Project overview
This project replaced five outdated culverts under US 12 and State Route 8 in Grays Harbor County between Montesano and the Thurston County line for improved fish migration.
What to expect
No further work is expected for this project.
This project addressed multiple barriers to fish under US 12 and State Route 8 in Grays Harbor County between Montesano and the Thurston County line.
This project replaced five outdated culverts at the following locations:
US 12
- MP 12.36 – Camp Creek - Complete
- MP 17.56 – Unnamed Tributary to Wenzel Slough - Complete
- MP 19.17 – Unnamed Tributary to Vance Creek - Complete
SR 8
- MP 3.16 – Unnamed Tributary to Wildcat Creek - Complete
- MP 9.10 – Unnamed Tributary to Mox Chehalis Creek - Complete
The Camp Creek, Wenzel Slough, Vance Creek tributary and Wildcat Creek tributary culverts were corrected with bridges. A new box culvert was installed at the Mox Chehalis Creek site. The new bridges and culvert allow fish to swim freely under the highway.
Correcting fish passage barriers is an important part of the state's efforts to protect and restore fish runs negatively affected by outdated culverts under state highways.
In 2013, a federal court injunction required the state to significantly increase the state’s efforts in removing state-owned culverts that block habitat for salmon, bull trout and steelhead.
