HomeMy WebLinkAbout1987-0880923L
AN ORDINANCE AUTHORIZING THE EXECUTION
CONTRACT BETWEEN THE CITY OF DENTON AND
AND PROVIDING AN EFFECTIVE DATE
OF A CHANGE ORDER TO A
CALVERT PAVING COMPANY,
WHEREAS, on February 18, 1986, the City awarded a contract
for the construction of certain improvements to the Yellowstone
and Sheraton Drainage Project, and
WHEREAS, the City Manager having recommended to the Council
that a change order be authorized to amend such contract and
said change order being in compliance with the requirements of
art 2368a, V A C S , NOW, THEREFORE,
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF DENTON
SECTION I That the change order to the contract between
the Thousand Two Hundred Calvert Paving
S ven y eightthe
Dollarsamount
($19,27g)Nineteen
is
hereby approved and the expenditure of funds therefor is hereby
autnorized
SECTION 11 Tnat this ordinance shall become effective
immediately upon its passage and approval
PASSED AND APPROVED this the 12th day of May, 1987
RAY STIEPKENS,fMAYUK
CITY C4 DENTON, TEXAS
ATTEST
JENNI *DENN,
RS, CI SR ARY
CITY TEXAS
APPROVED AS TO LEGAL FORM
DEBRA ADAMI DRAYOVITCH, CITY ATTORNEY
CITY OF DENTON, TEXAS
BY
DATE May 12, 1987
CITY COUNCIL REPORT
TO Mayor and Members of the City Council
FROM Lloyd V Harrell, City Manager
SUBJECT BID$ 9575 - YELLOWSTONE SHERATON DRAINAGE
P O # 72432 CHANGE ORDER #2
RECO191ENDATION We recommend this change order be approved for $19,278 00 to
Calvert Paving, the Contractor for the project
SUMMARY The original cost of this project with Change Order If1-$14,495 00,
was $681,381 42 When we add this Change Order for $19,278 00 the total project cost
will be $700,659 42 This Change Order is to cover the items explained on the at-
tached memo from David Salmon
BACKGROUND Memorandum - David Salmon, Engineering Dept,
PROGRAMS, DEPARTMENTS OR GROUPS AFFECTED
Street and Drainage Improvements
FISCAL IMPACT
Account # 432-002-0010-SI18-9100
There is no additional impact on the General Fund
Respectfully submitted
Lloyd V Harrell
City Manager
Prepared by
Ye John J Marshall,CPMle Purchasing Agent
Approved
Pe4ci
Name John J Marshall, C
Ti tl a Purchasing Agent
C/TY 01 DNNTON / 215 E McKinney / Denton, Taxes 76201
MEMORANDUM
DATE May 6, 1987
TO Rick Svehla, Deputy City Manager
FROM David Salmon, E I T /Civil Engineer
SUBJECT Sun Valley Flume
The flume was originally constructed to allow trash vehicle
access in the rear of the subdivision Loads from the trash
vehicles destroyed this flume so we added it to the contract to
allow all the major drainage systems in the basic vicinity to
be upgraded Work started on the project several times but
weather created problems When a few good days occurred in
early April, the contractor hurried to get some work done In
our haste, the contractor and City crews made combined
surveying errors that compounded some basic design errors in a
582 foot section of the flume Our inspector did not catch the
grade difference so the flume was poured much too high It was
determined after significant evaluation, that the flume had to
be removed and replaced We also decided to lower the 200 foot
section that had been designed too high to guarantee that the
flume would work to catch all water from adjoining properties
As part of the redesign, Kings Row had to be lowered with
transitions back east and west to allow reasonable slopes to
the low point Costs for the modifications follow
Item
Quantity
Unit
Price
Total
Remove Concrete Flume
711 sy
$ 8
$18
SO/sy
00/sy
$ 6,046 00
$12,804 00
Install Concrete Flume
711 sy
Lump Sum
4,000
00
$ 4,000 00
Pumping $ Liming
GRAND
TOTAL
$22,850 00
Because both the City and the contractor were in error, it was
decided to share the cost of removing and replacing the flume
Calvert Paving agreed to deduct $9,500 00 from the price of
removing and replacing the flume and to split the cost of
pumping and liming which is $4,000 00
ge 2 of 2 pages
The cost of the original Kings Row design and the cost of the
new design is as follows
Item
Quantity
Unit
Price
Total
Remove Concrete Pavement
70
sy
$ 8
50
$ 595
00
Remove Conc Curb $ Gutter
40
if
2
50
100
00
Unclassified Excavation
60
cy
5
00
300
00
Trevira
130
sy
90
117
00
3 1/2" Asphalt
130
sy
7
50
975
00
1 1/2" Asphalt
130
sy
3
50
465
00
8" Asphalt Valley Gutter
40
sy
14
00
S60
00
Saw Cut Existing Concrete
8
if
1
00
8
400
00
00
Concrete Curb & Gutter
40
if
10
00
TOTAL
$3,510
00
Remove Concrete Pavement
Remove Conc Curb $ Gutter
Remove Conc Driveway $
Sidewalk
Unclassified Excavation
Trevira
3 1/2" Asphalt
1 1/2" Asphalt
8" Asphalt Valley Gutter
Concrete Curb $ Gutter
Concrete Lriveway
Saw Cut Existing Concrete
NEWEW U�ESI�GN
70
sy
$ 8
50
$ 595
00
240
if
2
50
600
00
40
sy
8
50
340
00
170
sy
5
00
850
00
500
sy
90
450
00
460
sy
7
50
3,450
00
460
sy
3
50
1,610
00
40
sy
14
00
560
00
40
sy
10
00
1,900
00
40
sy
25
00
1,000
00
8
if
1
00
8
00
1UTAL $11,363
The difference in price of the two designs is $7,853 00 This
extra street work is necessary as part of a design change It
would not be fair to impose any of this on the contractor
The total cost to the City for the modifications on the Sun
Valley Drainage Flume is $11,425 + $7,853 - $19,278 Excellent
bids on the project from Calvert Paving provide enough funds
from the original budgeted amount to cover these corrections
and reworking of the Kings Row street section
avi a mon
0464E