Commuters on State Route 161 should brace for some construction-related disruptions this summer, as work kicks off to enhance fish passages in Pierce County. The Washington State Department of Transportation (WSDOT) is set to begin major improvements on June 23, just north of Eatonville, targeting culverts that hinder South Creek’s aquatic migrants.
The project is necessary in order to quickly remove and replace two culverts that currently block passage for species like coho salmon, steelhead, and resident trout. To minimize interference with traffic, a temporary single-lane bypass road will be established, facilitated by traffic signals to alternately guide vehicles through the zone around the clock. A significant speed reduction will be in effect on SR 161 between mileposts 14.5 and 15.2, dipping from 55 mph to a cautious 25 mph, according to WSDOT.
In preparation for the work, crews will start by clearing the obstructive vegetation next week. In a move to accommodate those on two wheels, a push button at the traffic signal will be installed allowing bicyclists to safely request more travel time between signal changes.
The end goal is a larger box culvert that will not only facilitate the free movement of fish but also improve the overall habitat along the stream. There's an intention to carefully rebuild the streambed to give these local species a fighting chance at survival. With the construction expected to conclude by fall 2025, WSDOT is laying the groundwork for an ecosystem that supports both land-based and aquatic wildlife.
Travelers navigating this stretch of road are advised to plan for delays and exercise caution as the construction progresses. For those interested in the project’s timeline and specifics, WSDOT has provided detailed information on their website.
