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Del Norte County

Big Flat Road Bridge [Map]
Deck truss bridge over Hurdygurdy Creek on Big Flat Road
Open to traffic
Built 1948

Douglas Memorial Bridge [Map · Street View]
Lost Open-spandrel arch bridge over Klamath River on old US 101
Destroyed by flood
Built 1926, Destroyed by flooding 1964

George E. Tryon Bridge [Map · Street View]
Steel arch bridge over South Fork Smith River on South Fork Road
Open to traffic
Built 1948

Hiouchi Bridge [Map · Street View]
Lost cantilevered through truss bridge over Smith River on US 199
Replaced by new bridge
Built 1929; damaged by an oversized truck on March 31, 1989; demolished August 1989

Middle Fork Smith River Bridge [Map · Street View]
Concrete arch bridge over Middle Fork Smith River on US 199
Open to traffic
Built 1925; rehabilitated 1972

Myrtle Creek Bridge [Map · Street View]
Concrete arch bridge over Myrtle Creek on US 199
Open to traffic
Built 1984

Randolph Collier Tunnel [Map · Street View]
Tunnel under Oregon Mountain on US 199
Open to traffic
Built 1963

Rowdy Creek Bridge [Map · Street View]
Lost Concrete deck girder bridge over Rowdy Creek on Fred D. Haight Drive
Replaced by new bridge
Built 1913, Partial Collapse 1932, Replaced 1989

Salt Creek Road Bridge [Map]
Pony truss bridge over Salt Creek on Salt Creek Road in Klamath
Open to traffic
Built 1975

Smith River Bridge [Map · Street View]
Deck plate girder bridge over Smith River on US 101
Open to traffic
Built 1940

South Fork Road Bridge [Map]
Deck truss bridge over Rock Creek on South Fork Road
Open to traffic
Built 1952