6304 - Denton Energy Center Waterline Phase 1, Addendum 2 (2) Addendum No. 2 – Page 1 of 2
ADDENDUM NUMBER 2 TO
PLANS, SPECIFICATIONS AND CONTRACT DOCUMENTS FOR
CITY OF DENTON, TEXAS
REQUEST FOR PROPOSAL
RFP 6304
CONSTRUCTION OF DENTON ENERGY CENTER (DEC) WATER LINE
IMPROVEMENTS PHASE 1
Issued January 5, 2017
TO: PROSPECTIVE PROPOSERS AND PLAN HOLDERS
The Plans and Specifications for RFP 6304 CONSTRUCTION OF DENTON ENERGY CENTER
(DEC) WATER LINE IMPROVEMENTS PHASE 1 shall be modified as follows:
ITEM 1 EXHIBIT 1 - RFP 6304 PRICING SHEET FOR WATER LINE IMPROVEMENTS – PHASE 1
DME DENTON ENERGY CENTER
1) Replace with the attached revised Exhibit 1. A rock excavation item has been included.
ITEM 2 EXHIBIT 3 – TECHNICAL SPECIFICATION, V. SPECIAL CONTRACT
REQUIREMENTS AND PRICE ITEM DEFINITIONS, B. PRICE ITEMS,
1) Add the following:
Item 203.X Rock Excavation
General: This item shall provide for all the labor and equipment necessary to excavate all solid
rock to the lines, neat lines and grades shown on the plans and standard details for trench
excavation. Rock excavation shall not include gravel, cemented gravel, cobble, hardpan, and
soft laminated shale. Solid rock shall be defined as rock formations, other than those excluded
above, that require hard ripping, jackhammering, or other extra work beyond the capability of
heavy duty trench excavating equipment such as a Caterpillar 235 or 345B Excavator. Blasting
and the use of any explosives shall not be allowed. Material unsuitable for backfill and any
excess material shall become the property of the contractor and disposed of appropriately, no
separate pay will be given. Excavated rock shall be considered unsuitable for transporting to the
spoils site or spreading out on the adjacent field along the alignment of the project.
Addendum No. 2 – Page 2 of 2
Payment: Payment shall be at the unit price per cubic yard of material excavated based upon the
neat line depth of excavated rock, trench width of excavated rock, and along the center line of
pipe line. The trench width used for measurement shall be the actual trench width of the
excavated rock or the width of the pipe outside diameter plus 24”, whichever is less. This item
shall include all labor, equipment, materials, tools and incidentals required to perform the work.
2) Add the following to the payment paragraph for Item 501.7 12” R.J.D.I Water Carrier
Pipe, Item 501.14 12” C900 DR 14 PVC Water, Item 501.7 16” C151 DIP CL 52, and
Item 503.3 24” Steel Casing By Open Trench:
The unit price shall not include rock excavation, all other required trench excavation shall be
included. Rock excavation is covered in Item 203.X Rock Excavation.
All other items and provisions of the contract documents not modified herein shall remain the same.
THIS ADDENDUM IS MADE PART OF THE PLANS, SPECIFICATIONS AND CONTRACT
DOCUMENTS AND SHALL BE ACKNOWLEDGED ON THE PROPOSAL.
By: Robin Harris, P.E. (TX No. 110694)
TEAGUE NALL & PERKINS, INC.
Attachments:
END ADDENDUM NUMBER 2