Title
Approving a change order in the amount of $485,194 for Capital Excavation Company associated with the Kelly Lane Phase 2 roadway improvements project, and authorizing the City Manager to execute the same.
Summary
This agenda item requests approval of Change Order No. 1 with Capital Excavation Company (CapEx) in the amount of $485,194 for the Kelly Lane Phase 2 (Project).
Early in the design of this Project, before the bid process and selection of the contractor, city staff discussed with the design consultants the advantages and disadvantages of elevating Vilamoura and Kelly Lane near the intersection of those two roads with either span bridges or box culverts over a tributary of Wilbarger Creek. Ultimately, city staff decided to pursue box culverts at the advice of engineering consultants that determined those would be less expensive. Contractors thus bid on the Project with a design that used box culverts.
Interestingly, when city staff interviewed the contractors that had submitted bid proposals, one of the contractors, CapEx, indicated they could lower their bid more if the city installed span bridges instead of box culverts. CapEx offered to lower their original bid from $17,382,177, which included the box culverts, to $14,893,736, which replaced box culverts with span bridges. Considering the differences in on-going maintenance and operations, the impacts of recent rain events, the United States Army Corp of Engineers preference for bridges instead of box culverts (since more favorable to retaining natural resources such as aquatic features and wildlife passage), and the lower cost, the decision was made to recommend span bridges.
The span bridges needed to be designed so CapEx's revised, lowered bid was a probable construction cost based on conversations between the contractor and the design consultant. To offer City Council the option of pursuing span bridges instead of box culverts, staff presented two items at the June 27, 2023 Cit...
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