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City staff to recommend $289,000 award for Sheridan creek water crossing; HDPE chosen over fusible PVC
Summary
City staff will recommend that the council award a contract for a new water pipeline beneath a creek to LJS Concrete Excavating for about $289,000; staff said the bid is roughly $191,000 below the engineer's estimate and the utility will use HDPE pipe instead of the previously planned fusible PVC.
City staff said they will recommend at the next regular council meeting that the council award a contract for a new water line under a creek to LJS Concrete Excavating, the lowest qualified bidder, for roughly $289,000.
The recommendation follows bids that came in far lower than the engineer's estimate. "Engineer's estimate was $480,700. So we're roughly ... $191,000 lower than the engineer's estimate, which is great," said Thomas, a staff member presenting the project. He told council members that the lower cost typically reflects contractors' means and methods and timing, and that the city has been building funds in its water enterprise account to finance the work.
The project will be paid from the city's water enterprise funds, the presenter said, and staff intends to ask the council next week to authorize the award and to allow the public works director to act on behalf of the mayor and council for project execution.
Staff also told the council the planned pipe material changed during design. "That came from our utilities department on, HDPE -- high-density polyethylene -- it's thicker ... a better, more sturdier material," Thomas said, explaining the utilities department preferred HDPE over the originally planned fusible PVC. The presenter said utilities staff felt more comfortable placing HDPE under the grate in that location.
Council members asked about the project footprint and public access. Councilman Patzig asked whether the work would affect pedestrian access on the nearby bridge and whether the pipeline route crosses near known local landmarks. Thomas said most work will use directional drilling beneath the creek and that the pathway should remain open with some temporary detours at points during construction. He identified the crossing location as just south of the Scoops ice cream stand near the Belleview Crossing and said the project will replace an older ductile iron line with the new installation to improve flow and long-term reliability.
Next steps: staff will place a recommendation on next week's council agenda to award the contract to LJS Concrete Excavating and request authority for the public works director to proceed. No vote on the award was recorded during the study session.
