45th Ave SW Culvert Replacement and Habitat Restoration

The City of Seattle Department of Finance and Administrative Services is requesting bids for the 45th Ave SW Culvert Replacement and Habitat Restoration project under Public Works Contract PW#2025-017, with bids due July 29, 2026 at 2:00 PM and mandatory pre-bid site inspections on July 7 and July 9, 2026 at the project site. This project is subject to the City of Seattle's Community Workforce Agreement and Priority Hire provisions under Seattle Municipal Code 20.37 and is funded through the Drinking Water Fund.

The scope encompasses civil demolition including in-stream bypass, tree protection, civil site work, stream restoration work, grading, utilities installation (drainage and water), roadway paving, landscaping, structural work (soldier pile shoring, cast-in-place concrete footings, shotcrete walls, and precast concrete cover systems), and electrical work. The project is located in southwest Seattle where Fauntleroy Creek crosses 45th Ave SW, between SW Director Street on the north and SW Wildwood Place on the south, across 1.25 acres of disturbed area. Construction is scheduled from May 1, 2026 through December 1, 2028, with a contract completion timeline of 535 working days from Notice to Proceed. Liquidated damages are assessed at $3,475 per working day for failure to achieve Substantial Completion and $1,725 per working day for failure to achieve Physical Completion.

The Engineer's Estimate is $30.25 million. All bidders must submit a Women and Minority Business Inclusion Plan with a minimum threshold of 10 points required for bid responsiveness, with a past-performance benchmark of 20 percent WMBE utilization. Bidders must comply with prevailing wage requirements under RCW 39.12, possess a Washington State contractor registration certificate, UBI number, and industrial insurance coverage. A bid guaranty of not less than 5 percent of the bid amount is required. Bidders must submit a completed Bidder/Subcontractor List identifying subcontractors for electrical, structural steel installation, and rebar installation work. Written questions are due by 5:00 PM on Thursday, July 24, 2026. Bids are submitted through OpenGov with public opening via Microsoft Teams.