Historic Bridges of the U.S. | Del Norte County

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

Middle Fork Smith River Bridge
Concrete arch bridge over Middle Fork Smith River on US 199
Open to traffic
Built 1925; rehabilitated 1972

Myrtle Creek Bridge
Concrete arch bridge over Myrtle Creek on US 199
Open to traffic
Built 1984

Oregon Mountain Tunnel
Tunnel under Oregon Mountain on US 199
Open to traffic
Built 1963

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

South Fork Road Bridge
Steel arch bridge over South Fork Smith River on South Fork Road
Open to traffic
Built 1948

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