SUBJECT: Accept Work for Amy Ridge and Hiram Clarke Lift Station Diversion; WBS No. R-000267-0115-4.
RECOMMENDATION: (SUMMARY) Pass a motion to approve the final Contract Amount of $4,976,475.93 or 1.79% over the original Contract Amount and under 5% contingency amount, accept the work and authorize final payment.
PROJECT NOTICE/JUSTIFICATION: This project was part of the City’s ongoing program to consolidate lift stations through gravity sewer flow diversion.
DESCRIPTION/SCOPE: This project consisted of demolition of two lift stations and associated site work. Construction of approximately 8,670 linear feet of 8, 10, 12 and 24-inch gravity sewer flow diversion to Post Oak #1 Lift Station. ARCADIS U.S., Inc. designed the project with 305 calendar days allowed for construction. The project was awarded to BRH-Garver Construction, L.P. with an original Contract Amount of $4,889,089.00.
LOCATION: The project area is generally bound by Sam Houston Tollway on the north, FM2234/McHard Road on the south, Hiram Clarke Road on the east, and South Post Oak Road on the west. The project is located in Key Map Grids 611C and D.
CONTRACT COMPLETION AND COST: The Contractor, BRH-Garver Construction, L.P. has completed the work under the subject Contract. The project was completed beyond the established completion date with an additional 133 days approved by Change Order Nos. 1-3. Liquidated damages in the amount of $40,800.00 for 34 days at $1,200/day were assessed and reflected in the final payment to the Contractor. The final cost of the project, including overrun and underrun of estimated unit price quantities and previously approved Change Order Nos. 2 and 3 is $4,976,475.93, an increase of $87,386.93 or 1.79% over the original Contract Amount and under 5% contingency amount. The increased cost is a result of the difference between planned and measured quantities.
M/WSBE PARTICIPATION: The advertised M/WBE contract goal for this project was 18.00%. The M/WSBE plan established for this project was 18.00%. According to the Office of Business Opportunity, the participation was 17.21%. Contractor’s M/WSBE performance evaluation was rated Satisfactory.
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Carol Ellinger Haddock, P.E.
Acting Director
Department of Public Works and Engineering
WBS No. R-000267-0115-4