Cowlitz River Bridge (Cowlitz County, Washington)
Built 1951
Through truss bridge over Cowlitz River on WA 4 in Kelso
Open to traffic

Deadwood Creek Bridge (Pierce County, Washington)
Built 1994
Concrete arch bridge over Deadwood Creek on WA 4
Open to traffic

Elochoman River Bridge (Wahkiakum County, Washington)
Built 1955
Through truss bridge over Elochoman River on WA 4
Open to traffic

Grays River Bridge (Wahkiakum County, Washington)
Built 1938
Through truss bridge over Grays River on WA 4
Open to traffic