorl. The four-way valves shall be of a design hnving nogligi.ble loahage, froo from sticking or binding and shall roquiro no lubrication. Each valve shall be a separate unit which can lx' readily removed for inspection and maintonance without disturbing the operation of the other unit. Valve construction shall permit operation of hydraulic valves to any desired degree of opening and holding that position without cropping. Valves shall be rigidly attached to a cast iron manifold or header providing passages for pressure and drain. All connections for piping between control valves and hydraulic cylinder shall be 3/4,ineh female pipe thread. Each four..way valve unit shall be provided with a separate laver arranged to move in a vertical plane, A separate, electrically operated hydraulic valve position indicating device shall 206..2 be rovided for each valve, showing on an indicr,tor not loss than four (4"~ inches square the name of the valve controlled and the percent of valve opening. Valve indicator shall be manufactured by A-I-F Industries, Inc,, or Simplex Valve and Meter Co. Table shall be equipped with a cut-off valve to phut off water supply to four-way valves when not in use. D. Rate and Losj pauaest Loss of head and rate of flow indicating gauges shall be furnished for each of the four (4) filters, A separate dial of 10-inoh nominal diameter shall be furi,ished for loss of head Anil rate of flow indication. Gauges shall bn of the pneumatically actuated type mounted on top of each Operating TaUe in a suitable case. The loss of head transmitters shall be of the force-balance type providing output air pressure over a range of. 3 to 15 psi which is directly proportional to the loss of head through the filters, Both loos of head and rate of flow gauges shall have uniformly graduated dials reading directly in M.0,D, and feet, Dial graduations for lose of head shad be from 0 to 12 feet and for rate of flow from 0 to 2.0 MOD, Actuating devices shall be designed to operate properly under all conditions of filter operation. E. .Filter Rate of FllowCc rat= The Contractor shall furnish and install four`""'S Rf uuent rate of flow controllers consisting of a Venturi metering section, a pressure rooovery section, and a tight closing regulating valve with hydraulic or pneumatic power operator and including the auxiliaries described hereinunder. The controllers shall be Model RCB-T As manufactured by B-I-F Industries, Inc, or Model P "Modulair" manufactured by Simplex Valve & taster Co, The rate of flow controllers shall regulate the rate of flow from 0 to 2.0 million gallons per day and shall maintain the pneumatically set rate to within an error not to exceed three (3%) percent, plus or minus of actual flow over the range of from 0.40 to 1,5 10D. The co»trollor shall be constructed of close grain, high tensile cast iron with inlet and outlet fl;xged 10-inch sizo, drillod 125 lb., ASA Standard, The Venturi metering section nhal.l have a pressuro-nverag;ing annulus ai, the inlet and a closed annular chamber with multiplo vents at the throat. The Venturi throat shall be bronze lined, accurately machined to proper diameter And contour for maximum accuracy and for insuring; freedom from corrosion and tubercu.lation. The inside surfaces of the controllers shall be smooth, of uniform contour and except for the bronze throat, shall be given a protective oonting of, coal. -tar varnish. The actuator assembly nhall incorporate a four-way hydraul pilot valve which shall function with the hydraulic cylinder operator to position the regulating valve for maintaining the pneumatic set rate. The pilot valve shall be constructed of noncorrosive materials throughout, Its assembly shall permit easy removal for inspection and maintenance, 206.3 sting Master Control astemThe existing master control system consists of a bubble pipe system wt:ich measures level in the settled water flume, and a pneumatio level transmitter, The transmitter receives the output from the bubble pipe system and amplifios it into a 3 to 15 psi air loading pressure which controls the pneumatic actuator for eacl. filter rate of flow controller. The air header carrying this signal. to the existing filters shall be extended to the proposed new filters, and they shall be automatically controlled by the existing master control system. Filters shall function so that whenever a filter is remov,)d from service, its share of the total plant load shall be divided evenly la taeon the filters remain- ing in service. Upon restoring a filter to operation, the total plant load shall be divided evenly i_b tween all operating units. No filter shall deviate from the others more than five (5;~) per cent regardless of head loss, under normal operating ,onditions and when under master control. A "Manual-Master" selector switch and manual rate adjustment indicating dial shall be mounted on the top of each filter operating table so that any filter may be removed from master control and the rate set manually from the operating table. 0. it Filters 'rho existing air supply for the instrumentation and control system is from two (2) air compressors located in the south end of the existing pipe gallery. This supply is adequate for thn, proposed filters also, and the air supply header to the existing filters shall. be extended into the new pipe gallery for this purpose, This contrr,r, ;or, ho avE,r, shall furnish and lnsta'.1, ad,j"cont to the existing air corrpresso^s, a now condensing type air filter. The filter shall be inatallad in the dischargo line of the conpron sors and existing pres,uro reducers shall be reinstalled in the discharge line from the filter. The filter ,shall. t:o a lfankin on Corporation Condensif9.lter, or approved equal, and shall bo cr;,ablo of filtering and dehydrating the comprossed air. It shall be complete with a condenser capable of reducing the dew point to within two (2) degrees F. of the temporature of the available cooling wa'cor. It disposable moc ldanic,<). filtor cartridge shall bo incorporated in the unit an well rt,s an aW%omfl i.s. oondennai• on discharge val.vc. Coollrip, water for tho f:1111 r sh.tll 1:,, cl)tained 1,,y tapping; the 6" C.I. r .:rfaco wash header rl i r,.(It l,y abovo th- and cnrinocti_ng to f,ho fill,or with t_i.no size as rec,oiamontl, i by f i l l,or irrlntcPao I'll ror, If. ~It ` 1_'_) T)1r,f ;PG(1'"Oel'i )1AYltt?Cl oil lifle 1ntit2`1im0nt ~ 7-7 panel in cn+,. 91 r:, Of Lh r,x1.:3t1l11main b11.1di.rig 113 a high service discharge prosHurI cnrl_i.e tint; g4lI;o. The gftctj~ :I rl,•I Chronoflo Indicator manufactured by B-I-F Industrivas ;1. ,cl;_,u for is controlled by a time-pulse Oeotrie trannmitte ttt rot-1 Location on the high service pump discharge line, The transmitter 13 Much, C71 Chronoflo transmitter, manufactured by H-14 Industries, Inc., 4il.t,h t menouring rangy of 0 to 9100 psi, Thi,, Conr.raotor shall remove the existing indicator from the receiver case in the ).nstrument; pariel and ahall furnish and install an indicating- recording receiver in itt place, The receiver shall be Model ORB-IR 206-4 Chronoflo Indicator-Recorder, as manufactured by B-I-F Industries, or approved equal, The receiver shall have a measuring range of 0 to 200 psi, and both indicator avd recording charts shall bo graduated for this range, The receiver shall be capable of aotuati.on from the signal ob- tained from the existing transmitter, The recorder shall be a 12-inch, 24-hour chart, driven by xi electric clock, Power supply is 110 V,, 60- cycle, I, Control Pininat W attempt has been made to show the amall control piping for control of filters and valves in the pipe gallery, This piping shall all be hard-r!.awn copper of size as recommended by equipment manu- faoturer, Minimum size of hydraulic lines to valve cylinders shall be 3/4" copper, All control lines shall be rigidly fastened to the pipe gallery wall and all runs shall be parallel to building lines. All bands in piping shall be made with fittings. All unite of equipment connected to control piping shall be preceded by a valve to facilitate the removal of the equipment for maintenance. EtJD OF ITEM I 206.5 ITEM_ NO, 20 - FILTER g_tlf;PAO W~15I( F ri!' A. 92JUM ,,r This item shall cover the furnishing arid installing f filter surface wash equipment in each of the four (4) of fi'itorc. The equipn f comprises the necessary wrought iron piping within t,ho filters to a con- naction with surface wash header ir7 the pipe gallery, agitator units, and the nece8sary supports and bran ing for piping, all an indicated on the flans or as may be required for proper installation, Agitator units shall be installed at the positions indicated and in such manner that the rota- ting element shall be at the same elevation above the media throughout its rotation. 'The equipment shall be installed in a workmanlike manner in aocordance with the manufacturer's recommendations, B, Adlat ifr There shall be furnished and installed six (6) type MEJ agitator' units per filter as manufactured by the Palmer Filter Equipment Company, Erie, Pennsylvania, Agitator unite shall be of the self-propel.lod, revolving type, consisting of a central bearing of all bronze eonstract,on, a bronze tee having a nozzle affixed to emit a stream directly below and from the center of this tee, and arms extending laterally containing a number of nozzles spaced on reducing centers in a manner which will, most effeotively cover the area of the filter area. Each arm shall be equipped with an end nozzle or n?zzles so as to direct a stream of water into the corners and along the wallb of the filter. Arms shall be of red brass pipe. Nozzles, bearings, and all other fittings shall be bronze. Water pressure available at the agitator unit will be from 50 to 60 pai, and the equipment shall be uesigned to operate satisfactorily with this available pressure. C. zn to 1at`o's Agitator unite shall be installed so that they revolve in a perfectly horizontal plane. Connecting piping shall be of genuine wrought iron pipe of size indicated on the Plans, Attention is called to the fact that the surface wash piping in the four existing filters is to be replaced with genuine wrought iron pipe, D. ai t = Painting of piping for agitator units shall be in accordance with the painting specification for other submerged equipment in these Specifications, END OF ITEM 207-1 ITEM NO. 20£3 GATE VALVES A. ¢ene a l This item covers the furnishing and. installi.ng of all gate valvos required for the work. Gate valves shall bo inotalled as shown on the Plans and in accordance with these Spec ificationcia they shall be equal to those manufactured by the Darling Valve Company, Iowa Valve Company, or approved equal, The wronch nuts for all valves shall turn counter-olockwise to open the valve, Uiere flanged valves are called fortt thn flanges shall be 125# ASA flanges (250# at the Raw Water Pump Statiunl conforming to the total ASA Standards, The required valves, 3" and larger, are shown heroinundorl however, it vlhall be the Contractor0s responsibility to .furnish, whero required, valves w1th the proper length of extension stems, valve boxes of proper size and length, supports or brackets for stems, and all other valve appurtenances required wherever shovel on the plans and required for the operation of the plant. No, x.tM L204ti2n ui d Size DescrIntlon 11 Sludge Draw-off Box 4 3 " Hub end -100# W,P, with handwheel for operation, 20 Vilter Drain 4 4" Fanged -100# W,P4 with hatndwheol for operation, 30 Surface Wash Line 4 6" Flariged - 150# w,P, - (it Filters Hydraulic operated from Operating Table. 4, Clearwell Drain 1 12" Flanged & Hub end -100# W,P, with operating nut and valve box. 50 Sludge Draw-off Box 4 12" Flanged end -100# W.P, wi+,h extension stem, stem guides, handwheel operated - indioating floor stand equal to Iowa F-55056 6, Wash Water Waste 4 1610 Flanged -100# W,P,- Square from Filters Bottom - Hydraulically Operated from Cper, Table, 7• Raw Water Pump 1 20" Flanged - 250# W,P, - Discharge Electric Motor Operated, C. ` Va Xt Gate valves shall, be doublo diso, parallel seat internal wedging type with cast iron body and bronze mountings, Valves 3" to 12" 208-1 in size with a working pressure of 175 pounds per Square inch and valves over 12" in size with a working pressure of 150 pounda per sq, in,, shall be in strict accordance with American Water Works Aoriociation Standard Specification for "Cate Valves for Ordinary Works ,iorvice", Design C500- 61, Cate valves which have a working pressure other than that specified above shall be in accordance with all applicable roqui.rements of A,W444,A, Specification, Gate valves for a working pressure of 50 psi, ohall be similar to List 12 as manufactured by Iowa Valve Company or an approved equal. Gate valves for a working pressure of 150 psi shall be List 1~ as manufactured by Iowa Valve Company, or equal, Gate valves for a working prossuro of 250 psi shall be Iowa valve Company List 16, or equal, Square Bottom type valves shall conform to the above specifications as to construction and shall be as manufactured by Iowa Valve Company or equal, They shall be equipped with bronze tracks and, other necessary devices to prohibit the downstream gate from tilting into the port opening during operation, Valves smaller than two inches shall, be all brass, or iron body bronze mounted, conforming to the requirements of Tederal Specii'ication WW-V-76b, D, Nvdrjul C4 $ j Hydraulic cylinders shall be furnished for 'valves as indicated hereinabove, Cylinders shall be integrally mounted on the valve bonnet, Hydraulic cylinder shall. comply with AWViA Specification C504-58, Section 11.5 or with the specifications heroin described, Hydrau- lic cylinders shall be oast iron, bronze ,lined. A bronze indicating rod, which extends through the cylinder head to indicate position of the valve gates, shill be furnished, Pail rod shall have the necessary attachments and arrangements for transmitting the valve position to an indicating dial on the Operating Table, Valve position shall be transmitter arrangement similar to "Cleatrioally Operated Valve Position Indicator" as manufac- tured by Buil.ders-Providonce, Ino, or equal, Pressure for operating hydraulic cylinders shall be a minimum of 45 pounds per square inch, Prassures against gates are as follows tem 191MUZ, ~Jum el' squired iSz Pressure 3 Surface Wash 4 6" 75 psi 6 Wash Water Waste 4 1611 10 psi Motar Ooeratorl The motor operator for the 20" gate valve at the Raw Water Pump Station shall. be E -I-M Type L as manufactured by E. I-M Company, Ina,, Houston, Taxas, or equal, and shall be of proper size to oporate the valve, Operator shall include electric motor, gearing, torque and limit switches, and built-in reversing controller type motor starter, The entire unit shall be of submersible type construction, All goaring shall run in lubricant and ball or roller bearings shall be used throughout. The valve 20$-2 operator shall fitnotion to open the valve from a completely (hosed position, or vice versa, in a time interval of approximately four (14) ninutes when under a pressure differential of 175 p9i, A handwheel shall be provided for manual operation. The valve opor- ator shall be responoivo to electrical control. at all times and the hand- wheel, shall not rotate during; motor operation. The operator shall have double torque switches for protection during both oponiog, and closing cycles. The operator shall also be equipped with a four train geared limit switch, The electric motor shall obtain full speed before the stem nut in both the opening and closing direction. The motor shall be suitable for operation on 3-phase, 60-cycle, 20£3-volt service and shall be of the high starting torque type, 4aximum motor speed shall be 1800 RPM. The operator shall have a built-in .reversing controller with 3-phase overloa:, protection. There shall be cover mounted a 11AND-OFF'-AUTO selector vwtitch and OPEN, STOP and CLOSE pushbuttons. Control voltage shall be 208 volts A.C. The operator shall be equipped with a space heater in the limit switch and contaotor compartment. Bo T sta at s Valves shall be carefully handled and lowered into posi- tion by mechanical equipment in such manner as to prevent damage to any parts of the valve, Valves shall be placed in such position as indicated on the Plans with the stem in a true vertical or horizontal position, and securely held until all connections have been made. Flange valves shall be set in position with the flange facing so that when bolted up there will not be caused an undue strain on either the valve jr the connected piping, Caskets of proper material and thickness shall be placed in posi- tion as the valve is being centered, The making of bell and spigot, joints and of flanged connections, the running of copper tuning to hydraulic valves, eto,, shall conform to the applicable sections of the Specifica- tions. END OF ITEM 208-) 1911 N0. 20- _ C iCK VATAIM A, 0erQr~alt This item covors the furnishing and inatallillp oi' a 1611 chock valve for the Raw Mater Pump discharge line, The valve shall be installed at the location shown on the flans in such manner to prevent damage to any parts of the valve and to prevent any undue strain on either the valve or the connecting piping, B, Dgpoantiont Check valve shall be of the tilting diao type, It shall be a Chapman List 23f check valve. The valve shall be furnished 4rith an external indicator, Alemito fittings for lubrication of the disc pivot shall be provided. The valve shall be designed for 300 psi working prey- sure and 700 psi hydrostatic tASt pressure, Fl.nngos shall be 2501,ASA flanges. Valve body shall be constructed of first quality cast iron, The diso shall be constructed of solid bronze or oast iron with browi, facings, Seat rings shall be made of bronze and shall be renewable, C. Ea nt"ngi Check valve Shall be cleaned to bright metal and given a shop coal; o ' metal protect•te paint which shall, be either Pittsburgh No, JC-3002 lead chromate or Pittsburgh tdo. UC-32200 zino chromate. END Or, ITMA 209-1 UM NO. 210 BUTIMIFLY VALVES A. General: This item covers the furnishing and installing of all butter. fly valves required for the project. Butterfly valves shall be installed at locations shown on the Plane and in aecordanoo with these Speoificatione. The valves shall be equal to those manufactured by D-1-F Industries, Ino., The Henry Pratt Company, or an approved equal. Valves shall havr in operat- ing device ar3 listed horeinunder. The required butterfly valves are shown in the tabulation hereinunderl however, it :shall be the Contraotorls responsibility to furnish, when re- quired, valves with the proper steel extensions, supports or brackets and all other veilve appurtenanoes required, wherever shown on the Plans and required for the operation of the pl&nt. B. Vale "eguired: Item Location Number Size Description R u s e y 11 Wash water line 4 16" Flanged end - 50# W,P., to Filters Hydraulic operated from Operating Table. Inlet & Outlet 2 36" Flanged _ 25# W.P, to Clearwall with Handwheel for operation Co 3_utorf'1 alve: The valves shall be oast iron, rubber seated and shall ooriform to the Amorioan Water Works Association Standard Specifics.. Lion for "Rubber,-Seated Butterfly Valves", Designation C504-58. Valve 'call be designed for the working pressure as speoified above and a maximum >>lpe line velocity of eight (81) feet per, second, Valves shall be equipped with operators as specified above. All valves, including hyd:,qulic operated, shall have handwheel for operation. D. ; rAu]ie Cylinclers: Hydraulic oylinrlcrs shall be furnished for valves as indicated hereinabove. The oylinder shall be rigidly supported from the valve body. Hydraulio oylinder shall comply 'with A,W.W,A, Standard 5peoifioaticn 0,504.5B, Section 11.5„ A suitable indicator shall be attached to the cylinder or valve body which wiYL show the valve position. Provis .,n shall be marle for transmitting the valve position to an indicating dial on the Operating Table, This arrangement shall be "Electrically Operated Valve Position Indioator , as manufactured by B-I«F Industries. Pressure for operating hydraulic cylinder shall he a minimum of 45 pounds to a'maximum of 60 pounde per square inch. Pressure against valve also of the 161' filter wash water valves will be 50 psi maximum. .`'.10«l Eieta latkw valves shall be carefully handled and lowered into posi. ton „I by meohanioE.l equipment in such manner as to prevent damage to any parts of the valved Valves shall be placed in such position as indicated on the Plans with the stem in a true vertical or horizontal position, and securely hold until all connections have been made. Mange valves shall be set in position with the flange facing so that when bolted up there will not be caused an undue strain on either the valve or the connected piping. Caskets of material and thickness specified shall be placed in position as the valve is being centered. F. Paintinao All butterfly valves shall be thoroughly cleaned of all rusty mill soalst and other foreign material and given a shop ooat of metal protective paint which will be either Pittsburgh No. UO-,02 lead chromate or Pi~tsburgh No, UC-32200 zinc chromate. LAND OF ITLM 210.2 IT_w ?lam ;,SLU1Cg GATU A+ 2enepal: Sluice gates, complete with operators, shall be furnished and installed at locations shown on the Plans, They shall be installed according to the manufacturer's recommendations and in a workmanlike manner, Coates shall be carefully handled and attached to the walls to prevent any damage to the gates and to eliminate any distortion or bindang which would affect the proper operation of the gatoaa Floor stands and/ur hydraulic cylinders shall be securely bolted to the eonorete floor. Sluioo gates are of the flat frame typal they shall be secured to the concrete walls by anchor bolts in accordance with tho manufacturer's shop drawings, Anchor bolts shall be planed at the time of pouring the walls, by means of a rigid template attached to the exterior face of the forms whioli shall hold the bolts in exact position so that the sluice gate frames will fit properly when installed. There shall be a gasket between the face of the eonorete and the flat fromel gasket shall consist of two (2) layers of 300 tarred felt or other material to compensate for irregularities in the concrete and insure a water-tight installation of the sluice gates. Be umber e u rO For the convenienoe of the Contractor, the required sluloe gates are listed belowl however, it is the Contractor's responei- bility to determine th;a accuracy of the tabulation, Item Location Number Size Des(%ription 1 Influent to Filter "a uj.ro - 11-37 71'4' Unseating Pressure- 10 ft. Hydraulic operated from operating gable with a position indicator on cylinder and Operating Table. Gates shall be Rodney Hunt, series 140, or equal. 2 Influent to Settled 1 10+6" x 3'„0n Unseating Pressure- 10 ft. Water Flume Handwheol operated floor stand and Extension Stem. Gate shall be Rodney Hunt, Series 140, or equal. 3 Influent to First 2 31-011 x Y -O" Unseating Pressure- 4 ft. Stage Flocoulators Self-contained with hand. wheel for operation. Gates shall be of the general design as the Rodney-Hunt Machine Com- pany, Series 140. 21.1..1 C. Desoriptiont All sluioo gates shall be of the flat frame, rising stem type having adjustable side, top and bottom wedges for seating and unseating pressures. Sluioe gates shall be similar to Rodney Hunt Machine Company, or approved equal, D, Frames Frames shall be made of oast iron with bronze seat faoings, The roar face of the flange shall be machined and drilled to be attached uu the concrete, and the front face of the flange shall be maohined to take the sluioe gate guidon. E. Digs: The disc shall be made from oast iron with horizontal and verti- oal ribs and bronze sent faoings. F. Acyiju.p tale t, ac e = Adjustable wedges shall be made from solid bronze with sol,'.d. bronze adjusting bolts. Wedges shall be I'notened to the disc with oadmtum plated steel studs with bronze nuts, p. Opg-rt~jtJIW, S~~rt~t The gates shall hava rising stems Of sufficient si,e to withstand, without book ling, the whole thrust due to operating the gate under maximum operating hood. The stoma shah, be of cold rolled steel. Stems shall. be furnished with atom guides as required, All stem guides shall be bronze bushed and shall be adjustable in two directions. H. Udr Ulio Cytiz7 er0s Nydrau,lio cylinders for operating sluioe gates shall comply in every respect to the requirements for hydraulic cylinders in Item No. 208 . "Gate Valvon". I. eintingt Sluioe gates shall he cleaned to bright, moral and givotl a shop coating of Inortol Rustinhibit.ve Primer No, 621. END OF ITEM 21.1-2 ITEM N0. 212 _ r .f AI;~INO.ANO PIPrWORK _ _.r, _ . A. 9enerAl; This item governs the furnishing and installing of all piping, The Plans show sized and general arrangement of all pipes, responsibility for furnishing exact lengths of the various pipes for exact "makeup" and for providing special items as may be required to simplify or facilitate the installation, rest with the Controotol,. All pipe hangers, supports, or other devices required .n the installation of pipet fittings, valves, meters, or other similar appul,tenanoes shall be furnished and installed. 8xoavation and preparation of the trenohes shall conform to the specification item "Earthwork". H, grLsllrlon I',i a an Fit in at (a) ael~l, arld„, p of pjai Cast iron pipe shall comply in all respects with Federal Speoifi.oati.on WW-P-4;la, Types r and 1110 including wall thick- ness and weight of barrel. The joint shall be Type I for caulked joint and Tygje III for mechanical ,joint, "Tyton Joint" as manufactured by United States Pipe and Foundry Company, and/or "Fast-Tite" as manufactured by Amerioan Cast Iron Pipe Corq)any, will be aoceptable. Pit oast pipe shall oonform, including wall thickness and weight, with Federal Spnoification V1W_I1_421a. Class 100 pips shall be used for low pressure service. High pres- sure lines shall L, of Oland 200, high service lines are those lines on the disohargo side of the high service pumps, such as the surface wash line, (b) Flanged A.inet Flanged pipe shall conform to the requirements as set forth for bell and spigot pipe above. Wipe shall have Class 125 flangee. (c) L,lan&eLxitti l (1) Low Pressure Cervioet [Flanged fittings shall be American Standard, Class 175 in oonformanoe with Amerioan Standard Opecification B16.1. Fittings shall have a minimum working pressure of 86 psi and in no event shall the wall thickness be less than that specified for Class B fittings, (See AWWA C100_55). Flanges shall be drilled in accordance with ASA Class 1254 (2) H.t$4,rurQ Servi~et In general, the flanged fittingn shall conform to AWWA Specifications 0100-55. Fittings shall have a minimum working pressure of 200 psi and in no event shall the wall thickness be lees than that specified for Class D fittings. Flangea shall be drilled in, accordance with ASA Class 125. (d) el an(Lzp ot. F~ tt~gt Cast iron bell and spigot 4!Mirgs shall conform to the speoifications of the American Water Works dsAooiation Designation d 100«551 Fittings lose than 12" shall be Class "D" while fittings larger than 12" shall be Class "D" for low pressure service and glass "D" for high pressure service, K2.1 (e) inn. jard,Coatings All cast iron pipe ancf vast iron fittings shall have an inside cement mortar lining conforming with American Standards Association Specification for cement lining for cast iron pipe and fittings (A21,4-195)), or oonformi.ng with manufacturers standard specification for seal-oop,ted "Ensmeline" Lining, or shall oonform with ASA 21.4 except for the thickness of the lining which shall be one half (1/2) thickness specified in ASA 21.4. Outside coating forall cast iron pipe and fittings which are to be installed in an exposed position shall be thoroughly cleaned of all rust, mill scale, or other foreign material and given a shop coat of either Pittsburgh No. UC-10002 lead chromate or Pittsburgh No. VC-32200 zinc ohro- mate, This coat of paint may be applied in the field with same oleaning precautions as described above. Outside coating for buried oast iron pipe and fittings shall conform with American Standards Association Proposed Specification for "Coal-Tar-Dip Coating for Cast Tron Pipe and Fittings", (A210-1940). (f) Yiotaulio Q4ti_ ngs; Viotau],io ooupling~3, where shown for oon• nootion of oast iron piping, shall be Stylo 449 as manufactured by Victaulio Company of Amerioa, unless otherwise noted on the Plane. (g) I__ win ~a~t rron_Piaet Cast iron pipe and fittings shell be handled in such a manner as to avoid shook. The pipe coating shall be pro- tooted insofar as possible, pipe shall be kept free from dirt and other foreign matter. Pipe and fittings shall be aligned and maintained in the required lines gild grades with joints centered and spigoto home. All pipe shall be carefully inspected for defects and rung with a light hammer to do- toot cracks. Any defective, damaged, or unsound pipe shall be rejected, All field cuts shall be done in a neat, workmanlike manner without damage to the usable section, All lumps, blisters, and excess coal tar coating shall be removed fret the bell and spigot ends of pipe prior to assembly, and ends shall be wire brushed rind wiped clean and dry prior to pouring. Packing shall be of the proper dimension to center the spigot in the bell. Each strand of material shall be driven home prior to placement of further strands. Material shall be permanently packed into the joints with suitable yarning tool, leaving a minimum of 2-1/2 inches of depth in the bell for the lead Joint material, Lead shall be heated in a melting pot kept near the; joint to be poured, brought to proper temperature so that, when stirred it will show a rapid change of color and so that when poured into the joint space it will insure a perfect joint, Dtfore pouring, all soum dnall be removed, Joint runners used in pouring the lead joints shall, fit snugly against the faces of bell and tho o,n,~;i,de of the pipe and shall be tamped with clay at the pouring gate to pot it the filling of the joint evsn with the top of the bell. Each joint sh,0 I. be made with one pour filling the joint apace, After the poured J0.0, has cooled to the temperature of tho pipe, the lead shall be oaulkod by means of pneumittic tools or by hand tools, until thoroughly compaoted, making wateviiir;ht joints without overotraining the bell. Flanged connections shall 1x, made by means of crootion bolts and drift pine, without undue "forcing", and with no restraint, on end of pipo or fittings which would prevent an even and uniform proesurc on the gasket, 21.2-2 Pipe and .fittings shall be free to move in any direction while bolting. Bolts shall be uniformly tightened around thj circle$ with bolts in same direction, 0. Steel l 11 (a) a er 1; Steel pipe shah, be in accordanoe with the followi,rij upeoifioations of the American Water Works Associations (l) Tentative Standard Specifications for Fabriouted Eleotri,ally Welded Steel Water Pipe, Designation C201-80T. (2) Tentative Standard Specifications for Mill-Type Steel 'dater Pipe, Designation C202-60T, (3) Standard Specifications for Coal-Tar Enamel Protective Coat- inge for Steel Water Pipe, Designation C203-57- (4) Standard Specifioat,ions for Field Welding of Steel Water Pipe Joints, Designation 0206-57, (b) ortlnx Pressures; Steel. pipe for low pressure service lines shall be designed for a minimum working pressure of 100 psi, Steel pipe for high pressure service at the Raw Water Pump Station shall be ftnigned for a mini- mum working pressure of 250 pai. Pi Di ~mt s P1pe dioimeters shall be as followss Diamoters for ' DO 4" through 17" sha nominal diameter as listed in 'table 5 of the Stand- and Sp-joifirations C202-60T, Diameters foz M" through 36" shall be actual outside diameters. (d) Unimu i°kngssesi Pipe shall have minimum thicknesses as followss biamotcr l xknneess in Inoh2a Minimumm i ii 00 si.. 150 i 2~S, 6„ .1 5 .188 .250 6„ 4172 ,218 .250 •172 .218 .250 l 1.291 o" .188 .218 ,279 " .188 .250 f12 .188 ~2r0 3 141.6" 6188 .250 f375 18" 188 375 11 2~" ,1,88 .28 9438 3011 $188 0313 0500 36„ 0188 .375 .625 421, 9250 #438 ,625 •250 +500 ,62.5 48" 013 .563 .750 2x2.3 Minimum thiokness of re6ixoers shall be for the diameter of largest end. (e) am31 girth seams, except in fabrioated bonds, shall be a minimum distance of 20 feet apart. The angular change at miter welds in elbows shall not exceed 15 degrees. The maximum number of longitudinal seams shall be as follows one seam for b" to 20"r two seama for 22" through 481', (f) Shan jw' =i Complete shop drawings shall be submitted in accord- ance with "Information and Special Instructions to Bidders". (g) Anahur singes Where shown on the Plane, anohor rings shall be supplied on pipe through oonorete walls. Rings ehull be of 11' thickness for pipe up to 30" and 1~" in thickness for pipe greater than 3011. (h) i e Co of n s pipe shall be connected by butt welding, flanges, or Dresser Couplings, as indicated on the plans, Ends shall be prepared for the particular, type of connection to be used. Flanges for pipe 24" in diameter and under shall be in accordance with ABA Standard for Steel Pipe Flanges, drilled to ASA Class 250. Flanges for pipe larger than 24" in diameter shall be forged for ASTM-A-181 steel to dimensions shown for Large Diameter Rolled Steel Flanges, 250# American Standard as given in Catalog #423 of the Taylor Forge and Pipe Works, Dresser couplings shall be Style 38 Dresser Couplings as manu- faotured by the Dresser Manufacturing Division of Dresser Industries, Ino, Where shown on the plans a joint harness shall, be installed aoross the Dresser Couplings as detailed on the Plans. (1) oati s All steel pipe shall be coated in accordance with the American Water Works Association "Tentative Standard Specifications for Coal-Tar Enamel Protective Coatings for Steel Water Pipes", Designation C203 and 0204, (,j) Mina Steel pine. 411 and Largers Steel pipe shall be installed with flangad ends, Dresser Couplings, welded aonneotions, and screw con. neotions, all as indicated on the Plans and provided in these speoifica. tiona. All piping shall be thoroughly cleaned to remove dirt, dust, rust, greaae, and other foreign matter prior to laying, Pipe in trenches or otherwise shall be brought to the required line and grade and hold securely in position while all connootions are being made. No displacement of the pipe which would cause undue strain on the joint will be permitted. Flanged oonneotions shall be made by means of ereotion bolts and drift pins, without undue "forcing", and with tic restraint on the ends of the pipe or fitting which would prevent pressure from being evenly and uniformly applied on the gcsket. The pipe or fitting must be tree to move in any direction while bolting. Bolts shall be gradually tightened, each in turn, at a uniform rate around the entire flange. Flange bolts shall be installed with bolt heads An one direction, 212-4 All field welding of stool pipe shall be dono in accordance with the mr.nufaoturerfs reoommendations. All steal pipe connected by screwed fittinrn shall have all burrs removed by reaming prior to threading, Screw joints nhall be made with graphite and oil or an approved graphite compound, applied to male thread only, Threads shall be full out, and not mire than three threads on the pipe shall remain exposed. Caulking of threaded Joints to prevent leaks will not be permitted. Unions shall be provicod where required for dis- connection, Changes in pipe sizes shall be made with reducing fittings; the use of long screws and bushings is prohibited. All piping shall be supported from concrete structures as indioated on the Plans or as required for proper installation, I), 1.»U S1 ,a d r tt1__.Ixon P a Ei1 .ul (a) Pi et Unless specifically called for on the Plans all steel pipe, 6" and under, shall oonfprm to ASTM Specification A120-611 T lack and Hot-Dipped Zino Coated (galvanized) Welded and Seamless Steel. Pipe for Ordinary Uses". Pipe shall be standard weight unless otherwise noted. (p) Genuine Wrou~h yron Pibet Where indicated on the Plans, genuine wrought iron pipe shall be fur=lshod conforming to ASTM Specifications A-72-59T, Pipe shall be galvanized to meet the requirements of ASTM Spsoi- fioation A-153-61. (o ) ~~i~~t (1) So, rewsdt Screwed fittings for steel and wrought iron pipe shall be American Standard 150'' Malleable Screwed Fittings (ASA$ B16-C) galvanized, (2) a e t Flanged fittings shall be oast iron and shall meet the requirements of the American 125# Flanged Standard Spooit'ioatiun, Com- panion flanges shall be 125# ASA oast iron threaded flangos. (3) Welde t Welded fittings shall be of the weight comparable to the line in who they ate installed, Flanges shall be 150# slip-on flanges. Fittings shall be seamless steel conforming to ASA Specification B 16.9 and ASTM Specification A-2344 Slip-on flanges shall be forged stool conforming to ASA Spooifioation B16-0 and ASTM Spooifioation A-1$1. Butt welding ells shall be long radius. (d) 90jq,nAt Unions for screwed piping shall be 150# Standard Malleable Iron Galvanized, brass seat, ground-joint unions, equal to Cram No. 1280. (o)ll~,~in 31 1111 and Wrou h+. T„„n p+~nt Pipe shall be installed with end conneotions as may be indicated on the Plans or approvers by theFnginser. All piping shall be thoroughly cleaned to remove dirt, duet, trenohas# orlotand all other herwiso, shall obeibrought rtolthei required line and grade and 212.5 held securely in position while all conneotions are being made. No displace- ment of the pipe which would cause undue strain on the Joint will be per- mitted. Field welding of steel pipe, if any, shall be done in accordance with the American Water Works Association Specification C206-57r "Field Welding of Stool Water Pipe Joints". All steal pipe connected by screwed fittings shall have all burro removed by reaming prior to threading, Screwed joints shall be made with graphite and oil or an approved graphite oompound, applied to make thread only, 't'hreads shall be full out and not more than three threads on the pipe shall remain exposed Unions shall be provided where disconnsotions are required. Changes in pipe sizes shall be made with reducing fittings. piping shall be fitted together in a tight and workman- like manner, and properly supported or anchored. (a) Gent Concrete pressure pine shall be used at location shown on the plane, Pipe may be either Reinforced Concrete Pipe - Non-oylinder Type or Concrete Cylinder Pipe - Modified Prestressed, (b)$4rste Pines Reinforced concrete pressure pipe shall be in accordance w th the American Water Works Association Standard Speoi- fications for Reinforced Concrete Water Pipo--Nonoylinder Type,, Not Pre- stressed" neeignation C302-57. The pipe shall bo designed for minimum inter- nal pressure of 100 feet of water and for external loads as determined from the Plans. Contractor shall furnish all fittings, specials and steel collars for connecting to other, types of pipe, (c) Cop4rn der j=s Concrete cylinder pipe, modified pre- stressed Tor pro-tensioned reinforcement) shall consist of a welded sheet steel cylinder lined with a dense concrete lining and around whioh there is placed reinforcing barn wouna helically under measured torsion, with a dense concrete coating covering the cylinder and the bars, and with stool joint rings of the bell and spigot type for rubber gasket. The pipe and pi e fittings shall comply with the Federal peoifioations S5-P-0 , "f'- ipei p ure Rs or sd C or Pratensione r entitlsdt e Copies o.f they Fer$ie1 Speoifioationsiabemobtainerom the Engineer upon request. Contractor shall furnish all fittings, specials and steel oollar for oonneoting to other types of pipe, Pipe shall be designed for a minimum working pressure of 100 psi. (d) S,avi_ Conoret____ e„Pres.ure Pipe: All concrete pipe and accessories shall be laid and jointed in sthe man er herein specified in the presence of the Engineer, and subject to his approval. All materials found during the progress of the work to have oraeks, flaws` or other defects will be rejected by the Engineer, and the Contractor shall promptly remove from the site of the work. All pipe and fittings shall be laid and maintained in the required lines and grades and with all joints centered and spigots home. Pipe shall be laid to within two-tenths foot of true alignment in any fifty foot section and to within four_oriewhuir;Nedths foot of true grade at any point. Grade and batter hoards shall be m6"intained so as to insure accurate placement of the pipe. 212-6 Caro shall be taken by the Contractor in maktng field ,joints. Humping of the pipe in the trench will not be permitiod, The endless rubber ring gaskets shall be properly lubricated with a ouitablo vegetable compound soap before they are stretched over the spigot end of the pipe and carefully sorted in the groove, without twisting, rolling, or arimping. After the pipe has been laid, but before baokfilling has been completed, the outside annu- lar space between pipe emotions shall be completely filled with cement grout. After the line has been baokfilled and initial settlement taken place, the inside space between the abutting ends of pipe shall be carefully filled with a mortar of stiff consistency and finished by troweling off smooth with the inside of the pipe. The mortar shall consist of one part Portland cement and two and one-half parts of sand. All foreign matter or dirt shall be removed from the pipe, and the pipe shall be kept clean by approved means during and after laying. Whenevor the work off' actually laying pipe stops, the open ends of the installed sections of pipe shall be closed with a water- tight diaphragm. F,RA44 S4ri4_r~4a Sew9r fine„- h Ry~lg„g{ = Reinforced concrete sewer p pd with rubber gasket Joints shall conform to the ourreAt specification for reinforced concrete oulvert pipe, A,S,T.M. Designation 076-57T, Class III, with the following additions, a. All pipe shall be machine made. b, Pipe shall all be Extra Strength# at Minimum wall thicknesses shall be 1/12th diameter, plus one (1") inch as listed in A,S.T,M. 0-76-17T, Table III, Wall D. d. Pipe shall be steam cured in accordance with method proscribed in A.S.T.M, Specification 076-57T except that the MAM curing time may be reduced to not less than 12 continuous hours. Pipe may be transported to the job at any time within three days after the prescribed steam curing period provided it successfully metaa all physical load tests and other requirementso e. Connecting Joints of reinforced concrete sewer pipe shall be of the rubber gasket type. The ends of the pipe shall be manufactured on acourately machined metal rings of heavy do ogn to insuro aoourate and concentric ;jo,intso These rings shall be left on the pipe sufficiently long after manu- facture for the pipe to hold its true shape. All Joints shall be madi with a flexible compression type rubber gasket. The form, type, and size of the gasket shall be Press-Seal, Type #1 or WH as manufactured by the 0oodyear Tiro and Rubber Company or oqual. The Prose-Seal rubber gasket shall truly conform in size to the spigot end of the pipe and shall be firmly connected thereto with an approved rubber cement compounded for this purpose. 212-7 f. Reinforced "Infiltitef, Concrete Pipe as manufactured by Gifford. Bill Pipo Company is oonsiderod, acceptable, All pipe shall be testod and inspected at the point of manufacture in aooordanoo with the A.S,T,M, teat requirements and shall bear the initials or name of the manufacturer, the date of manufacture ;and the testing laboratory's stamp of approval, pipegasket exer- cised handling gtherubber •damaging concrete prevent joint the prubber ogaahall be skets and the ends of the pipe. Care shall be exerolsed to clean all dirt, rook or other foreign matter completely from the inside of the bolliq n;, grooves and the outside of the tongues or spigots, Any dirt or other foreign matter which remains in the joint might prevent a water-tight joint, Immediately before placing each pipe, the groove or bell and of the preceding pipe shall be coated with a lubricating material, flax soap or equal, approved by the engineers for that purpose. Mineral lubricants will not be permitted, The pipe shall then be assembled by pushing or pulling together with sufficient force to cause the spigot to enter the bell and be forced completely home, On all sizes larger than 2411 in diameter, the inside annular space provided for that purpose shall be completely filled with a plastic portland cement mortar to effect a smooth hydraulically olean flow. G, tai forced ConoreteJewpi .s Reinforced concrete sewer pipe shall be used for the wash water sewer beneath the pipe gallery and at other places indicated on the Plans. Pipe shall be in accordance with "Standard Specifications for Reinforced Concrete Sewer Pipe", ASTM Designation C-769 and in accordance with Item No. 1088. "Javier Pipe and Laying", of these specifications, ►~•~pPipo andd ass (a) o er Pi s Copper pipe shall be Types K, L, or No hard drawn copper tubing with Type K and Type L being used at pointn where rigidity is neoessary, Tubing shall conform to the American Standard for copper water tube, ASA Designation N.23,1 (b) in s Fittings `~for all copper pipe or tubing shall be "Wrought Copper Solder-Joint Pibtings as manufactured by the Crane Company, or equal, Valves in copper pipe runs shall be Mueller Streamline Valves, or equal, (a?@ a• 1 a -4on1 Copper piping shall be handled in such a manner to prevent flattsning or distortion, All bends in piping shall be by use of fittings. Ends of copper, tubing shall be out square, with the burr removed from the r+--,i of the tubing with a file or earaper, Joints shall be pre. pared fluxed, and soldered in aooordenos with the instructions of the manu_ faoturer, In general, all copper pipe shall be laid out square with the building without diagonal runs. Where copper tubing is run on walls or. ovilingal it shall be anchored by means of copper straps of approved manu» f Wure, Depending upon looation, copper pipe shall be of the type or olase necessary to provide true straight rune and adequate rigidity for any, unsupported lengths. 212.8 %onper pipe shall be supported on wall braokets to such position as will allow one straight connecting piece to the equipment it serves, Union shall be prov.,ded for each equipment oonnnotion. r. AebaatQa,.C_ement Pipet Asbestos..coment pipe used in re-routing the existing 12 ItTransite" pipe line shown on the plans shall conform with Federal Specifications 88-P-351, with latest amendmontop for Class 100 pipe. The pipe shall be as manufactured by Johns-Manville, or equal. The actual inside diameter may be less than the nominal diameter by not more than two and one-half (20) percent. Couplings shall be of the standard design of the pipe manufacturer and shall provide tight joints when sub,jeotod to 2j times tha working pressure designated for the pipe. Coupling shall comprise one asbestos-oement sleeve and two rubber gasketo. The gaskets shall be of a properly vulcanized rubber compound, uniformly smooth and round, and free of porosityo pitting, blisters or other imperfections. J, Joint a iala: or shall or tubular rubber rings, asbestos frop eltreated ppaper joints des jute* (b) sa i Lead for caulking shall oonform to ASTM Specifications B-29-43 for common "Desilverized" lead, The produoerlo name or identifioar tion mark shall be clearly oast or stamped on each pig of load. (o) 2asketa: Gas ets for flanged joints shall be of the bent quality insertion rubber and 1/1611 thick, They shall be full face. (d) QQJ&Z and Fluxes: Soldors and fluxes for copper pipe and fit- tings shall be No. 50, Crane Companyt or equal, Nuts flanged And for Wrenoh Head Bolts Dolts for Wrench Openingf ASA m BM2g193?. ando shall have hexagon nuts. K. Line and Gr de: All gra?city sewers and pump discharge pressure lines shall be laid on a untform grade and true line from control point to oon. trol point. The Engineer will, set line and grade stakes every 50 feet with out figures thereon. Gravity lines shall not vary from true line more than one tenth (1/10) foot nor from theoretical grade more than two hundredths (2/100) foot. Pressure lines shall not vary more than two tenths (2/10) foot from true line nor more than four hundredths (4/100) foot from the theoretical grade, The Contractor shall furnish and not all grade boards grade lines, plumb bobs and lines and measuring poles necessary for laying pipe within the toleranoc allowed, Grade boards shall be set at intervals not to exceed 50 feet, L. a ng: All tests shall be made as directed by# in the presence of, and to the satisfaction of the Engineer. All piping shall be tested at the available hydrostatic pressure under which the pavticular line is to serve and all leaks made good, END OF ITEM 212.9 ITTM NO .14 R PUMP A. on a : The Owner will purchase, under a separate contract, a vertical turbine type pumping unit completo with motor and motor starter. This Con- tractor will be required to accept delivery of the unit at railway oar, Denton, and shall unload, transport to site, assemble and install the unit in the existing raw water pump station as detailed on the plane. All con- nooting piping, valves, fittings, aleotrieal wiring, sto., required to install the unit as detailed in the plans and speoi,fiecl herein shall be furnished by this Contractor. A general description of i.he unit is as follows$ Capacity 5500 OPM Motor Horsepower 600 Discharge Column (51 length) 161+ Length of column pipe 6O ft. ± Overall length - Base plate to bottom of Pump 64f-6" B. ? 11 . nt The assembly and installation of the pumping unit shall be by this Contraotor, and shall be done in a workmanlike manner by per- sonnel who are experienoed in the installation of pumping units of this type. This Contractor shall :furnish four anohor bolts of size recommended by pump manufacturer for anchoring pump base plate. The base plate shall be leveled and grouted into place with gmbeoo grout. The unit shall be painted as specified elsewhere in these specifications. The pump manufacturer will make a final inspection and assist in making final adjustments at no coat to this Contractor. END OFD ITEM 213-1 TThf 0 211+ . CALaoN ,,rTCNG LG~UIPMrNT A. gS1 raI This item covers the furnishing and installing of equipment for the feeding of the ohomi.oal "Calgon" to two points of application as detailed on the Plane and specified herein, The equipment Shall be installed in the location now ooolapied by a rocarbonating machine which is to be re- moved and salvaged under this Contract. B. 5a_ lvaninu Reoarbona ert The rc,~^;'acnatSng equipment to t3 removed and salvaged consists of a natural gas burner, blower, and related piping, valves and aeoe,ssories assembled on a structural, steel frame, now installed on tine second floor of the existing main building, and 411 steel discharge piping from the reoarbonater to the recarbonation basin in the center of the exist- ing sedimentation basins. The reoarbonater and all piping and fittings con- nected bherevith shall be removed from the building and basins and turned over to the City of Denton for their disposal, It is antioipatedp due to the size of the unit, that the reoarbonater will have to be completely dis- assembled prior to removal from the building. Reassembly of the unit will not be required. C ers The calgon feeder shall consist of a 250 gallon plastic lined steel tank complete with following aooessories as detailed on the Planss 1/3 HP Agitator unit 1" filling Connootion 1" Drain Connection 2-1/2" outlet Connections 2:1/2" Rotameters 21/2+1 Rubber-lined Valves (cage glass (full height) calibrated in inches Tank shall be approximately 42.inehes in diameter and 51-inohes high, with provisions for bolting to a oonorot, pad base, and with all connections and accessories located as detailed on too Plans. Discharge piping from the tank to the points of application shall be I" Type I Polyvinyl Chloride plastic pipe, installed as shown on the Plans, The tank and accessories shall be as manufaotured by Proportioneers, Inoo, Providence, R,. I, All discharge piping and valves, and all accessory piping and valves that will be in contact with the chemical solution to be fed shall be plastic or rubber-lined. Plastic shall be Type T Polyvinyl Chlorido. END OF ITEM 214.1 TEM~fO,y21 - FXHAtIg WA K? 0 A Km.,yFATERS A. sroji This item covers the furnishing and inatallation of an exhaust fan in the eY{sting ohlorine scales room in the bAsoment of the main build. ing, an exhaust far, cn the roof of the main bu:l.lding to exhaust air from the fume hood in the now laboratory, a vent with automatio shutters in the west wall of the new laboratory, and of two (2) gas fired unit heaters in the proposed filter building. The units shall be installed at locations indicated and according to details shown on the Plann, H. Chlorine Room E alz t r i Furnish and iretall one (1) exhaust fan the door of the exist ng on chlorine scales room in the basement of the existing main building. The fan shall be installed on the metal door as detailed on the Plans, It shall remove the air from directly above the floor and exhaust it to the outside of the building. The fan shall be ILO Eleotrio Ventilating Company, Chicago, Ill,, Type PD 1239 Catalog No. 1259, or an approved equal. It shall be,equipped with a eoreen guard, gravity type automatio louvers, and a remote on-off switch for surface mounting, Power for the motor shall be 115 volts, 1 phase, 60 oyole. The fan shall have a oapaoity of 1000 CFM at J" static precsure. Fan motor shall be of weatherproof uonstruotion. Qa C. Pume H od ~xha110 ~ 1 Furnish nn d install on the roof of the main building a fume hood exhaust fan as shown on Plans. The fan shall be ILO Electric Ventilating Company, No. LyORF 122 power roof ventilator, or an approved equal. Fan shall have a oapaoi.ty of 1250 CFM at 1/8" static pres- sure. Motor shell operate on 115 voltsp 1 phase, 60 oyole, and shall be controlled by an off.,on switch mounted on the fume hood base. Duct from the fume h.)od to the fan shall be 1211 asbestos-ooment pipe. v► u a'i 9PGttert Furnish and install an automatio, motor-operated shutter, 32" wide by 161+ high, in the west wall of the new laboratory. Shuttor shall be Motor Operated Type US-717M as manufactured by U► S. Louver Corporation. Shutter shall be oonstruoted of aluminum with blades balanoed on bronze bearings and braes pinions. 5hutter shall have suitable frame for mounting in all 8" the wall. Motor shall be a sealed. gear unit suitable for operation on 110 volts, 60 cycle, 1 phase, and shall be interlocked with the fume hood e;~hausf fan so that when the exhaust fan is turned on the shutter will open. F. t eo Furnish and install two (2) gas fired unit heaters in the proposed filter building at locations indicated on the Plans, The heaters shall be Janitrol Catalog No. 67.0859 or an approved equal. They shall be complete with heating elements, burners, controls, splitter nozzles (Jani- trol Series 941359 or equal), deflection grilles on discharge, inlet screen assembly, blower, and motor and drive. Controls for eaoh unit shall consist of t gas pressure regulator, main shut-off valve, pilot gas valve, a full-off and fvll.on oleotrio valve con- trolling gas to main burner, room thermostat, all automatio flame failure 100; shut-off safety pilot, and a combination high limit and fan oontrol. 215.1 Flexible suspension hangers shall be furnished for hanging, the unit heaters from they roof bar Joists. Connection shall be made to the gas line supplying the existing filter gallery unit heater-e, and the line shall he extended to the new heators. END OF ITEM 215-2 r.TFM NO, 216 - LUMNIn'0 A. ne z i This item covers all material, equipmont, And labor necessary for furnishing and installing plumbing systems for tho laboratory furniture, consisting of hot and cold water piping, waste systigm, g,as system, eto,, as hereinafter specified and as shown on the Plans. ' Waste S-gjazi Was-,e piping to fixtures shall be sized as shown on the drawings, and, in case of location ohanges, shall be so arranged to give proper drainage, for eaoh fixture. All work done shall be in strict accordance with the City of Denton, Texas Plumbing Code, All waste lines shall be "Corrosiron" or equal, acid resistant pipe, Joints shall be made with asbestos rope and lead, caulked. All waste piping shall tie securely :ding or supported. Hangers shall be spaced not mores than 5 feet on center,10 Co Waterve„em: Connect to hot and cold water piping beneath the exist. ing laboratory table, as shown on Plana, drop beneath floor, and run to laboratory furniture, as shown. All hot and cold water piping shall be standard weight galvanized wrought iron pipe with galvanized malleable iron screwed fittings. All hot water piping shall be insulated with j" thick Fiberglas or equal, luw pressure sectional pipe insulation with canvas ,jacket. Gate valves for water piping shall be Crane No. 426. All piping, horizontal and vertical, shall be supported to prevent gagging and to pre- vent piping resting on equipment. Hangers shall be apaoed not more than 10 feet on centers and at all turns. Perforated strap hangers will not be permitted, D, 9i Connoot to existing gas line at, location sLawn on Plans# gas pip ng All shall be standard weight black steel pipe. 5orewad Joints shall be made with an approved jointing compound. Care shall be taken to keep inside of piping dry and free of dirt, cutting 'burro and other foreign substanoes, Gas cooks shall be Crane Co. No. 272, or equal, all brans square head plug cooks. E. Pa ntingt All exposed bare pipe, hangers, supports and equipment shrill be given one coat of metal primer and two coats of lead and oil paint of color selected by Engineer, Galvanized pipe shall. be given a coat of zino priner before other paint is applied. F' Tssts„d rG a jonn All pipe and waste lines shall be tested on Completion of the rough rk and before fixtures and trapm are rionnected, Any leacs, 10i .acts or d.fiolenoies discovered shall be repaired or replaoed, and tests rlhall be repeated until all defects ar(,~ oorreotod. END OF ITEM 216.1 1 i" IL?d o 2 :..A~t---.CQNDITI_ONINO AUCTc A. 92.6QraIi Furnish and install ehoet meta). ducts an ehomi on tho Plane between the existing duot in the hallway of the main building and tho now laboratory, Attention is called to the faot that an existing duot will have to be romoved, and that the existing duots are above a suspended oeiling. Care shall be taken to damage a minimum amount of the existing coiling. B, Shoot M It The duot sizes shall be as indicated on the Plane. Plane are generally diagramatio and Contractor shall make off-sets as required to install ducts in the places provided, Duct eizes shall oon- form to the latent ASH & VFW Ou,ide, and shall be hung and supported by approved hangers or supports for their entire length. B, BtA~ ~~B1= Furnish and install ,registers, grilles and outlets as indioas fimA on Lhe Plana and hereinafter speoifi,ed. Ceing outlets shall be 'Tuttle and Bailey PA, No, " damper, Door grille shall be Barber Colman AF core only, of size indicated on the Plans. D. n ulation: All duot .cork shall hays: one (111) inoh thick Fiberglas Vapor-Seal Duct Insulation. Insul-;;ion o.ial~ bo qr rv the surface of the duot with sheet metal ; ore 9 and :cheat mett . liNjra:. All ,joints) seams and fasteners shall be pointed ,p , ; , ,)i,th r;i! or Va or Barrier Adhesive1 roinfo.cerl witl) .f'~..i an, p , ,.et~t.'a END Gig" ITEM y 217-1 IT, Gbi NO, 218 . qmU 1- rCTRCUI,A 1018 PUt9p A. er ra1: This item covers the £u~~nishing and installing of a sludge recirculation pump in location shown on the Plans, oumplete with necessary valves, fittings and piping for pumping sludge from the new sludge draw-off vault to the existing rapid mix basin. Bs t The pump shall be Aqual to tho MOYNO pump manufactured by Robbins and Myers, Ino., Springfield, Ohio, The unit ohall be driven by a 1/2 horsepower (mitiimum), 440 volt, 60 oyole, ? phase motor through a variable speed motor pulley drive. The pump, motor and drive shall be mounted on an integral base plate and chAll be installed as detailed on the Plans. Pumping oonditions shall be as follows: Maximum Moyno Capacity Speed Road Minimum r e gov ~j, pMF&d Horsepower 1 L 4 8.5 450 25 1/2 C, D i i+: The variable speed drive unit for the pump shall be a Rot,)-Cone Variable Sneed Motor Pulley Drive as manufactured by Oerbing ManufAoturing Corp,, Elgin, Illinois, or approved equal. The drive unit she? be of size recommended by manufaoturer to provide an in'initely variable sp• )d over a 3 to 1 speed range,with maximum speod ac ehown in table above„ Complete drive unit, including motor, belt and pulleys shall be deaipned for eontinv.,ue operation. The motor steetsr shall be a oombination oirouit breaker type magnetic motor starter, size 0, in a N11"MA 4 enclosure, Allis-Chalmers Class 5759, or approved equal. The starter shall have 3--phase overload protection and shall have cover mounted START-STOP pushbuttun4 D. i ngt Piping from the pump to the rapid oAx basin shall be of galvanized wrought iron of size and with routing shown on Planoo Valves shall be as spsoified elsewhere herein. END OF ITBN 218.1 $f'CTI'L J [I - ARCHITFJ,CTURAL S,F CItPICATIONs riG---M-NO~.JL1 - MASQVRY A. Co~,f ~1ot^;,ks The work coveved under this item o f £ e i,neludos all labor, materials, equipment, and sorvieeo not esssap h aryeciforicaortiona reasonably incidental to the completion of all brick work, the backing, the partitiona, structural glazed tile, etc., shown or indicated on the drawings by notos or by hatching or specified herein. d. MsfAria-l -6 1 1, " ca Bricks Mace brick shall b e of one distinct colors a light rid Oxide. They brick shall be Aome-Dennett smooth, square-odge, 70 series smooth or approved equal. All face brick shall be of modular direensicns and uniform in size and the exposed surfaces shall be free from cracks, spalls and other im1m rfections. The oolor shall match that of tho existing light red color brick. 2. Common Drieks Common briok shall be hard, burnod, merchantable, stiff mud or~' ar~'"y reused standard brick which will comply with the A.S.T.H. Specification C-62-30 for Grade b clay common brick. 3. 1tructural C1a Tiles Structural clay the shall be Acme Elgin: BuP a"ani-Cinish, 71 series, smooth bufstructure facing tile, or approved equal. 4. Portlan Cemonts Portland Cement s,iall be as specified under Item, "Concrete e for Structures", 5. Times Lime shall be equal to "Dittlingers" or to "Austin White Lima , Aims shall be made into a stiff putty before used in any mortar. Putty made from hydrates; Lime must be soaked for 24 hours; from pulverized quick lime, must be thoroughly coolod and cured for not less than 24 hours; and from lump lime, shall be slaked for not loss than Mio (2) weeks. S to 1 Sand shall be well graded in size, and ahall be froo from organic mattor. When dry, at least 97% shall be retained on a No, 100 sieve, and 80~ on a No, 50 sieve, It shall. ease a No. 8 sievo, and at loait 0 shall kn retained on a No, 16 sieve, 7. )Lat-urs Water shall bu .fresh, clean and freo from injurious amounts of minerals or organic substances, a. no ore and 'Pions Anchors and ties shall be heavil metal. Sheet meta shall be at least sevon.oi hths y oh wide an not lighter than 20 gauge, Mire shall bo at least No. 11)gauge, and ties of wire netting shall be strips at least eight (811) inehen long,, of ono.. half (1/211) inch mesh, No, 16 gauge wire fabric. Ties shall extend at 301.1 least four (411) inches into masonry backing and to within three-quarters (3/4") inch of the face of brick or tile, C. .gam lest The Contractor shall submit the following samples to the Engineer for approval prior to delivery of, any materiol.s to the job situ t 1. race brick - 4 of each color. 2. Olaz ed structural units . 2 tile. 3. Anchors and ties . 2 of each type proposed for use. D. Nan lAng anj StorSXet All masonry materials shall be handled in u manner to prevent unduo breakage or chipping. Mortar materials shall be delivered and stored in the original packages, plainly marked ,s.+,h the manufae+,urer s brand name. Mortar materials shall be stored in water.oroof sheds or on platforms raised free of the ground and proteate,I by tarpaulin covers, E, So4,,XXisio_,n~o_f Wrkt The Contraotor shall have in charge of the masonry work at al.l -5m s during construction a thoroughly competent foreman ;horoughly experienced in this type of the work, and under him there shall, be employed at toast one (1) experienced man in charge of mortar vn.ting. All men employed must be skilled and experienced in these trades. FO !='.otioni it Oenerali All masonry shall be laid plumb, true to line, with level and accurately spaced courses and with each course breaking joints with the course below$ Bond shall be plumb throughout; corners shall be plumb and true, Unless o'therwiae shown on the drawings or specified, the spaces around built-i-;n items shall be solidly filled with mortar. Work required to be built in with tha masonry, such an anohors, wall plugs, and accessories, shall be built in as the emotion work progresses, All seaffoldinp necessary for the installation of masonry shall be provided, maintained, and moved as required and shall be available to other trades required to execute work 7n connection with the masonry. All scaffolding shall be constructed in n safe and substantial manner and maintained in strict accordance with the requirements of City Ordinances, State laws, and insurance rules and regulations. 2. rio t All brick shall be damp when laid, Brick shall be shoved into place, not laid, in a full bed of mortar, All ho~izontal and vortical joints shall be complotoly filled with mortar when and as laid. The book of face course shall be plastered ahead of the backing with. a heavy coat of Class A mortar, This coat shall be carefully applied so as to form a continuous, effective barrier to the entrance of moisture. Spaces between face brick and concrete that cannot bo plastered shall be slushed full, Nail holes and other imperfections shall be jointed to prevent entrance of water. Vertical joints shall, be all of the same 301.2 width except for inconapiouous variations required to maintain the bond. All brink shall be laid in Class A mortar as hyreinatter specified. All exposed joints shall bo tooled to a donse, ooneave nurface, 3. Structural Clav Tiles Provision shall 1xi made for all dpeoial units as men be required to form all corners, -sturnsp openings and off.. total and maintain proper bond throughout the length of the wall. Mortar Joints shall be throo-eighthe (3/811) inoh nominal thickness with full coverage on vertical and horizontal face shells, All head and bed joints shall be filled and made tight. Vertical joints ohall be shoved tight. All exposed joints shall be tooled to a Qonse, eononve surfnoe. The surfaces of the walls shall be kept clean and free of mortar splotches, and all.,joint,s are to be made with a straight,clean line, Where conduits or pipes occur in masonry walls, same shall be "threaded" in as no chasing of the walls will be permitted. All partitions that, abut other walls except exterior walls shall be bonded or anchored thereto not less than every two (2+) feet in height. Interior masonry walls abutting exterior walls shall not be bonded thereto, Partitions or furring enclosing pipe spaces shall be built after the pipes are in place and have been tested to the satisfaotion of the Engineer, and proper provib on shall. be made for tying such partitions to preceding connecting work. ~"nitabl.e aiui proper recesses shall, be provided for built-in cabinets and junction boxes. The exao'. location and size of all such recesses, eta., shall be as required by the mechanical equipment; and this Contractor shall consult with and cooperate with the Contractors installing mechanical equipment of all kinds. Metal work, where required, shall be built in as the work progresses. All the partitions and furring of every kind must be thoroughly anchored in a most substantial manner to all abutting surfaces. Wire loops shall be placed in preceding the walls in which wire can be attached and extended into the horizontal jloints of a,eitions and furring, which attached loops shall be not more than two (21) foot apart in height. Likowise, all metal bucks, finished or rough, shall be securely anohored into the masonry, partitions and backing as it is built. Tile shall be set in Class A mortar. O. Mortars Proportions specified are in equal parts by volume, One (1) sank of Portlar.', Cement (q'r lbe, net) shall be considered equal to one (1) cubic foot, 1. CIA A Mortars One part of Portland Cement, Two and one-half parts of hydrated lime or stiff putty. Nine parts of sand, A slight amount of mortar color sufficient to aol'ton the grey or white of natural mortar shall be used for face brick, All mortar must be accurately proportioned and thoroughly mixed by hand or by machine to a uniform color, Fools and mixing boxes must be kept clean, and no mortar which is partially set shall be retempered for use, 3013 H. Li -ells Lintels shall be reinforced tile masonry or steel angles, or concrete, as detailed on the drawings, In proonating reinforced masonry lintels, care shO,l be taken to insure completo filling of cells with mortar and true alignment of the lintel with uniform mortar joints on exposed surfaces, Heinforoing rods shall be not less than one-half (1/2") inch in diameter and shall extend full length of lintel, and lintels shall have a minimum of eight (S") inches bearing on each side of opening, Lints le shall be adequately cured before handling and storage. I. Precast Concrete Trims Precast ooncrote trim shall be of Class AA concrete as specified in Item, "Concrete". The precast items shall be of the exact size and shapes indicated on the drawings and as required for completion of the project within the intent of the drawings. The precast trim items shall be steam treated, or otherwise cured, for a period of not less than four (4) hours, then aged under cover not less than 30 days prior to erection, These items will be rejected if evidence of any ohipping, cracking or crazing is found, J. CC tti and Patohinus Cutting; and patching of masonry required to accommodate the work of other trados shall be performed by masonry msohanios, K, N- teotions Surfaces of masonry not being worked on shall be properly protected at all times during the construotiot, operation. At suoh time as rain or snow is imminent and the work is disoontinued, the tops of exposed masonry walls shall be covered with a strong water-proof Membrane, well, secured in place. L. C-urinat In hot, dry weather, masonry walls, exposed to wind and s not un shall be sprayed several times a day with a flno water spray, Do mortar net for tl six e (6) y days withstanding larosion. M. Pointink and Cleani~s At completion of the work, all holes in joints of exposed masonry surfaces shall be filled with mortar and suitably tooled. All mortar drippings must be removed from prc,jenting surfaces of whatever kind, and the entire surface of all exposed face brick work and interior masonry surfacea shall be thorough cleaned, using a solution of "Drano" in water (one can to a gallon) and then rinsed with clear water. Under no circumstances is any masonry o'aaning to be done with any acid, N, fain i' i Masonry units shall be painted as specified under Item, "Paint and Painting". 0, Removal f E istin Ma onr Walls Remove existing brick and the wall north wall as shown on the contraot drawings. Patoh and repair the aide walls at the location where the end wall is removed. Match the existing tile a.s nearly as possiblo with the patoh work. Perform this work in a neat manner in order to leave a flush interior surface +rt this location, 301-4 P ~~,uut.t_. Y o Openin~in Cxistin Tda onr Wall' Cut u door opening in the d" tile,~north wall of the kitchen. Remove neaennary tile for tho opening, being careful not to brea1c any tile that will rernin in the wall, The tile that is used to fill in around the door frame it) to match existing the and the mortar joints are to match existing mortar ,points. Use bull nose the around the door frame. The work is to be clone in a neat workisan- like manner. END OF ITEM 3015 ITEM NO, 02 - FOAM CONCRETE ROOF aCK A. Scope oaf 1-orrk= The work covered in this item o~ the speoViaations consista of furnishing all plant, labor, and equipment necessary for in- stalling the poured foam oonorete roof deo3;, complo+o, including fiberglass formboards and steel sub_purli.ns, in accordance with tho drawings and this section of the apooifioatiuns, B. Materia].as 1. Sub_1?urlinss The steel sub-purlins shall be of the size indi- cated on the drawings and shall be out the proper length for bearing at each end. Sub-purlins shall be given one shop coat of paint. 2. Form ar.as The permanent formboards shall be one (P) inch fiberglass board 32-inohes wide, of the length roqui.rod. Form boards shall, be icoustioal fiberglass, as manufactured by Owens-Corning Company, or approved equal, 3, Re, infp.Wn Mesht Reinforcing mesh shall be galvanized welded wire, No s2 gauge wires, spaced four (4") inohes OX., shall be run perpendicular to sub purlins and NO, 14 gauge wires, spaced eight (8") inches OX., shall be run parallel to sub-purlins. 4, F2pm Cote s Foam -onorate shall. be MEARLCRETE or approved equal. The roam -concrete shall consist of Portland conont, water, Mearl.. ursto Foam, and other materials as recommended by lfborl Chemical Corporation. C. Installationi 1, Sub-Purling: Place and weld each sub-purlin to each main purlin, gist or sam at each contact point, using 3/4-inoh fillet welds placed on alternates sides of sub-purlina. One (111) inch stool tees ahull be used for supp6rt of all cross J(Ants in formboard, 2. Formboa as place formboards on flanges of sub-purlins with all ends or cross Joints supported by one (111) inch tee sections, Forms shall fit neatly on all foUo edges, 3~ Reinforoin I Ends of reinforcing mash shall ba lapped not lose than six " ,nohea, Sides of mesh Are not to be lapped. 4. Fo.oam,Conarootetes The foam concrete shall be mixed with water in accordance with the manufacturerla recommendations, beoks shall have a minimum of two (2") inches thick foam concrete and all surfaoes shall be s,,reoded to a smooth oven plane, Cants shall bo poured as indicated on the drawinga. The dock is to be alopod down to the west side in order to have proper drainage. r, ND OF ITEM 302.1 ITEM PMO - ft00FIA Nn SHEET hrTAL A, Saoi of Works The work covered by this item op the specifioations includes all plant, labor, materials and equipment and of performing all operations in connection with the installation of rooting and sheet metal complete, in accordance with this section of the speoif ioations and the contract drawings. B. Mate rialss Sheet Metals Unless otherwise specified or indicated on the drawings ~fal fflRshing shall be light cold-rolled tome red copper and shall weigh not less then 16 oz. per squaro .foot. Tho roof expansion joint shall be as above except it shall weigh not leas than 20 oz. per square foot. 21 So ers All Bolder shall be the beet grade obtainabls$ con- forming to A.S.T.M. Specf..fioations, and shall be composed of half pig lead and half black tin, all new metals. 3. FIuxs Solder flux shall be resin. 4. Roo_ fins The roofing materials shall comply in every respeot to the Barrett Speoi£ication, Type AA, 4-ply, roof for laying over gypsum roof dook. C. Installation: fla _o hinr~s Flashing shall be installed at all intersections of roofs with vertical surfaces, at all projections through the roof except at plumbing pipe vents, and elsewhere as shown on the dras:10nls or required to provide watertight protection. Exposod edgoo of all flamiing shall be folded back one-half (1/211) inch to provide stiffness, All flashing shall be Installed in accordance with the roofing manufacturer's requirements for a 20-year roof bond. 2. toof~' gs The roofing shall be laid in exact accordance with the manufacturer's directions by a roofing contraotor approved by the manufacturer. The Contractor shall furnish an acceptable Surety Bond Guaranty guaranteeing tho entire roof and flashing for a period of twenty (20) years. D. Lg ou~,ms Form downspouts, as detailed, and the faces of the conductors shall be corrugated. Support with bands of same material and secure to masonry with brass oxpannion bolts. Lock and sollor all downspouts to souppora in loontion shown to form watertight joints and finish smooth. Fit bottom of downspout into cast iron shoes or o Uo r fittings and caulk ,joint tight. Downspouts shall be set approximately 011e.half (1/211) inch from wall, 3n3-1 E, Miscellaseouss The Contractor shall furnish and install all items of miecallanoous sheet metal work shown on the drawings or otherwise re- quirod for the proper completion of tho ,job, whothor upecifioally referred to herein or not, F. _Cleanings Upon completion, all sheet metal surfaces shall be cleaned of all t~esins dirt, grease and other foreign matter, and all work shall be left in a neat, workmanlike manner. Downspouts shall be cleaned on inside of all foreign matter. END OF ITEM 302.2 IT1M t~'0.,j04 1fISCLLAt'GOUS 17,11s A. SoMs This item covers the furnishing and inatall.ing of all metal specialties and miscellaneous items as shown on tho drawings or speoified horoin. Certain items for installation of plumbing, heating, electrical work, and masonry work are covered elsewhere in these specifications. All miscellaneous items which ario to be built into the structures or buildings shall be furnished as required during the progress of the work, to the trades concerned. Standard commercial products which meet the general requirsmonts of the drawings and specifications and vary only in non-essential detail will be acceptable, if approved by the Engineer, 13. Metal ItemI Metal items shall be well formed to shape and size, with sharp roes or angles, Shearing or punching shall leave olean, true lanes and surfaces, Weld or rivet permanent connections. Where sot'nwe or bolts are usod, heads shall be countersunk. Castings shall be souni, free from warp, blow holes or other defects which impair their strength or appearance, EXposed surfaces shall have a smooth finish. Provide necessary rabbets, loge, anchors and brackets so the work can be installed in a neat, workmanlike manner. C, Th oldst Metal thresholds shall be aluminum or oast-iron, as shown on t e drawings. l(rresholds shall be set in a full bed of caulking compound and securely anchored to the floor with machine sarows in lead or expansion shields. Aluminum thresholds shall be Julius Blum & Co,, P") 6923, or approved equal. Cast iron thresholds shall be Mc% n7.Ay Iron works, No. 1155 or app,%.:ved equal. D Steel .1~nL t ice: Stool pipe hand rai':.s shall tin of the design and sizes shoti,~y on r1ra contract drawings, posts shall Ki anchored in concrete in cleevoo or Oiall be rigidly attached to steel stalra as roc;uire d, Sleoves shall W not Loss than four (411) inchors deep in concrete. Posts shall be cot in aueurato alignment and alcoves shall Le poured full of melted sulphur. Lsou.-choons shall be placed over all such anohorages. Welded joints shall W flush type and shall be ground smooth, C, YJeat erstrI inns Bronze or felt weathorstripping shall be installed where noted on the contract drawings, The weatherstripping shall be the product of a recognized manufacturer of such items, F StoolStairss steel stairs shall be of the design and size shown on the oontraot drawings, All material shall be now and of the sires shown, The steps shall be Irvico.Sofsteps) Type C-C9 with cast abraoive nosing, 1" x 1/8" bearing bar or an approved equal. All stairs are to have one handrail securely attached to the stair. All stairs are to k*i anchored at each and as shown on the contract drawings, The stops are to be equally spaced as shown on the ddawing. The stairs are to be coated with one shop coat of paint. END CF ITEM 3~~..1 XTia'M N0. 305 - DOORSSI?ltMGS ANp 1_ ~T t , Sgotgf ,Work: The work covered by this item of the specifications inolu~ioe furnishing all plant, labor, equipment, and materials and per_ formilfg all operations in connection with installation of doors and frames and windows, complete, in accordance with t his item of the speoifioations and the drawings. B. Aluminum Trjter►na i~t,e Prq ie~te.dj7ln owst All windows shall be Aluminum Intermediate P ojeoted, of the sizcc and typos shown on the Window Schedule on the contract plans, Windows shall be Ceoo-Sterling Aluminum Pro,joctod Window, or an approved equal. Mullions shall be standard aluminum 'r.mull.ionn with cover plates. Windows shall be con. struoted of extruded aluminum, shapes of thickness required to meet standard Speoifioati~n P_A2 of the Aluminum lfindow Manufacturers' Association. Sash shall, be accurately framed and smoothly ,joiners, free from blemishes, shall be satin finished and given a protective coat of clear lacquer. Windowa shall be stored, handled, and emioted so as to prevent scratching, distortion, marring, or damage of any kind, All ventilators shall fit tightly after erection, The necessary hardware for operation of the ventilators shall be furnished and installed with the windows, 01 Ho]. 4 Metpl_ Steel lk ores }fellow metal steel doors shall be of the I~ype and design shown on drawings and shall conform to the speoi.fi. cations for hollow metal industrial doors as manufao';ured by the Coco '3teel Prodtuots Corporation. Provide astragal for double doors, shall to given a coat of baked-on enamel at the factory, Hardware The shall be as specified under Item, "Hardware". Door size Shall be 3'_0" X 7+_01" X. 1..3/x"". D. 8toal Double doors: Remove the existing steel double dror in a careful manner in order not to damage the .frame or the doors. Rolooats the frame and doors as shown on the drawing. The frame and doors are to be installed in a neat workmanlike manner, The trams is to be set true in order that the doors will swing free without binding, Should the frame or doors be damaged the contractor will. replace, with new items, the damaged frame or doors. E,l___ush Mood Doort Flush type wood door shall match existing wood door and shall conform to Department of Commerce Standard CS171-500 Grade 1D for paint finish, Type of care construction shall to for exterior exposure oonditionab Hardware is specified in Item, "llardware". This door is to be installed in the north wall of the kitchen near the east side. The door size is to is 31-01" x V-011. Provide an aluminum threshold. 1F, Steel Door trb ,,fit Frames for steel and wood swing doors shall he formed to ohs general lines shown on the drawings and shall be constructed of No, 16 gauge steel shests, }Frames shall be Coco Hollow Natal Door Framea, or approved equal. 30-i 0. Freotont All doors and windows shall be erected plumb and true, with hardware left in proper working; order. They shall be set as the maaom y work progresses and shall have ndogUate anohors and tins to insure good installation. H~ Shen DrawinZg: Shop drawings for metal doors and frames shall be submitted to the Engineer prior to purohase of the materials. END OF IMN 305- 2 M1 I!O id WA71 ItFROOi':fNG Atfi CAt1LKIIV(} A. _cono= The work covered under this item of the apeolf.ications in- oludes all labor, materia:.s, equipment and servicoa required for flashing in masonry walla and oaulking all Alt,ide openings whom required. B. Mate iai st Eaeh type of flashing and osulkink, compound shall be submiTUea to thA Engineer for approval prior to its use in the building, 1, Flashias Plashings in masonry walla, where shown on the drawings, shall consist of a three-ounce copper sheet covered on each side with a bituminous compound, layers of asphalt-saturated-cotton fabric, or a heavy kraft paper. Flashing shall be "Waaco Copperseal", or an approved equal. 2. Ca Qkin r~~yom. udt Caulking compound shall be light colored, elastic, non~stair,ing and waterproof. It shall be "Armstrongls, or an approved equal, C. AM patio r 1. 'laehinast All flashing in masonry walls shall be installed in strict accord-' a ce with the manufaoturorra specifications, It shall be laP ed not less than four (411) inches at all joints and shall extend not loss than six (6v) inches on each side of masonry openings. Care shall be taken not to damage the flashing in any manner. Surfaces to receive flashing shall be smooth, dry, and free from loose particles. Vlhera flashingr, do not extend to the outside face of tho mortar joi.ntr weep holes shall be formed by inserting nails in the joints when it is laid, pulling the nails out when the mortar has set. Woep holes shall be placed approximately five (gr) O,C, 2. Cbulkinvt Caulking shall N used in accordance with the mane- faoturerrs printed recommendations. Surfaces of oast stone or masonry to be in contact with the caulking shall be cleaned and coated wi,'ch white shellso or a colorless, transparent waterproofing before using the caulk- ing, Where a suitable mortar baok-stop has not been provided., the back of Joint grooves shall be packed tightly with voile yarn, Caulking in pints shall be a minimum of one-half (1/2") inch in depth andono,.quarter ~1/4") inch in wid''h, Caulking shall be driven into joints to force out all air and solidly fill the groove end shall be free of wrinkles and uniformly smooth. Caulking shall be provided in the following locations" A$ Heads, ,jambs, and frames of all window frames. b. Arourd exterior door frames and other openings in the masonry prior to permanently attaching mouldings. a Under all exterior thre6olds - full bad. d. Other locations as required for waterproof consLruotion, D, C.l0AninZ1 A',.l surfaces marred by smears of caulking compound or other blomiahes shall be thoroughly cleaned prior +,o acceptance by the Owner, END OF IMM 306.1 126-M 00- Q - GL S5 AN_D IJ,A?M A. So.ode of Works The work covered by thi,b item of the specifications oonsiste of furnishing all plant, labor, equip;113nt, applinnooa and materials, and of performing all operations i.n connection with the in- etallation of glass, complnte, in strict accordance with this section of the specifications and the applicable drawings, and subject to the terns and conditions of the contract. n. Materialst 1. Cl©ar Shea+, blasat Clear window glass shall bo double strength "A" quality, equa], to L Eby-Nnens, 2. Putt t Putty for glazing on metal shall be of the best grade and shall comply with the recommendations of tho window or door manu- facturer. For aluminum sash, a glazing compound not requiring a paint finish shall be used. C. Oeneralt The sizes of glass indicated on the drawings are appeoximate only, a"" """nd the actual size required shall be determined by measuring the frames to receive the glass. All glass shall be faotory-labeled on each pane, and IAWIs shall not be removed until final approval ii obtained. D. Jiagtallationt Glazing in aluminum aesh shall be accomplished in accor,4anco w th the manufacturer's reoommendations, C. 1~oca tanoat Glass shall be protected aganot damage, After in. apeotion, any labels, paint, smears, and spots shall bo removed from the glass and the glass shall be washed clean. Damaged or broken glass shall be removed and replaced before acceptance. END OF IMH 307.1 ITEM rte _jon[tl~ A. Scoot This item of the srecifications inclurlon Curnishi.ng and intltalltng all hardware not apeeifiod under other items of these specifi- cations, complete, in strict aoeordance with this item of tho specifi- cations and the Applicable drawings. 13, Woric No_t_Inclu pdt Hardware for windows. C. nunorall Templates shall be furnished to the door manufacturer for hardwarn-to be installed in metal doorn. D. uulily i All door hardware shall be the product of a rooognizod hardware manufacturer and shall be that of the brand named or a brand approves[ as equal by the Engineer, ['s, i~'i~nLsht Exposed trim shall have a dull aluminum finish. C, si nt All knob, look and latch sets shall be heavy duty, mortised, Sohlago Plymouth rxisign, or approved equal, C. K.a,vY.i~n$ i All exterior doors to receive hardware under this item of the Iipeoi.fiontiona shall be keyed alike, Pivo keys of each type shall be furnished the Owner, [iKt- Butte A_nrrj R osi Exterior ([core shall have full mortised, heavy , o ba a~rinq butts. Stzo shall be 4.1/211 x 4-12" for outside doors, Butts shah. be Stanley, or approved equal., I, LajMi All doors without closers shall be provided with one (1) wall. mounLod door stop, Quality Ito, 1A or approved oqual, for each ].oaf of door, Stops shall be firmly set in the walla with anchor shields or toggle bolts, J. 1 a Fraro Iota 1-1/2 Pair Butts 1 Latoh Set 5chlago D52PD 1. Overhead Door Holder Qlynn-Johnson #(l ?l LUL, caticor, HAr rare I 1. Le n I, ytr kqt Install on doors and door frames at the same hoight throughout the building, The center of door knobs shall be forty-three (43°) inches above the finished floor, 2. Buttes Intermediate butt hinges shall be Installed with bottom of hinge forty (4011) inches above floor, END Or ITEM 3oa..1 A §90.00f Workr The work covered by this atom of tixs Specifications s Noludos furnrhing all plant, labor, and materials anal of performing all operations in connection with painting and finishing, completo, strict accordance with this section of the specifloations and the applicable drawings, C. C.eneralt The Contractor shall furnish all. labor, material, equipment and services for oleaning and painting of surfaces an followst 1. All. metal work (except stainless steel, aluminum, bronze, copper and load), including metal doors, bar Joists, structural steel, exposed piping, pumps and motors, and valves in pump room, and other miscellaneous exposed pipework, and miscollane,)us metal, 2, Exposed fiberglass formboard. 3. Walls and ceiling in the pipe gallery, Finish field painting shall not be applied to machinery, equipment or piping until operational tests are completed. 0. gorkm,nsuv All pairst and finishing materials shall be applied by skilled workmen and shall. be brushed or sprayed in even, thorough cc,ats, without runs, crazing, nags or other blemi'shes' All ooata, ra- gardlesd of the material, shall be thoroughly dry before applying succeeding coats, Full, drying time as recommended by the manufacturor of the partioulnr paint involved, shall be allowed botwoon coats, Enamel, paint, or shellac shall be properly sanded between coats, All products shall bo applied in accordance with the mnnufacturcr'n rocopurKindntions, 1) Ma to vi Isi All materials for painting shall be dolivored to the site' in un rokon packages bearing the monufooturor's nnmo and brand and shall be used without adulteration, In general, the paint and painting material's manufaotured by the National Chemical and Manufacturing Company, Inertol Co, , Benjamin Moore and Compfsny, ,Sho rain-Williams Company, Pitts- burgh plate Class Company, and Cook's are representative of the standard of quality that will be requirod and the paint and paintirsi; matorials nhall be approved by the Fngineor. Only the hlghest gr,ado pant of each manufacturer and that which is suitable for Uxa use intended shall be approved. Only thoso thi.nncsra and nolvsnto spooifled in the paint formulae shall be used. Moro than the prescribod amount of thinner may be adddd only to the extent of maintaining the minimum spreading rate dosignatod in each itxlividua2 formulation, B. C:olorv yam algn 1 to; r Tho color for all types of fininh shall match existing-- o orsand s al bu approved by the Engineer. shall prepare sam len from which to soloct roloao and finThe tor ishCandrsubmit saran to tho Lriginnor for ss7eation ant] approval, Contractor shall submit 3Og..7, three displays of each kind and color of paint to be applied to metal, masonry or other surfaces, The panols used for display shall be representa. Live of the respective types of surfaces to which thn uoveral kinds and colors of paint and stain aro roquired to be op,)1iod in the actual work. The walls and coiling of the pipe gallery are to Lo painted whito, F, Preparation of yurlaceet ~fasonrys These surfaces to receive paint shall be given a thorough zinc sulphate wash, and dried thoroughly prior to any application of paint, 2. Con retoi Brush loose material from concrete surface. No zinc sulphate wash is required when 1'nortol RAIIUC utility onamel is used. 3. Metal Surface I Metal surfaces to be painted shall be thoroughly cleaned of mi 1 sea e, rust and other foreign matter by scraping, chisels, wire brushing (hand or machine), flame oleaning, sand blast or other suitable means. All oil. and grease shall be removed with Naptha, Any old loose or scaling paint shall be entirely removed to bare motel. Dust and dirt shall be removed by dry brushing or air blast prior to painting. 0, SubnMO=et t Submerged metal inoludi.ng clarifiers, flocoulatora, weirs, surface wash piping, and/or other submorc;od.motal shall bo coated as follows$ First Coat Inertol Primer No, 626 (Shop coat) Second Coat Inertol Primer No. 626 (l`ouoh-up coat) Third Coat rnortol No. 49 'c'hick fourth Coat - Inortol. No, 49 rhiclc Fifth Coat Inortol No, 49 Thick 'rho total coating thi,oknosa after completidn shell be not loan, than 15 mills, Additional coats of No, 49 Thick will be required as necessary to produce this thicknous on all metal surfaces under this paragraph. II, alication af Paintt 1. Brush q licationf Only top quality hog hair or synthotio brist)o brushos shall be used. All paint shall bo applied so as to form a uniform film of a thicknosa which is consistent with the spsoiiiod coverage for the paint being used. Sufficient cross brushing shall be used to insure filling of All surface i.rro; ularitiee and complato coverage, Particular r care shall bo usod in painting in corners and other rostricted places to obtain uniform application. All final brushing strokes shall be made in the name direction and toward the previously applied paint. The final coats of enamel paints shall be brushed only enough to spread the coating evenly and avoid excessive thioknesa. 309.2 2. S r,~i AY_,A2pliaaationr When paint is applied by spraying, the air gun used shall be ndjuctable for regulation of the air and paint mixture. The equipment shall have a suitable water trap to r•omove moisture present in the comproseod air, Paint pots shall be equIppod with & hand agitator to keep the pair;t wolf mixed. All equipment shall bo thoroughly oleaned at the end of each day+s work, The width of the spray shall be not loss than twelve (12+1) inohos nor more than eighteen (180) inches, The pressure shall be suitable tor the type of paint used, Frequent checks shall be made to insure mainto nance of correct spreading rate, and the coating shall tie uniform without sags, runs, or "orange peal" effect. Special care shall be taken to see that edges, corners) and bolt heads are com- pletely covered and that there has been no bridging over the film. 30 Fetal or i All ferrous metal work of every nature shall be shipped w t a aotory priming coat, All exposed structural Steel shall receiva, in addition to the shop ooat, two (2) coats of white lead and oil, paint, All exterior steel, doors and window sash Shall receive three' (3) oonto in addition to the £aotory prime coat, The first coat shall be enamel undercoater, the second coat shall be one-half unditrooater and one- half enAn)l and the final coat shall be erta,nel"full body, Oalvanized iron work shall be washed with a vinegar solution and primed with red lead, after which two (2) coats of white lend and oil paint shall be applied. All other metal work shall receive, in addition to the shop coat, two (2) coats of lead and oil paint, This metal work oonsiots of all structural utool members, bar joists, metal doors and frpmos, piping, valves, and miscollaneous metals except aluminum, bronze or popper work, 4, Fiber Incss Exposed fiberglass formboirxds shall be painted with one 1 co~.~;, ~of primer coy "or and one coat of intorior flat oil paint. Fiberglas shall be paintaa the tiario color so the exposed steel. 5,y Concrot e [ ~v (}~alYervi The conovate walls anel ceiling of tho pipe alley are ac bo painted with two (2) coats of Tnortol RAMUC Utility Enamel iliat - Brush Ty'rio, Do not spray the walla or coiling, No undercoat is required, T~ Storafe ~r,lean-UUs The Contractor shall use one convenient location for keoping Q'11 materials And doing all mixing, etc, Floor of this space shall be properly protected with drop cloths. Oily rags arvt wasto shall be frequently removed from the buildl,ng and under no cirotun- stances shall they be allowed to accumulate. At the comp).dtion of the work, the Contractor shall clean off all paint npots, oil and stain from all surfaces and leave the entire project in a satinfar,tory condition. CND OF 1'1EM , 309-3 ITEM go. J10Z_1AJffi~AT0Tk)LF%NI. A. S,.g et This item covers the furnishing and installing of all labora. tory furniture and equipment as shown on the Plans and speoified herein, U• Qneralt All items of laboratory furniture speoifiod herein are taken from Kewaunee Metal Scientific Laboratory Equipment Catalog No. 56. Labora.. tory furniture of equivalent quality and style manufactured by Fisher Scientific Co. ,,r Uorroughs Manufacturing Co, will be considered acceptable based on approval of shop drawings. It is intended that all pieces of equipment shall be of the manufao- turerla standard £ixturesl however, soveral items must be assembled from standard parts. Work tops are to be of the depth and width shown on the drawings and reagent shelves are to be the depth required to extend to the wal'i. Work tops, curbs, and reagent shelves are to be soapstone as noted on the drawings and shall be continuous without joints to the grleatest extent possible. All sinks are to be molded one piece soapstone. Any metal fillers required shall be made by the furniture manufao'aurer. and installed tg. " o s luhe The boratory furconsists niture t of ?m furnished as a part the itemnt (1) Wall Sink Unit, 6011 long, 45+1 high, 25J,I deep, with 241, x 15" x 611 soapstone sink, soapstone drainboards on each side of sink, No. 354.6 gooseneck hot and cold water faucet, soapstone ledge and oplash bank, and overflow and trap. Kewaunee No. 211. (2) Double Wall Sink Unit, consisting of a soapstone double sink each compartment approximately 21" x 16" x 811, with drainboard each nido, No. 354-6 gooseneck ,faucet, soapstone ledge and splash baok, and overflow and trap, Kewaunee Unit Nos. 229 34 and 22 for base. (3) Wall Table Aesombly, 7P" long, 31" wide, 36+' high, with reagent shelf, eleotrio, cold water, gas, and air outlets, and noapatone table top and curb. Base of two Kewaunee No. 26 units. (4) Fume Hood, 72" long, 31+1 wide, oonsint~ng of Kewaunee Non. 36 and 30 bane units and a hood similar to Kewaunee No. 2110 with exception of length. (5) Wall 'f'able Assombly, consint,ing of Kewaunee base units Noe, 17, 16, 26, and 39. Assembly shri; have soapstone ourb and top, (6) Glazed sliding door cast for wall mounting 47" wide, 3011 high, 1611 deep, with two adjustable shelvos. Kewaunee No. 112. (7) Labo,-atory peg board, 20" wide and 301' high with 32 pegs, 310.1 The Plans indicate the extant and general arrangement of the labora- tory furniture, and no deviations to this will be allowed without the approval of the Owner. D, I stall do J 1.~stallation shall inaludei (1) Unoratings setting in plaoe, fittings, levelling up, trimming, scribing, and removal of all debris. (2) Service piping for hot and cold water and gas shall be furnished and installed according to Item 216, "Plumbing", of these Specifications, (3) Elootrio YA.Lring for all outlets, lights, and fume hood blower shall be furnished and installed according to 'item 4010 "Cleotrioal++, of these Specifications. prat u e e Provision has been made in the proposal for a 1unV sum amount to be used in the purchase of equipment for the laboratory, The Owner will select the equipment, consisting of such iteos as glassware, vacuum pump, balanoes, incubator, water still, eto „ snrl thei Contractor will purchase the equipment and deliver it to the Olwnere The lump sum amount provided in the Proposal will be adjusted to the actual coot of the equipment after it is purchased and delivered. END OF INN 310-2 ITEM 404'}11 . yINyL T111, FLOORING A. S,.o22e Works The work covered by this item of the speoifioations includes all labor, materials, and equipment required to install vinyl tile flooring in the new laboratory. D. at is s Vinyl tile shall be a flexible, resilient, durable tile, of uniferm all-vinyl compound construction and shall be mad"e without the addition of asbestos filler. It shall be compounded of the, purest resin and plastioizers, and shall have permanent, non-fading color pigments running through the full, thickness of the tile. It shall have a burnished, non-slippery surface which will not require waxing to maintain its lustre. Tiles shall be nine (9+0) inch squares, 1/8.d noh thick. Two contrasting or complementary colors or uhades, as selected by the Engineer from samples submitted by the Contractor, shall be used, Tile shall be Goodyear Vinyl Flooring, or approved equal. Adhesive cement for setting the shall be of the type recommended by the the manufacturer. C ,U es The concrete floor shall be thoroughly cleaned of all dirt, dust, oil, grease, and all other foreign substanoes, and shall be dry. file shall be laid in strict accordance with the manufaoturer's recommendations. It shall be thoroughly and continuously cemented to the concrete floor by means of an adhesive oement. The the shall be laid out from the center of the room in each direction, with all joints parallel or at right angles with the wall lines. The pattern shall be symmotrioally placed. Care shall be taken to make all joints flush# so as to present a emooth, continuous, even surface, free from gaps or irrogularities► Do Proteo son and Cs The the surfaces shall be adequately protected from damage until the floor is turned over to the Nver► Any damaged tiles shall be replaced by the Contraotor as required at the _'inal inspection, Before the floor is turned over to the Owner, it shall be swept clean, all traces of cement shall be removed, and the entire surface washed with soap and wator, rinsed and wiped dry. END OF ITEM 3111 ITgi 312 _ UTfIING A. 1STF1iI A, o et The work covered under this item of the npocifioatione in- aludes all labor, equipment, materials and services nooossary for or reasonably inoidental. to the erection and completion of all suspended plaster ceiling work where shown on the contract drawings, B, datgLi~a I 10 Metal .O r Metal lath shall be 3/8-inch, ribbed, expanded metal lath weighing not leas than 3.4 pounds per square yard and shall be of copper bearing steel coated with rust-inhibitive paint, 21 W : sr Wire for attachment of lath to supports shall be N0, 18 W&M gage galvanized soft annealed wire, Wire for attaching furring to main runners or supports shall be the same, except not lose than No, 16 in size. 3• Ch-fin ji Channels shall be ool,d-rolled steel and shall be painted with rust-inhibitive paint. Main runners for suspended ceilings shall be 1»1/2 inch oold-rolled channels weighing not less that, 47g pounds per 1000 linear feet. Cross furring members shall be 1/4•inoh channels weighing not leas than 300 pounds per 1000 linear feet, Wall furring mem- bers shall be the name as the cross furring members, c~sl Aocessories, such as oasinge, grounds, beads, eto., she llbe `not 1i'ger than 26 gage galvanized steel with perforated or expanded fl,angos shapers so as to permit complete ombedment in the plaster. t' {i5. mgt t 11angoro shall be No. 5 wire, spaced not to exceed w0 O0C. d. PIasterinrr Material"r a• Qvi'~u!'' I'1--~aa r GVpaum plaster shall be a standard brand equal to "Red Tope, nr "Clold Oo,,id", and may be fibered or unfibered. Unfibered pla.cter shall be fib<ered for scratch ooats, Use of any brand other than the two listed above must be approved by the Engineer. b,, ; a d C n jltr Portland cement shall be Type I gray color, meet STM Spec fio and shall ation 0.150, as i1,o e 7. IU 1 lr Acoustical plaster shall, be National (lypsUm Company e o d Dor I acoustical plaster, Zonolite "Acoustical Plastic", or approved equal. The noiso reduction coefficient shall be not less than .60. d, i a d F i Hair and fiber ehal be olson cattle hair or cocoanut t r a e al vary from one-half ('.1/2{x) inch to two (2+1) inches long, , 312"1 e, Witers Water shall be clean, fresh and freo from alkali, f. n s Sand shall be olean, washed Band, free from organic matter and well graded from fine to coarse as follower Retained on Sieve No. PeraentaaL uutmum Mini u 8 0 30 10 0 50 80 15 95 70 loo 95 s All minu£aotured materials shall be delivered in the original paokages, oontainere, and bundles bearing the name of the manufaoturer and the brand, Plaster, lime and cement shall be stored off the ground under watertight oover until ready for use, Damaged or deteriorated materials shall not be used, e. i f Hangers be of ample length, shall be space uao oOxoee '-0ll 0,0, and shall be bent around the channels and given three (3) twists. Hangers shall be secured to steel reinforce- ment, looped and embedded two (211) inches in conorste, or secured to inserts or other devioee of equal strength, If inserts are used, the type of insert and method of securing hanger to insert shall be subject to approval of the R,lgineer, Runner channels shall be spaced not to exceed 42 inches 4.C,, with outer lines not more than eight (8+1) inches from walls parallel thereto. Furring channels shall be placed at right angles to the runner channels and shall be spaced not more than sixteen (1611) inaheo 040, They shall be wired to the runner channels with two ('2) strands of No. 16 gage tie wire at each crossing, Furring ohannels shall extend the full length of the osiling wherever possible, All splioes of channels shall be made at supports, All openings through plaster and all junctions with otKbr types of materials shall be protected along the edges with metal grounds or oasinge, El a11' ict~ „of ~(eta1 Laths Metal lath shall be installed with the ribs running at right angles to the furring ohannols, Ties shall be spaoed not over six (6+t) inches apart on the channels with two (2) in the edges of the sheets between ohiuinele. Fe Pronorikol of T'las a ,I 1, um T'1 jai As o h CrZUt1 by weight one (1) part gypsum neat plaster to two (2) parts sand, or 100 pounds gypsum neat planter to 2 cubic feet :lightweight aggregate, 312.2 to be grown Coati By weight - one (1) hart gypsum neat plaster throe (3) parts sand, or 100 pounds of gypsum neat plaster to 3 cubic feet of lightweight aggregate. 21 P. UI"a .gems-OL a, Ul Portland' oement and aggregate shall be mixed dry until a uniform color is attained, then add the necessary water. 30 AocUetic PLae S Acoustical plaster shall be mixed in strict aooordanoe with the manufacturer's recommendations, 11 Mixtga of Plaster= gxoept where hand mixing of small batohee is approved by the Engineer, meahanical mixers shall be need for mixing the plaster. Frozen, caked or lumped materials shall not be used. Maohanica; mixers, mixing boxes and tools shall be cleaned after mixing each batch and kept free of plaster from previous mixes, Plaster shall be thoroughly mixed with the proper amount of water until uniform in color and consist. enoy. Retempering will not be permitted and all plaster which has begun to stiffen shall be discarded, H. Anblioation jLkjU plaster shall not be applied to surfaces containing frost. A minimum temperature of 400 F. shall be maintained for an adequate period prior to, during, and after plastering is acoompliahed and the plaster set. Properly regulated ventilation shall be provided, Methods of heating shall be approved by the Engineer. 1, ;2I t ~ti Scratch coat shall be applied with sufficient material an pressure to form full keys on metal, lath, and to cover wolf, and then shall be scratched to form a rough surface. 2, 3rown Coati Brown coat shall be applied after the soratoh coat has sot firm a a hard, shall be brought out to grounds, and atrai.ghtenod to a truo surface with rod and darby, and loft rough, ready to roooive the finish cont. 34 nooust c l i Acoustical plaster Moll be applied in striot aooordanoe with he manufacturer's rroommenaations, 4, Po la_na le I i Apply ;/d" to 3/4" portland cement plaster to furred an athed walls as shown on the Plans, Care is to be used in applying the plastor so that an air space will remain between the plaster and the existing wall. This plaster is to serve as a baoking for 211 thick tile, The plaster is to have a rough surface so as to pro• vide a good bond for the tile, 1, Cleaning and Patohingi All glass and other surfaoes shall, be properly protected an~"61eaned of plaster emears. Floors shall be cleaned of all plaster droppings and rubbish. After other finishes have been oompleted, the Contractor shall out, fill in, patch and properly surface all damaged or oraoked places in the plaster as directed by the Tngineer, putting the entire plastering work in perfect condition. END OF ITEM 312.3 LE CTION IV,:. IEQTIIICAI +`ir fiI4N3 I,, Iii NO 401 ..,N'+RAr, rIhrCTRTCAL RL~ UIRIM+N' a" A' .I~V4,Ck I The electrical work shall consist of providing a com. Plate and operative electrical installation of the additions to the Denton Filter Plant and Raw Water pump Station, as bhown on the plane and provided for in these specifications. The work inoludes the furnishing of all labor, materials and equipment, except that specifically stated, to be furnished by the Owner, to provide a complete and workable electrinal system. H, ~.4~@l1 Stagy All eleotrioal material, workmanship, and teats shall be in conformity with the applicable current standard rules, regu. lations, and specifications of the following authorities) National, Board of Fire Underwriters (NBFU) and National Electric Code (NEC) National Fleotrioal Manufacturers' Aseoo'Gation (M) American Institute of Eleotrioal Engineers WEE) Tneulated Power Cable Engineers Association (IPCCA) American Standards Association (ASA) National Bureau of Standards (NHS) (National Meotrical Safety Code) City of Denton, Toxae Inepeotioris and approvals for the work by authcritios having legal Jurisdiotion r,yall bo cbtained by tho Contructoro C,VAt-Ui,U_and Wcrkmanshint All materials shall be new unless otherwise specified, and first class in every respect. All materials of a type for which the Underwriter Laboratories have established a standard shall be listed by the Underwriter's Laboratories, Ino,, and shall bear their label, The Contraotor shall furnish to tho Owner, for his approval, a list showing all equipment lie oontomlilates incorporating to the works Samples of materials shall be submitted for approval when no diroeted, Equipment, materials, and articles i,etallod or used without such Approval shall be at the risk of subsequent rejection, The sohes(ule of materials shall in.. elude catalog numbers and complete description, Approval of suoh drawingso equipment, and specifications shall not relieve the Contractor of the vs• sponmibility for the satisfactory performance of the equipment as furnished and installed. All work shall be performed by competent workmen, skilled in this type of work. Work shall be neat throughout, and structurally sound, 401.1 D. 4ro_un--T;- ins All oonduits, motors, cabinets, outlets, find other aquip. ment shall properly grounded in accordance with National Electric Cod9 requirements, All ground wire within struotures shall be run in the con. orete, except where necessary to emerge and make a tap, All connections between ground conductors shall. be brazed with "Phos Copp(ir" rod or by tho thermite method known as "Cadweld", The connections shall then be coated with hot asphaltum compound. The ground rode shall to 3/4" x 101 4" oopper-weld, and connection thereto shall be with D rndy IIOAR6426 olamp. The ground wins shall be TW insulated, stranded copper, skized as shown. When ground wire is exposed to mechanical injury it shall be installed in thick wall conduit. Conneotions sh4ill be made to squipment with solder- less oonnectori3, such as Burndy Type QA or approved equal, The metal our- face under the lug shall be cleaned to bright metal, Connootions to motors shall, be to a grounding stud which shall be treaded into the stationary frame and not an and bell, and the ground wire shall not I lugged to a mounting bolt, switahesa o' i The approximate location of oabitsts, panelboarde, outlets shalle t>s outletap located 11 stoop _611 above indicated and on the wall plans. switohov shall ebee located 41 »6" above floor, N, Q4Qj&. ja 4~.FAtgjLtU I All necessary cutting and patching of existing walls, flocre, eto,, as required for the proper installation os the work under this contraot shall be done in a neat and workmanlike manner and as approved by the, Engineer. 0. paintin i All exposed cabinets, junction boxes, hangers, conduit end other devioes shall be thoroughly cleaned and painted with two (2) coats of an approved engine enamel in colors to be specified by the Engineer, Name plates are not to be painteds ail ngt All oirouits shall be rung out and on completion of i,ho work circuits. the installations shall, be entirely free of mounds and short ' I. wtggi The Contractor shall guarantee against meohaniaal defects any or all materials and workmanship oovered by these specifications and shall make good, repair or replace, at his own exponoo, any dofootive work, material or part which may show itself within a period of one year aftor final anoaptanoe of the wont. J, Serylaest The existing low voltage service to the Raw Water Pump Station is 120/1340 volts, 1 phase, 3 wire. The Contraotor shall add one wire to the service as shown on the plans, changing the serviou to 120/240 volts, 3 phase, 4 wire. The 2400 volt service for the now raw water pump shall be taken from the existing 75 HP starter. Three additional 350 MC14 lugs shall be added to the 75 HP starter bus and service extended to the new starter. 401«2 1 The servioe for the now lighting transformor and Panel G shall be 480 volts, 3 phase, 3 wire taken from a spare }polo breaker in Panel A. END O ITEM 1Vi.3 MN-NO. 402 - ELECTRICAk WIRING A. Con uitt A complete electrical conduit sysbcm shall be furnist;ed and installedp and shall ooneist of embedded and exponcd rigid, thick waUp galvanized conduits. Rigid steel galvanized conduit shall be hot-dipped galvanized inside and out and shall have a coat of enamel or lacquer applied over the gal- vanizing inside and out. Conduit shall be manufaotu;-ed according to A.S.A. Standard No. C80ol-1953 and the latest revision thereto. All nonduits shall be galvanized, rigid, heavy wall steel) Under- ! writer's approved) except the final connection to motors, which may be J flexible metal oonduif; for a distance not to exceed eightasn (1811) inches. Where used, the flexible conduit shall to American Metal Hose with a neo- prene jacket and Appleton Sealtite fittings, or other approved equal. Con- duits shall be rigidl,r supported to the building structure by means of strap, or clamps, boPaed ox, screwed to the struoturo. Hangers or ties of wire will not be permitted. Conduit sizes not shown on the drawing shall be in accordance with the National, Cleotrioal Code requirements. One-half (1/211) inch conduit is the minimum size that will be permitted. Double looknut construction shall be used on all conduits terminating in stamped metal motor terminal, motor starter) safety switch, outlet, junction or pull boxes) stoop with approved type of bushing over and of conduit. Length of conduit threads shall be inoreased at outlet, junction and pull boxes where necessary to accommodate double locknuts and busbi,ngo All bushings shall be fully seated against end of conduit. Bushings shall be composed of an outer threaded metal ring with an inner insulating compound ring moulded into the metal ring, or shall be composed entirely of an approved insulation material and of the threaded type. Conduit nipples shall have two independent sets of threads. Running threads shall not be used. Whore oondibions roquire joining two fixed conduits into n continuous run, a oonduit union tihall be uuede Where conduit joints occur in concrete slabs in damp or wet looationep or exposed to weather, they shall be made watertight by applying a coating of white lead and oil on the entire conduit thread area bo£ore assombling, All conduit joints shall be drawn up as tight as practicable. Special care shall be used to see that such joints are tight mechanically and that the white lead Application oorgpletely "Ale them against, the entrance of mois- ture. "Condulet" type fittings shall not be used on conduits oontaining giro #4 gauge or larger in size, Full roxos shall be provided and installed where necessary to facilitate the installation of cable and wires. The pull boxes shall be of N,EeC, size, 402.1 Underground steel conduits shall be painted with a heavy coat of asphaltum paint before burial. Horizontal rune of conduit shall be so installed, if possible, to provide a natural drain for condensation without pookets or traps where moisture may collect. B. W,re and Cab et Conductors for use on 2400 volt circuits shall be butyl rubber insulated ASTM Dy?4 & D1352, neopreno sheathed, ASTtd D752-60, 5 KU single conductor cable. The cable shall be Anaconda AP11005 Dura- sheath, or approved equal. Wire for the filter controls shall be 19 gas solid oonduotor, thereto- plastic insulation, color coded, 71.10den or approved equal, unless otherwise speoified, &II other conductors shall be 600 volt thermoplastic insulated, single conductor copper, 75° C, Type TIiW, wet or dry. The wire shall be Anaconda AP06031o or approved equal. All wire e+hall bear the approval of Underwriters' Laboratories, Inc. All wire and cable a AWO and larger in size shall be stranded. The minimum size conductors psrmittei are #12AM p except as specifically indi- oated. All conductors shall be continuous from outlet to outlet and no splines shall be made except at outlets. Sufficient wire shall be left at all outlets to make connections to apparatus with straining. All spl.i.oes and taps shall be made with mechanical type, compression type or spring oonneotors. Splices and taps shall then bo reinsulated with Scotch `Cape No. 33, half lapped, to a thickness of 11 times the conductor insulation thickness. A sol.dorod splice tap or oonneotion Fjhall not be acceptable. B, ND OP ITEM 402-2 IT04 N0. 403 - 1J12CTRICAL EOUIPMENP A, Outlet I303es1 Outlets for concealed wiring nhall be galvanized stamped sheet metal type, installed flush with the finished wall surface. Pull boxesf Junction boxes, and all other boyos to which no fixture or device is to be attached shall be fitted with blank covers and painted to match the surroundings, Outlets for exposed wiring shall be east iron boxes with threaded hubs, Where more than one switch occurs at the same location, use multiple gang outlet boxes covered by a single plate, B. Wa11 S l hess Wall switches on 20 ampere oircuite shall be speoifi- oation grade heavy duty switches of a rating not less than 20 amperes and shall be Arrow Hart 1591-Tor approved equal, Install switches to aooomplie'.% the control as shown or speoified, using single-pole, double-pole, or 3-way switch as required Use gang mounting where two or more switohes occur at the same location, C, gonvenienoe 9ut~etQs Convenience outlets for general use shall be Usx3erwriter's approved duplex grounding type, 15 amperes, 125 volt, equal to Arrow Hart 5261-1. D. ~t d Rea nt 1,a j latest switch and receptacle plates shall be of stainless steel throughouts E. lsotrioal Oonneotions to Special Pg~~i „ts The Contractor shall make all electrical eonneoti.ons to equipment furnished by the Owner and/or furnished under other contracts, and furnish wiring, conduit, outlet boxes, eto,, as required for same. He shall check the plans and Specifi- cations and inform himself as to the Pmount of such wiring that may be required and include same in his bid. The Craw Water Pump ,starter will be purchased undor anothov oontraot, but this Contraotoor shall take delivery, install, and make all connections theroto, F, Chlorine Vent I n~S~s T ho startor shall bo a manual motor startor, Allis-Chalmers Class 5753► or approved equal. The starter shall be for operatire, on 115 volts, have overload protection, and be enclosed in a NGHA 4 enclosure. 0• l_gooulator Sf.Ar4.ar s Each of the two floooulator starters shttll be a oombiniation circuit breaker type magnetic motor starter, Size 0, in a NEMA 4 enolosure, Allis-Chalmers Class 5759, or approved equal, The starter iehall be 2'or operation on 444 volts, 3 phase, 60 oyoles, shall have 3 phase overload protection and shall have cover mounted START-STOP push- buttons, 403-1 Clarifier Starterss Each of tha two clarifier otarters shall be a combination oirouit breaker type magnetic notor starter, size 0, in a NEMA 4 enclosure, Allis-Chalmers Class 5749, or ap vovod equal. The starter shall be for operation on 440 volts, 3 phase, 60 oy<<'les, and shall have a 48o to 120/240 volt control transformer with 30 watto extra capacity. The starter shall have 3 phase overload protection and shall have cover movrited START-STOP pushbutton. I. Clarifier l ri,RoIM3 The alarm relay for each olarifier shall be a Allis-Chalmers class 209, or approved equal, in a NE14A 4 enclosure with a oover mounted watertight reset pushbutton, Cllis-Chalmers Class 6127, or approved equal. The relay shall be D11DT with coil voltage of 110 volts, 60 cycles. J. Sr't-r-Alarm H-, r~,rn: The alarm horn for each clarifier shall be a A #31, or approved equal, watertight, for 110 volts, 60 cycles A.C. K. W W r dump Control Stations The ocntrol shall be an Allis- Chalmers Class 127, or approved equal, heavy duty START-STOP momentary pushbutton station in a NEMA 1 enclosure for flush mounting, its Iii n 'r ormers The transformer shall be a 30 KVA, 3 phase, 480 delfts to 120 2013 Wye, dry type, Class B insulation, Allis-Chalmers or approved equal, M. U hti P nels The panel shall be a 120/208 volt, 3 phase, 4 wire pane.. with ampere mains and 12 - l pole 20 ampere breakers with space for 18 additional 1 polo breakors. The panel shall be a Square D, 't'ype NQO, or approved equal, for flush mounting. N. L_iahtir,ir.U; The Contractor shall furnish fixtures throughout oomplete wi$h lamps, sockets, hangera, etc., as required. The types of fixtures required shall be as hereinafter specified and any substitution must have written approval of the Engineer. , Tv^,no Ar PenJamin OP-1034-4 Industrial Fluorescent Unit with poroo- lain onamol channel and reflector and 3 -40 watt onol wh:.te rapid start lamps. Doe Bs Art Metal #3540 exterior braoket with 150 watt lamp. ZM Cs Benjamin #5771 Floodlight Witt! 500 watt lamp. Mount high on outside walla to match existing floods. e_Dr Benjamin #R40 housing with 300 watt MO lamp. ,ag..CI Benjamin #9643 1611 diameter 11U4 porcelain dome reflector for outlet box mounting with 200 watt lamp. T. '.~.F.r Benjamin #CT4144-4 Catalina Series Commercial Fluorescent Fixture, prismatic, with 4 -40 watt rapid start lamps. 403-2 0. Motor.-OpLr-atad Valve Breakers The aircui,t broaker for the motor operated valve shall be a 20 ampero, 4 wire SIN? 11, frame, 240 volts A.C. in a NEMA i enclosure, Square D Class Al for su,+faco mounting. P, T to ocmmunioa iSn,Svstoms oom Na re shall be furnished a complete inter- system for the FiZtsr Plant as shoran on the I'Zuns. The system shall be Webster rleotrio Teletalk, or apprtr49d equal, Stations shall be as f limas Station #1 - Teletalk I'faster #2712, with All. Call Station #2 - Teletalk Remote #5a45R Station #3 - Teletalk Remote #50458 Station #4 - Atlas Srund Horn #HU12.45 Station #5 Atlas Sound (torn #HU12-45 Station #6 - Atlas Sound Dual lloNn #TP15v.45 Station #7 - Atlas Sound Dual Horn #TP15V»45 Station #8 Atlas Sound Dual Horn #TP15V-45 Station #9 - Atlas Sound Horn #HU12-45 Teletalk #TPJ.O# 10 wat-l amplifier, shelf mounted, with circuit switching relay and input transformer. 4 - Push-to-talk Switches Station #10- Atlas Sound Horn A U12-45 Station #11- Atlas Sound Born #012,4 Teletalk IFTP101 10 watt amplifier, shelf mounted, with circuit switching relay and input transformer. The Station #1 Master shall initiate and receive calla from Remote Stations 2 - 6, Remote Stations need not initiate calls. Station #9 shall initiate and receive ca118 from Remote Station #10. Any one of the four switches shall initiate a call from Station #9. Station #11 shall initiate and receive calls from Remote Station #12. Any one of the four switches shall initiate a oal].from Station {ill. 403.3 Wiring between stations shall be 1 pair shielded and jacketed tablet Rego #759, or approved equal. Communication wirirlg on the existing Main floor shall be enclosed in wiremold. Wiring in all other locations shall be in 1/211 steel conduit as described in the section of these specifica- tions regarding conduit. END OF ITEM , 403.4 ,