10th Ave NE Stormwater Improvements

The City of Shoreline, Washington is requesting sealed bids for stormwater improvements on 10th and 8th Avenue NE between NE 165th and 174th Streets, with bids due September 2, 2026 at 2:00 p.m. Pacific Time and a virtual public bid opening the same day via Microsoft Teams. The project is subject to Washington State prevailing wage requirements and a mandatory apprenticeship utilization floor of no less than 15 percent of total labor hours performed by apprentices enrolled in an approved apprenticeship program.

The scope encompasses stormwater ditch improvements, storm drain pipe replacement, installation of water quality features including bioretention areas (788 square feet) and modular wetlands, catch basin installation, ditch excavation (1,569 cubic yards), erosion control, landscaping, and restoration work across 39 line items. Physical completion is required within 60 working days from Notice to Proceed, with a preconstruction conference to be held prior to commencement.

The estimated construction cost is $681,832. The bid deposit requirement is a minimum of 5 percent of the total bid proposal, submitted as a certified check, cashier's check, or surety bond payable to the City. The successful bidder must provide a contract bond for the full contract amount and submit certificates of insurance, a completed W-9 form, and a City of Shoreline business license. A 5 percent retainage from progress estimates applies until final project acceptance. The project is partially funded by the Washington State Department of Ecology. Contract award is anticipated within 45 calendar days of bid opening.

Questions must be submitted by 5:00 p.m. Pacific Time on August 24, 2026. Bids are submitted through PublicPurchase.com. Sales Tax Rule 171 applies; contractors must include all contractor-paid taxes in unit bid prices with no separate tax reimbursement. Liquidated damages apply for work not completed within the 60 working day period.