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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 , - '" A_ & { it w ' Or l mv moo , r • da w � _ S ri ° v A s M . 1 ' : ��r4 •N i�r��� _ u � °fir �w`i z wvJ i1 4a �� .a i PW y " '°.o - .,rot.- p "'� v '� > tl "' 1 a �'Ct; ► ., x . 1 ' ' y , ! , a o 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 Page 1 of 2 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 Page 2 of 2