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Ordinance amending the FY 2019/2020 Capital Improvement Projects Budget; Construction contract with McMahon Contracting, LP for Cottonwood Creek Drainage Improvements at Marshall Drive and Robinson Road to include Paving Improvements for Alternate No. 1 bid in the total amount of $3,341,969.01; material testing with Alliance Geotechnical Group in the amount of $91,812.60; in-house engineering in the amount of $167,098.45; and 5% construction contract contingency in the amount of $167,098.45 for a total project cost of $3,767,978.51
Presenter
Gabe Johnson, Director of Public Works; Walter Shumac, Director of Transportation and Romin Khavari, City Engineer
Recommended Action
Approve
Analysis
On Tuesday, February 18, 2020, the City of Grand Prairie opened bids for Cottonwood Creek Drainage Improvements at Marshall Drive and Robinson Road (W.O. #615.60) to include Paving Improvements (W.O.#618.77). The low bidder is McMahon Contracting, LP in the Alternate Bid No. 1 for total bid amount of $3,341,969.01.
The Cottonwood Creek Drainage Improvements at Marshall Drive and Robinson Road (W.O. #615.60) project provides for 100-year flood capacity bridge improvements at the Marshall Drive crossing of South Fork Cottonwood Creek and provides for 50-year flood capacity bridge improvements at the Robinson Road crossing of South Fork Cottonwood Creek. Providing a 100-year capacity bridge at Robinson Road would be too disruptive to the existing adjoining properties. Providing a 100-year capacity crossing at Marshall Drive will allow a detour route for Carrier Parkway northbound traffic when Carrier is closed during flood events. The Paving Improvements (W.O.#618.77) will include re-building the Marshall and Robinson Intersection to extend and include the proposed bridges to then match existing grades.
This project provides for removal of the existing inadequate box culverts at South Fork Cottonwood creek at Marshall and Robinson Road and the constru...
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