45th Ave SW Culvert Replacement and Habitat Restoration

The City of Seattle Department of Finance and Administrative Services, on behalf of Seattle Public Utilities, is requesting bids for the replacement of the 45th Ave SW culvert and habitat restoration in southwest Seattle, with bids due July 29, 2026 at 2:00 p.m. This is a Covered Project subject to Seattle's Community Workforce Agreement and Priority Hire requirements under SMC 20.37, mandating compliance with prevailing wage standards and social equity provisions. Bidders must achieve 20% WMBE utilization as the inclusion standard for this "Underground" classified project.

The scope encompasses civil demolition with in-stream bypass, tree protection, civil site work, stream work, grading, utilities (drainage and water), roadway paving, landscaping, structural work (soldier pile shoring, cast-in-place concrete footings, shotcrete walls, and precast concrete cover), and electrical work. Fauntleroy Creek crosses 45th Avenue SW between SW Director Street and SW Wildwood Place. The Engineer's estimate is $30,250,000. The contract term runs 535 working days from the Notice to Proceed, with liquidated damages of $3,475 per working day for failure to achieve Substantial Completion and $1,725 per working day for failure to achieve Physical Completion.

Mandatory pre-bid site inspections were held July 7 or July 9, 2026 at 9144 45th Ave SW. Bids were submitted electronically through OpenGov and opened via Microsoft Teams with no in-person attendance permitted. All bids must include an Inclusion Plan and, for projects over $1,000,000, a Bidder/Subcontractor List identifying electrical, structural steel installation, and rebar installation subcontractors. A Bid Guaranty of not less than 5% of the maximum bid amount (including retail sales tax) is required. Supplemental Bidder Responsibility Criteria require demonstration of relevant experience with culvert replacement in fish-bearing streams with bypass systems and soldier pile shoring, with project managers and superintendents having completed similar work within the last seven years. The contract is funded by the Drainage and Wastewater Fund under Ordinance No. 127156, PW# 2025-017.