Baker River Bridge
Concrete arch bridge over Baker River on Old WA 20 in Concrete
Open to traffic
Built 1916; rehabilitated 2004

Canoe Pass Bridge
Steel arch bridge over Canoe Pass on WA 20
Open to traffic
Built 1935

Cascade River Road Bridge
Through truss bridge over Skagit River on Cascade River Road in Marblemount
Open to traffic
Built 1930

Concrete Sauk Valley Road Bridge
Truss bridge over Sauk River on Concrete Sauk Valley Road
Open to traffic
Built 1930

Dalles Bridge
Through truss bridge over Skagit River on Concrete Sauk Valley Road
Open to traffic
Built 1952

Rainbow Bridge
Steel through arch bridge over Swinomish Slough on Pioneer Parkway in La Conner
Open to traffic
Built 1957

Riverside Drive Bridge
Swing bridge over Skagit River on Riverside Drive in Mount Vernon
Open to traffic
Built 1938

Samish River Bridge
Concrete arch bridge over Samish River on WA 11
Open to traffic
Built 1920

Samish River Bridge
Through truss bridge over Samish River on Burl. Alger Road
Open to traffic
Built 1934

Sauk River Bridge
Through truss bridge over Sauk River on WA 530
Open to traffic
Built 1958

Skagit River Bridge
Swing bridge over Skagit River on WA 536 in Mount Vernon
Open to traffic
Built 1953

Skagit River Bridge
Through truss bridge over Skagit River on I-5 in Mount Vernon
Open to traffic
Built 1955

Skagit River Bridge
Through truss bridge over Skagit River on WA 9
Open to traffic
Built 1959

West Fork Nookachamps Creek Bridge
Concrete arch bridge over West Fork Nookachamps Creek on WA 9 in Mount Vernon
Open to traffic
Built 1920