Waterfront trail renovation and boardwalk construction
Washington Park Arboretum Waterfront Trail Renovation, Solicitation 222416, issued by City of Seattle.
At a glance
Seattle Public Works is soliciting bids to renovate and expand the Waterfront Trail in Washington Park Arboretum on Foster Island. Work includes replacing trail segments, constructing a gangway and bridge, building concrete platforms, and installing a boardwalk, with a base estimate of $960,000 plus optional additive work totaling $1.78 million.
Key facts
- Issuing agency
- City of Seattle
- Solicitation number
- 222416
- Type
- purchase
- Posted
- Dec 17, 2025
- Response deadline
- Feb 25, 2026, 5:00 PM EST
- Pre-bid meeting
- Jan 8, 2026, 1:00 PM EST
- Place of performance
- King County, WA
Official description
Solicitation #PW#2022-048. Issued by Public Works. Project Description: The project renovates a portion of the Waterfront Trail within the Washington Park Arboretum. The scope includes replacing and/or renovating the existing floating and on grade trail segments on Foster Island including site furnishing and plantings. Additive #1 is additional trail construction including construction of a 29 linear foot gangway, a 97 linear foot bridge, and two pile supported concrete platforms. Additive #2 is the construction of an on- grade HDPE pipe supported boardwalk. Engineer's Estimate: Base Bid: $960,000.00, Additive#1: $510,000.00, Additive#2: $1,271,445.00 Project Location: 2300 Arboretum Dr E, Seattle, WA 98112
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