Historic Bridges of the U.S.

North Fork Nooksack River Bridge (Whatcom County, Washington)
Built 1954
Through truss bridge over North Fork Nooksack River on WA 9
Open to traffic

Pilchuck Creek Bridge (Snohomish County, Washington)
Built 1916
Concrete arch bridge over Pilchuck Creek on WA 9
Open to traffic

Skagit River Bridge (Skagit County, Washington)
Built 1959
Through truss bridge over Skagit River on WA 9
Open to traffic

Snohomish River Bridge (Snohomish County, Washington)
Built 1959
Through truss bridge over Snohomish River on WA 9 in Snohomish
Open to traffic

West Fork Nookachamps Creek Bridge (Skagit County, Washington)
Built 1920
Concrete arch bridge over West Fork Nookachamps Creek on WA 9 in Mount Vernon
Open to traffic