Sierra County

Cedar Grove Ravine Bridge   [Map]
Steel stringer bridge over Cedar Grove Ravine on Port Wine Ridge Rd
Open to traffic
Built 1975
Durgan Bridge   [Map · Street View]
Pratt through truss bridge over North Fork Yuba River on Nevada Street
Open to traffic
Built 1938
Hansen Bridge   [Map]
Pony truss bridge over Downie River on East River Street
Open to traffic
Built 1938; rehabilitated 1980
Hospital Bridge   [Map]
Pratt through truss bridge over Downie River on Former Upper Main Street
Open to pedestrians only
Built 1910 by Western Bridge and Construction Company; bypassed 1986
Jersey Bridge   [Map · Street View]
Pony truss bridge over Downie River on CA 49
Open to traffic
Built 1938; rehabilitated 1992
Middle Yuba River Bridge   [Map]
Lost Pratt pony truss bridge over Middle Yuba River on Unnamed Dirt Road
Collapsed
Mountain House Road Bridge   [Map · Street View]
Warren Pony truss bridge over North Fork Yuba River on Mountain House Road
Open to traffic
Built 1936; rehabilitated 1999
New Kanaka Creek Bridge   [Map]
Deck plate girder bridge over Kanaka Creek on Plumbago Road
Open to traffic
Built 1985
Old Kanaka Creek Bridge   [Map]
Abandoned Pratt pony truss bridge over Kanaka Creek on Plumbago Road
Abandoned
Bypassed 1985
Plumbago Road Bridge   [Map]
Warren pony truss bridge over Middle Fork Yuba River on Plumbago Rd
Open to traffic
Built 1935
Port Wine Little Bridge   [Map]
A-frame steel stringer bridge over Slate Creek on Port Wine Road
Open to traffic
Built 1936
Port Wine Steel Bridge   [Map]
Through truss bridge over Slate Creek on Port Wine Road South of La Porte
Open to traffic
Built 1910
Saint Louis Bridge   [Map]
Deck arch bridge over Slate Creek on St Louis Road
Open to pedestrians only
Built 1913, bypassed and kept open for pedestrians 1990
Tyler-Foote Crossing Bridge   [Map]
Deck plate girder bridge over Middle Fork Yuba River on Tyler Foote Crossing Road
Open to traffic
Deck plate girder bridge replacement bridge on historic route