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Title
Change Order No. 1 with McMahon Contracting, LP for Cottonwood Creek Drainage Improvements at Marshall Drive and Robinson Road, in the total net amount of $48,211.62
Presenter
Gabe Johnson, Director of Public Works, and Romin Khavari, City Engineer
Recommended Action
Approve
Analysis
On Tuesday, February 18, 2020, the City of Grand Prairie awarded a contract for Cottonwood Creek Drainage Improvements at Marshall Drive and Robinson Road (W.O. #615.60 for $3,341,969.01.
This proposed change order No. 1 will increase the Section I contract amount for removal of two abandoned TRA manholes, installation of 145 linear feet of 4-foot high chain link fence along the retaining wall and addition of two more connections to the existing 42-inch storm drain pipe in Robinson Road and deletion of 51 linear feet of 42-inch RCP storm drain replacement to address TRA comments. This proposed change order No. 1 will also increase the Section IV and Section V contract amounts to upgrade the approach slab reinforcing steel for the Marshall Drive and Robinson Road bridges to provide an epoxy coating to extend the life of the bridge approach slabs. The total change order amount is a contract increase of $48,211.62 for a revised contract amount of $3,390,180.63.
State statutes require City Council approval of a change order when the cumulative cost of change orders exceeds $50,000. With approval of this change order, the City Manager will be able to approve the change order to a cumulative value of $50,000 without additional Council approval. Also, the City, as an owner, reserves the right to increase the amount of the work to be performed in a given construction contract by an amount not to exceed twenty-five (25%) percent of the original bid. The amount of the original contract was $3,341,969.01 and 25% value of this contract is $835,492.25. Cumulative amount of Change Orders is $63,260.02 which requires council approval.
The total net amount of $48,211.6...
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