SR 509 Miller Creek Fish Passage

The Washington State Department of Transportation is seeking a contractor to remove fish barrier culverts and weirs and replace them with a fish-passable structure under SR 509 in King County.

Washington > Washington State Department of Transportation


General
Open
XE3718
Nov 10, 2026 12:00 PM
Mar 19, 2026 12:00 PM
Request for Proposal (RFP)
State
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Original Solicitation Links
Description

This project involves the removal of two fish barrier culverts and seven weirs, and their replacement with a fish-passable structure and a new stream alignment under SR 509/Des Moines Memorial Drive. Work includes fish exclusion, temporary stream bypass, and related construction activities.

Classification Codes
NAICS237310Highway, Street, and Bridge Construction
PSCY1LBCONSTRUCTION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
Smart Codes
fish passage culvertstream restorationroad construction
Specifications
Service Only
Timeline
Mar 19, 2026-Posted Date
Nov 10, 2026-Due Date
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