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Siskiyou County

Applegate River Bridge [Map]
Bailey pony truss bridge over Applegate River on 1040 Road
Open to traffic
Built 2016

Ash Creek Bridge [Map · Street View]
Baltimore through truss bridge over Klamath River on Klamath River Road
Replaced, in storage for future reuse
Built 1901

Blue Nose Bridge [Map]
Lost Through truss bridge over Klamath River
Replaced by a new bridge ~.3 mile upstream
Built 1924; Replaced 1966; Not fully removed until 1973

Bogus Creek Bridge [Map · Street View]
Pony truss bridge over Bogus Creek on Ager-Beswich Road
Replaced by a new bridge, one abutment still visible
Built 1925

Boulder Creek Bridge [Map]
Bailey pony truss bridge over Boulder Creek on McKeen Road
Open to traffic
Built 1967

Boulder Creek Road Bridge [Map]
Pony truss bridge over Canyon Creek on Boulder Creek Road
Washed out in flood, replaced by a steel girder bridge
Built 1984

Callahan Dump Bridge [Map · Street View]
Through truss bridge over Scott River on Wildcat Creek Road
Open to traffic
Built 1909

Canyon Creek Road Bridge [Map]
Suspension bridge over Scott River on Canyon Creek Road
Open to traffic
Built 1938, rehabilitated 1998

Chester Barton Memorial Bridge [Map · Street View]
Polygonal Warren pony truss bridge over Klamath River on Bar Road
Open to traffic
Built 1998

Clear Creek Road Bridge [Map]
Deck truss bridge over Fourmile Creek on Clear Creek Road
Open to traffic
Built 1950

Clear Creek Road Bridge [Map]
Deck truss bridge over Fivemile Creek on Clear Creek Road
Open to traffic
Built 1950

Cottonwood Creek Bridge [Map]
Lost pony truss bridge over Cottonwood Creek on Front Street in Hornbrook
Replaced by a pre-cast slab bridge in 2006
Built 1935, Replaced 2006

Cottonwood Creek Bridge [Map · Street View]
Pratt through truss bridge over Cottonwood Creek on CR 9K006
Open to traffic
Probably relocated here 1957; rehabilitated 1987

Crag View Drive-Little Castle Creek Bridge [Map · Street View]
Concrete tee beam bridge over Little Castle Creek on Crag View Drive
Open to traffic
Built 1917; rehabilitated 1945

Dry Gulch Bridge [Map · Street View]
Concrete arch bridge over Dry Gulch on CA 263
Open to traffic
Built 1929

Dunsmuir Avenue Bridge [Map]
Lost Open-spandrel arch bridge over Sacramento River and SP RR on Dunsmuir Avenue
Replaced by a new bridge

Elk Creek Road Bridge [Map · Street View]
Parker through truss bridge over Klamath River on Elk Creek Road
Open to traffic
Built 1953

Elk Creek Road Bridge [Map]
Deck truss bridge over Elk Creek on Elk Creek Road
Open to traffic
Built 1949

Eller Lane Bridge [Map · Street View]
Through truss bridge over Scott River on Eller Lane
Open to traffic
Built 1910; rehabilitated 1985

Fay Lane Bridge [Map]
Lost Through truss bridge over Scott River on Fay Lane
No longer exists

French Creek Road Bridge [Map]
Subdivided Warren Pony truss bridge over North Fork French Creek on French Creek Road
Open to traffic
Built 1975

Happy Camp Bridge (1924) [Map]
Lost Parker through truss bridge over Indian Creek on Second Avenue
Replaced by new bridge
Built 1924; Replaced 1966

Horse Creek Road Bridge [Map · Street View]
Suspension bridge over Klamath River on Horse Creek Road
Open to traffic
Built 1930 to replace footbridge; rehabilitated 1944

Hutton Creek Bridge [Map · Street View]
Concrete tee beam bridge over Hutton Creek on Bailey Hill Road
Open to traffic
Built 1915; Rehabilitated 1924

Klamath River Bridge [Map · Street View]
Through truss bridge over Klamath River on CA 96
Open to traffic
Built 1953

Klamath River Bridge [Map · Street View]
Through truss bridge over Klamath River on CA 96
Open to traffic
Built 1954 (Contractor plaque says 1953)

Klamath River Bridge [Map · Street View]
Concrete tee beam bridge over Klamath River on State Route 263
Open to traffic
Built 1931

Louie Road Bridge [Map · Street View]
Through truss bridge over Shasta River (Louie Br) on Louie Road
Open to traffic
Built 1935

North Fork Salmon Road Bridge [Map]
Pony truss bridge over Sawmill Gulch on N. Fork Salmon Road
Open to traffic
Built 1965

Peach Orchard Road-Moffett Creek Bridge [Map · Street View]
Concrete tee beam bridge over Moffett Creek on Peach Orchard Road
Open to traffic
Built 1920

Pedestrian Bridge over Klamath River [Map · Street View]
Wire suspension bridge over Klamath River on Pedestrian trail

Pioneer Bridge [Map · Street View]
Deck truss bridge over Shasta River on CA 263
Open to traffic
Built 1931

Quartz Valley Road Bridge [Map · Street View]
Relocated pony truss bridge over Lower Shackleford Creek on Quartz Valley Road
Replaced by a new pony truss bridge and moved to a nearby field.
Built 1935, replaced in 2005 and moved to a nearby field.

Quartz Valley Road Bridge [Map · Street View]
Polygonal Warren pony truss with all verticals bridge over Lower Shackleford Creek on Quartz Valley Road
Open to traffic
Built 2005

Roxbury Bridge [Map · Street View]
Through truss bridge over Scott River on Roxbury Drive
Closed to all traffic
Built 1915

Sacramento River Bridge [Map · Street View]
Concrete arch bridge over Sacramento River on I-5 in Dunsmuir
Open to traffic
Built 1955; rehabilitated 1983

Salmon River Covered Bridge 05-47-01 [Map]
Lost Howe covered through truss Bridge over North Fork Salmon River on road
No longer exists
Built 1924 Collapsed December 1964

Scott Mt. Road Bridge [Map · Street View]
Warren Pony truss bridge over East Fork Scott River on Scott Mt Road
Open to traffic
Built 1914

Shasta River Bridge [Map · Street View]
Concrete arch bridge over Shasta River on CA 263
Open to traffic
Built 1931

Shasta River Bridge [Map · Street View]
Concrete tee beam bridge over Shasta River on State Route 263
Open to traffic
Built 1928

Shelly Bridge [Map · Street View]
Through truss bridge over Shasta River on Anderson Grade Road
Closed to all traffic
Built 1899, Closed to Traffic 1982

UP - Cantara Loop Bridge [Map]
Deck plate girder bridge over Sacramento River on Union Pacific Railroad
Open to traffic
Built ?; Massive guardrail constructed 1991

UP - Dry Creek Trestle [Map]
Deck plate girder bridge over Dry Creek on UP RR
Open to traffic

UP - Sacramento River Bridge [Map]
Pin-connected Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic
Built 1901

UP - Tunnel 17 [Map]
Tunnel under Under Dorris Hill on Union Pacific Railroad
Open to traffic
Built 1909

UP - Tunnel 18 [Map]
Tunnel on Union Pacific Railroad
Open to traffic
Built 1909

Walker Bridge [Map · Street View]
Pennsylvania through truss bridge over Klamath River on Walker Bridge Connection Road
Replaced by new bridge, moved to new location for pedestrian usage
Built in Folsom, CA 1893, Moved to Siskiyou Co. 1932, Replaced and Moved 1997