US 101 - Unnamed Tributary to Hoh River - Remove Fish Barrier

Project News

  • Sign up for email alerts for Clallam and Jefferson County construction activities.
  • This project removes and replaces an outdated, 5-foot-wide, 55-foot-long culvert that has a substantial water drop, which keeps fish from continuing upstream. Crews will replace it with a 16-foot-wide, 60-foot-long, concrete box-culvert in the creek for salmon and resident fish.
  • Travelers will follow a single lane bypass controlled by a temporary signal until all work is complete.
  • Travelers should be aware of another nearby WSDOT fish barrier correction project in its second year of construction further south along US 101 near Queets.

Needs & Benefits

The existing culvert runs from an unnamed tributary to Hoh River in Jefferson County and has been identified by WSDOT and the Washington State Department of Fish and Wildlife as a barrier to fish needing correction. It is roughly 60 percent passable in its current condition and species such as bull trout, steelhead, coho and cutthroat salmon have been identified at this location.

This work is part of WSDOT’s Fish Passage Barrier Removal Program, which identifies and removes barriers to fish caused by culverts under state highways. WSDOT works in partnership with the Washington Department of Fish and Wildlife to identify culverts that, once replaced, will increase fish habitat. This particular project has a potential habitat gain for fish of approximately two miles.

During construction, travelers will use a one-lane detour at the site that will be controlled by a temporary signal. Travelers should expect minor delays, reduced speed limits and occasional roadway closures. Any roadway closures will be announced in advance.

The End Result

The new 5’x5’, 55-foot long concrete boxed culvert is expected to open nearly two miles of potential fish habitat. This fish passage project will help restore the streambeds to a more natural state and improve fish passage for local migratory fish.


  • Contract awarded to Interwest Construction: Monday, Dec. 2, 2019
  • Construction begins Monday, June 22, 2020.
  • Construction mostly complete (roadway fully reopens to traffic) fall 2020.



Financial Data for PIN 310198Q
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $3,321
CWA $0
Total $3,321


Dan McKernan
WSDOT Port Angeles Project Engineer

Tina Werner
WSDOT Media Relations 

US 101 Hoh River Thumbnail