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Title
Change Order/Amendment No. 6 in the net amount of $425,989.33 with Austin Bridge and Road, L.P. for MacArthur Paving and Drainage Improvements
Presenter
Romin Khavari, City Engineer
Recommended Action
Approve
Analysis
On April 21, 2015 the City of Grand Prairie (15-4571) awarded a construction contract to Austin Bridge and Road, L.P in the bid amount of $14,707,420.34 and a total project cost of $16,205,025 for MacArthur Blvd Paving and Drainage improvements between IH 30 and West fork of the Trinity River inside Irving City limits.
This project provided for the construction of 4,743 linear feet of 4-lane divided thoroughfare in MacArthur Blvd from IH-30 to north of the West fork of Trinity River to connect to the existing concrete roadway. The project also included the construction of Two-700 linear feet bridges over the Trinity River; 555 linear feet of 37’- wide new concrete roadway to the Land fill Road; construction of approximately 1400 linear feet of bypass channel across the existing Trinity River ox-bow to the west of MacArthur Blvd. to improve channel hydraulics and mitigate for the approximate 4 feet embankment fill required for the roadway.
This proposed Change order/ Amendment No.6 provides for quantity overruns of the concrete retaining walls and bridge bents; Although no changes were made in the construction drawings, plan quantities were not represented correctly by the engineer’s bid proposal, the City would have been responsible to pay for this project cost. This change order also provides for land fill road driveway, lay down curb installation and asphalt transition adjustments.
Change order/ Amendment No.1 approved by Council April 5, 2016 (16-5523) in the net negative amount of -$27,431.93 provided for revisions of bridge lighting conduit plans and the addition of an electrical service for bridge lighting on the north side of the Trinity river inside Irving City limits; Irving will take over Bridge maintenance fo...
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