Item 4BCITY OF
SOUTHLAKE
MEMORANDUM
(November 1, 2011)
To: Shana Yelverton, City Manager
From: Robert H. Price, P.E., Director of Public Works
Subject: Approve Change Order No. 1 with Wilson Contractor Services
for the 20 -inch water line along SH 114 from North White
Chapel Boulevard to Town Square in the amount of
$143,219.59
Action
Requested: Approve Change Order No. 1 with Wilson Contractor Services for
the 20 -inch water line along SH 114 from North White Chapel
Boulevard to Town Square in the amount of $143,219.59
Background
Information: The 20 -inch water line along S.H. 114 from North White Chapel to
Town Square is currently under construction. This project connects
the T.W. King pump station to the elevated tower on Miron Drive
effectively "closing the loop" of the City's water supply system. The
completion of this project will significantly improve the efficiency of
the water system.
Change Order No. 1 is for deduction of concrete pipe and the
addition of ductile iron pipe to reduce the disruption to existing
private facilities, as well as providing utility conflict resolution for
underground storm drain and underground private electrical lines,
and the addition of water valves and appurtenances.
The additional 20 -inch x 12 -inch cross and valve was not included
in the design of this project as it was believed that the cross and
valve would have been in existence at the time of construction of
this project as the result of an adjacent private commercial
development. However, the private development has been
delayed. The city had intended to pay for the installation of the
valve and cross as part of the Developer's Agreement for the
adjacent development.
Change Order No.1
Pipe addition /deduction $86,241.20
Utility conflict resolution 17,098.97
Additional water valves and appurtenances 39,879.42
Total $143,219.59
Change Order No. 1 requires City Council action, as the total is
above the City Manager's signatory authority.
20 -inch Water Line Project Contract
Original Contract $1,731,720.30
Change Order No. 1 143,219.59
Total $1,874,939.89
Financial
Considerations: Funding for Change Order No. 1 is available in the FY 2011 and FY
2012 capital improvement program budget.
Strategic Link: The construction of the 20 -inch water line and associated activities
link to the city's strategy map relative to the focus areas of
Infrastructure and Performance Management and Service Delivery.
The specific corporate objectives that are met by this design project
include: Providing high quality customer service, improve
performance of delivery and operational processes, and investing
to provide and maintain high quality public assets.
Citizen Input/
Board Review: N/A
Legal Review: None
Alternatives: The City Council may approve or deny this change order.
Supporting
Documents: Location Map
Change Order No. 1
Staff
Recommendation: Approve Change Order No. 1 Wilson Contractor Services for the
20 -inch water line along SH 114 from North White Chapel
Boulevard to Town Square in the amount of $143,219.59
Staff
Contact: Robert H. Price, P.E., Public Works Director
Gordon J. Mayer, Jr., P.E., City Engineer
Steven D. Anderson, P.E., CFM, Civil Engineer
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CHANGE ORDER No. l
Dated: November], 2011
Project: 20 -inch Water Line Along S.H. 114 from North White Chapel to Town Square
OWNER City ofSouthlake
Contract for $1.731.720.30 Contract Date: July 15. 2011
To: Wilson Contractor Services, LLC
Contractor
You are directed to make the changes noted below in the subject contract for the dollar amount stated below
including all labor, equipment, materials, overhead, and profit:
Nature of the changes:
1. Item #5A
Deduct 74 LF — 20" B -303 Cone. Pressure Pipe by Open Cut ($93.70/LF)
($6,933.80)
2. Item #6A
Deduct 274 LF — 20" B -303 Cone. Pressure Pipe by Bore ($264.50/LF)
($72,473.00)
3. Item #7
Add 348 LF— 20" Ductile Iron Pipe by Bore ($476.00/LF)
$165,648.00
4. Item #27
Add 1 LS — Furnish & Install 20" RCCP MJ Adapter ($4,110.00/EA)
$4,110.00
5. Item #28
Add 1 EA — Electrical Repair — Prism Electric ($12,110.84/EA)
$12,110.84
6. Item #29
Add 1 EA — Storm Drain Conflict Resolution Sta. 82 +50 ($4,988.13EA)
$4,988.13
7. Item #30
Add 1 EA — 20" Butterfly Valve w/ Adapter Sta. 83 +74 ($7,921.20/EA)
$7,921.20
8. Item #31
Add 1 EA — 20 "x12" Cross and Valves Sta. 81 +58 ($22,950.22/EA)
$22,950.22
9. Item #32
Add 1 EA — 20" Butterfly Valve Sta. 94 +17 ($4,898.00/EA)
$4,898.00
Total:
These changes result in the following adjustment of contract price and contract time:
Contract Price Prior to this Change Order $ 1,731,720.30
Net Increase Resulting from this Change Order $ 143,219.59
Current Contract Price Including this Change Order $ 1,874,939.89
S 143,219.59
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The above changes are approved:
City of Southlake
City
li
Title: Manor
Date: 1 2011
Contract Time Prior to this Change 240 calendar days
(Days or Date)
Net Increase Resulting from this Change Order 20 calendar days
(Days)
Current Contract Time Including this Change Order 260 calendar days
(Days or Date)
The above changes are recommended:
Cib� of Southlake
City
li
Title: City EnLineer
Date: 2011
City of Southlake
City
By:
Title: ProiectManager
Date: .2011
City of Southlake
City
By:
Title: Director Public Works
Date: 2011
Wilson Contractor Services, LLC
Contractor
By:
Date: 1 2011
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