Alsea Bay Bridge (Lincoln County, Oregon)
Built 1992
Rainbow arch bridge over Alsea Bay on US 101 in Waldport
Open to traffic

Arch Cape Creek Bridge (Clatsop County, Oregon)
Built 1937
Wooden bridge over Arch Cape Creek on US 101
Open to traffic

Arch Cape Tunnel (Clatsop County, Oregon)
Built 1937
Tunnel under Arch Cape on US 101
Open to traffic

Arroyo Quemado Bridge (Santa Barbara County, California)
Built 1917
Concrete arch bridge over Arroyo Quemado on US 101
Open to traffic

Austins Point Half Viaduct (Clatsop County, Oregon)
Built 1933
Wooden bridge over Austins Point on US 101
Open to traffic

Big Creek Bridge (Lane County, Oregon)
Built 1931
Rainbow arch bridge over Big Creek on US 101
Open to traffic

Big Quilcene River Bridge (Jefferson County, Washington)
Built 1936
Through truss bridge over Big Quilcene River on US 101 in Quilcene
Open to traffic

Brush Creek Bridge (Curry County, Oregon)
Built 1998
Concrete arch bridge over Brush Creek on US 101
Open to traffic

Bullards Bridge (Coos County, Oregon)
Built 1952
Vertical lift bridge over Coquille River on US 101
Open to traffic

Calawah River Bridge (Clallam County, Washington)
Built 1938
Through truss bridge over Calawah River on US 101 in Forks
Open to traffic

Cape Creek Bridge (Lane County, Oregon)
Built 1931
Concrete arch bridge over Cape Creek on US 101
Open to traffic

Cape Creek Tunnel (Lane County, Oregon)
Built 1931
Tunnel on US 101
Open to traffic

Chehalis River Bridge (Grays Harbor County, Washington)
Built 1955
Bascule bridge over Chehalis River on US 101 in Aberdeen
Open to traffic

Columbia River Bridge (Clatsop County, Oregon)
Built 1966
Through truss bridge over Columbia River on US 101
Open to traffic

Columbia River Bridge (Pacific County, Washington)
Built 1966
Through truss bridge over Columbia River on US 101
Open to traffic

Columbia River Bridge (Clatsop County, Oregon)
Built 1966
Through truss bridge over Columbia River on US 101 in Astoria
Open to traffic

Conde B. McCullough Memorial Bridge (Coos County, Oregon)
Built 1936
Truss bridge over Coos Bay on US 101 in North Bend
Open to traffic

Cummings Creek Bridge (Lane County, Oregon)
Built 1931
Concrete arch bridge over Cummings Creek on US 101
Open to traffic

Deer Creek Bridge (Lincoln County, Oregon)
Built 1938
Wooden bridge over Deer Creek on Old US 101
Open to traffic

Depoe Bay Bridge (Lincoln County, Oregon)
Built 1927
Concrete arch bridge over Depoe Bay on US 101 in Depoe Bay
Open to traffic

Duckabush River Bridge (Jefferson County, Washington)
Built 1934 by the West Coast Construction Co.
Rainbow arch bridge over Duckabush River on US 101 in Brinnon
Open to traffic

Eel River Bridge (Humboldt County, California)
Built 1941; rehabilitated 1989
Through truss bridge over Eel River on US 101 in Rio Dell
Open to traffic

Elwha River Bridge (Clallam County, Washington)
Built 1926; rehabilitated 1959
Concrete arch bridge over Elwha River on US 101
Open to traffic

Eureka Slough Bridge (Humboldt County, California)
Built 1943; rehabilitated 2001
Pony truss bridge over Eureka Slough on US 101 in Eureka
Open to traffic

Florence Bridge (Lane County, Oregon)
Built 1936; rehabilitated 1977
Bascule bridge over Siuslaw River on US 101 in Florence
Open to traffic

Fort Columbia Tunnel (Pacific County, Washington)
Built 1932
Tunnel on US 101
Open to traffic

Gaviota Creek Bridge (Santa Barbara County, California)
Built 1931
Concrete arch bridge over Gaviota Creek on US 101
Open to traffic

Golden Gate Bridge (San Francisco County, California)
Built 1937
Suspension bridge over San Francisco Bay on US 101 at San Francisco
Open to traffic

Hamma Hamma River Bridge (Mason County, Washington)
Built 1924
Rainbow arch bridge over Hamma Hamma River on US 101
Open to traffic

Hamma Hamma River Bridge (Mason County, Washington)
Built 1924
Rainbow arch bridge over Hamma Hamma River on US 101
Open to traffic

Hoh River Bridge (Jefferson County, Washington)
Built 1931
Deck truss bridge over Hoh River on US 101
Open to traffic

Holly Drive under the Hollywood Freeway (Los Angeles County, California)
Built 1952
Concrete arch bridge over Holly Drive on US 101 in Los Angeles
Open to traffic

Hoquiam River Bridge (Grays Harbor County, Washington)
Built 1970
Vertical lift bridge over Hoquiam River on US 101 in Hoquiam
Open to traffic

Hoquiam River Bridge (Grays Harbor County, Washington)
Built 1928; rehabilitated 1948
Bascule bridge over Hoquiam River on US 101 in Hoquiam
Open to traffic

Humptulips River Bridge (Grays Harbor County, Washington)
Built 1950
Through truss bridge over Humptulips River on US 101 in Humptulips
Open to traffic

Irwin Creek Bridge (Marin County, California)
Built 1895; rehabilitated 1987
Concrete arch bridge over Irwin Creek on US 101 in San Rafael
Open to traffic

Issac Lee Patterson Bridge (Curry County, Oregon)
Built 1930
Concrete arch bridge over Rogue River on US 101 in Gold Beach
Open to traffic

Lake Lytle Outlet Bridge (Tillamook County, Oregon)
Built 1938
Wooden bridge over Lake Lytle Outlet on US 101
Open to traffic

Mad River Bridge (Humboldt County, California)
Built 1929; rehabilitated 1959
Through truss bridge over Mad River on US 101 in McKinleyville
Open to traffic

Mission Bridge over the Los Angeles River (Los Angeles County, California)
Built 1944; rehabilitated 1955
Concrete arch bridge over Los Angeles River on US 101 in Los Angeles
Open to traffic

New Youngs Bay Bridge (Clatsop County, Oregon)
Built 1964
Vertical lift bridge over Youngs Bay on US 101 in Astoria
Open to traffic

Rinehart Creek Bridge (Curry County, Oregon)
Built 1954
Deck truss bridge over Rinehart Creek on US 101
Open to traffic

Rocky Creek Bridge (Lincoln County, Oregon)
Built 1927; rehabilitated 2001
Concrete arch bridge over Rocky Creek on US 101 Frontage Road
Open to traffic

Russian River Bridge (Mendocino County, California)
Built 1934
Through truss bridge over Russian River on US 101
Open to traffic

Skokomish River Bridge (Mason County, Washington)
Built 1932
Through truss bridge over Skokomish River on US 101 in Skokomish
Open to traffic

Sol Duc River Bridge (Clallam County, Washington)
Built 1958
Through truss bridge over Sol Duc River on US 101
Open to traffic

Sol Duc River Bridge (Clallam County, Washington)
Built 1948
Through truss bridge over Sol Duc River on US 101
Open to traffic

Sol Duc River Bridge (Clallam County, Washington)
Built 1948
Through truss bridge over Sol Duc River on US 101
Open to traffic

Sol Duc River Bridge (Clallam County, Washington)
Built 1941
Through truss bridge over Sol Duc River on US 101
Open to traffic

Sol Duc River Bridge (Clallam County, Washington)
Built 1941
Through truss bridge over Sol Duc River on US 101
Open to traffic

Tenmile Creek Bridge (Lane County, Oregon)
Built 1931
Rainbow arch bridge over Tenmile Creek on US 101
Open to traffic

Thomas Creek Bridge (Curry County, Oregon)
Built 1961
Deck truss bridge over Thomas Creek on US 101
Open to traffic

Umpqua River Bridge (Douglas County, Oregon)
Built 1936
Swing bridge over Umpqua River on US 101 in Reedsport
Open to traffic

US 101 Bridge (Ventura County, California)
Built 1961
Pony truss bridge over the Union Pacific Railroad on US 101 in San Buenaventura
Open to traffic

West Beaver Creek Bridge (Tillamook County, Oregon)
Built 1914
Concrete arch bridge over West Beaver Creek on US 101
Open to traffic

Wilson River Bridge (Tillamook County, Oregon)
Built 1931
Rainbow arch bridge over Wilson River on US 101
Open to traffic

Yaquina Bay Bridge (Lincoln County, Oregon)
Built 1934
Steel through arch bridge over Yaquina Bay on US 101 in Newport
Open to traffic