COVID-19
For the latest COVID-19 health guidance, statistics and resources, visit Coronavirus.wa.gov.
WSDOT replaced the old narrow round culvert channeling Langlois Creek with a large box culvert. Langlois Creek crosses under State Route 203 between Northeast 32nd Street and Langlois Lake Road in Carnation. The old 30-inch diameter culvert was too narrow and created water flows that were occasionally too low or strong for fish to navigate upstream. Installing the 18-foot wide box culvert allows the creek to flow more naturally under the highway and improve fish habitat in the area for migratory steelhead, cutthroat and coho. The completion of this project opened up almost 5.5 miles of additional fish habitat.
The old culvert was one of about 1,000 culverts across the state that are mandated to be replaced. In 2013, the U.S. District Court for Western Washington ruled that the state must remove culverts that block fish passage under state highways.
Northwest Region Communications
15700 Dayton Ave. N.
Seattle, WA 98133
NWPublicAffairs@wsdot.wa.gov
206-440-4699
Langlois Creek flows through a narrow round concrete culvert adjacent to SR 203 in Carnation.
View more photos