SR 509 Miller Creek Fish Passage Restoration
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 and new stream alignment under SR 509/Des Moines Memorial Drive in King County.
Public Works
General
Open
XE3718
Jul 16, 2026 11:59 PM
Mar 19, 2026 09:57 AM
Request for Proposal (RFP)
State
Original Solicitation Links
[
XE3718
]SR509 Miller Creek Fish Passage
Description
This project involves the removal of two fish barrier culverts and seven weirs. These existing barriers will be replaced with a fish-passable structure and a new stream alignment under SR 509/Des Moines Memorial Drive. The scope of work includes fish exclusion and temporary stream bypass measures.
Classification Codes
NAICS237310Highway, Street, and Bridge Construction
PSCZ2LBREPAIR OR ALTERATION OF HIGHWAYS/ROADS/STREETS/BRIDGES/RAILWAYS
Smart Codes
fish passage restorationculvert removalstream alignment
Timeline
Mar 19, 2026 12:00 PM-Posted Date
Jul 16, 2026 12:00 PM-Due Date