SR 169 - Ravensdale Creek - Fish Passage

Project news

  • Construction began in summer 2021.
  • In September 2021, eastbound traffic will shift onto a temporary bypass just west of the main roadway.
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Needs & benefits

Ravensdale Creek goes under SR 169 through an 82-foot long, 6-foot by 5-foot culvert. During spawning season, water travels through the culvert too fast for salmon and other fish to continue upstream. In 2021 and 2022, we will replace this culvert with a bridge that will open the creek and surrounding wetlands. We will also remove a culvert about 200 feet downstream, leaving an open channel, and correct the hiking trail fish barrier about 350 feet downstream. This work will open an additional 2.4 miles of spawning and rearing habitat for Chinook, coho, steelhead and other species.

What travelers should expect
To keep people moving along the SR 169 corridor during construction, we will build a single-lane bypass on a section of old highway right-of-way just west of the current SR 169 roadway. We also will keep one lane of the existing two-lane highway open; this will allow us to maintain traffic in both directions with the least disruption.

This work likely will require one weekend-long closure of SR 169 to remove the old culvert under the highway and build the bypass over Ravensdale Creek.

What trail users can expect
During this project, trail users will hear construction noises and encounter temporary and permanent trail closures for public safety.

  • Temporary trail closures will total about a quarter-mile, or 1.5 percent of the trail system.
  • Permanent closures total about 1/10th of a mile, or 0.5 percent of system.
  • Temporary trail closures will end in winter 2022.


  • Spring 2021: Project advertised for competitive bid
  • June 2021: Scarcella Bros. Inc. selected as contractor.
  • Summer 2021: Construction begins
  • Fall 2022: Construction complete


Financial Data for PIN 116911V
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $3,666
CWA $7,768
Total $11,434


Tom Pearce
WSDOT Communications

A small map showing the location of the SR 169 Ravensdale Creek project
We will replace culverts at SR 169 and Ravensdale Creek.