Siskiyou County

NameLocationStatusDesignYear BuiltYear LostSpan Length (ft.)Total Length (ft.)
Applegate River Bridge1040 Road over Applegate RiverOpen to trafficBailey pony truss2016--140.8145.0
Ash Creek BridgeKlamath River Road over Klamath RiverReplaced, in storage for future reuseBaltimore through truss1901--160.1176.8
Blue Nose BridgeBridge over Klamath RiverReplaced by a new bridge ~.3 mile upstreamPennsylvania through truss19241973310.0--
Bogus Creek BridgeAger-Beswich Road over Bogus CreekReplaced by a new bridge, one abutment still visiblePony truss1925--39.042.0
Boulder Creek BridgeMcKeen Road over Boulder CreekOpen to trafficBailey pony truss1967--78.180.1
Boulder Creek Road BridgeBoulder Creek Road over Canyon CreekWashed out in flood, replaced by a steel girder bridgePony truss1984--44.946.9
Callahan Dump BridgeWildcat Creek Road over Scott RiverOpen to trafficPratt through truss1909--130.6150.0
Canyon Creek Road BridgeCanyon Creek Road over Scott RiverOpen to trafficWire suspension1938--149.9200.1
Chester Barton Memorial BridgeBar Road over Klamath RiverOpen to trafficModern polygonal Warren pony truss1998--131.2249.4
Clear Creek Covered BridgeSH 96 over Clear CreekReplaced by a new bridgeHowe through truss19211950--128.0
Clear Creek Road BridgeClear Creek Road over Fivemile CreekOpen to trafficDeck truss1950--79.782.7
Clear Creek Road BridgeClear Creek Road over Fourmile CreekOpen to trafficDeck truss1950--49.950.9
Cottonwood Creek BridgeFront Street over Cottonwood CreekReplaced by a pre-cast slab bridge in 2006Pony truss1935200649.9119.1
Cottonwood Creek BridgeCR 9K006 over Cottonwood CreekOpen to trafficPratt through truss1957--80.183.0
Crag View Drive-Little Castle Creek BridgeCrag View Drive over Little Castle CreekOpen to trafficConcrete tee beam1917--40.084.0
Dillon Creek Covered BridgeSH 96 over Dillon CreekReplaced by a new bridgeHowe through truss19221950--224.0
Dry Gulch BridgeCA 263 over Dry GulchOpen to trafficOpen-spandrel arch1929--200.1345.2
Dunsmuir Avenue BridgeDunsmuir Avenue over Sacramento River and SP RRReplaced by a new bridgeOpen-spandrel arch19371966----
Elk Creek Road BridgeElk Creek Road over Elk CreekOpen to trafficDeck truss1949--79.7122.7
Elk Creek Road BridgeElk Creek Road over Klamath RiverOpen to trafficParker through truss1953--250.0550.9
Eller Lane BridgeEller Lane over Scott RiverOpen to trafficPratt through truss1910--140.1142.1
Fay Lane BridgeFay Lane over Scott RiverNo longer existsThrough truss--------
French Creek Road BridgeFrench Creek Road over North Fork French CreekOpen to trafficWarren pony truss1975--60.061.0
Happy Camp BridgeSecond Avenue over Indian CreekReplaced by new bridgeParker through truss19241966----
Horse Creek Road BridgeHorse Creek Road over Klamath RiverOpen to trafficWire suspension1930--200.1288.1
Hutton Creek BridgeBailey Hill Road over Hutton CreekOpen to trafficConcrete tee beam1915--29.934.1
Klamath River BridgeCA 96 over Klamath RiverOpen to trafficWarren through truss1953--186.0419.0
Klamath River BridgeCA 96 over Klamath RiverOpen to trafficParker through truss1954--190.0383.9
Klamath River BridgeState Route 263 over Klamath RiverOpen to trafficConcrete tee beam1931--80.1467.9
Louie Road BridgeLouie Road over Shasta River (Louie Br)Open to trafficPratt through truss1935--80.1220.2
North Fork Salmon Road BridgeN. Fork Salmon Road over Sawmill GulchOpen to trafficPony truss1965--69.969.9
Peach Orchard Road-Moffett Creek BridgePeach Orchard Road over Moffett CreekOpen to trafficConcrete tee beam1920--40.042.0
Pedestrian Bridge over Klamath RiverPedestrian trail over Klamath RiverWire suspension--------
Pioneer BridgeCA 263 over Shasta RiverOpen to trafficWarren deck truss1931--414.1794.0
Quartz Valley Road Bridge (1935)Quartz Valley Road over Lower Shackleford CreekReplaced by a new pony truss bridge and moved to a nearby field.Polygonal Warren pony truss1935--100.1102.0
Quartz Valley Road Bridge (2005)Quartz Valley Road over Lower Shackleford CreekOpen to trafficPolygonal Warren pony truss with all verticals2005--102.7102.7
Roxbury BridgeRoxbury Drive over Scott RiverClosed to all trafficPennsylvania through truss1915--220.0223.0
Sacramento River BridgeI-5 over Sacramento RiverOpen to trafficOpen-spandrel arch1955--191.0579.1
Salmon River Covered Bridge 05-47-01road over North Fork Salmon RiverNo longer existsHowe through truss19241964--82.0
Scott Mountain Road BridgeScott Mountain Road over East Fork Scott RiverOpen to trafficWarren pony truss1914--80.182.0
Shasta River BridgeState Route 263 over Shasta RiverOpen to trafficConcrete tee beam1928--60.0274.9
Shasta River BridgeCA 263 over Shasta RiverOpen to trafficOpen-spandrel arch1931--207.0582.0
Shelly BridgeAnderson Grade Road over Shasta RiverClosed to all trafficPratt through truss1899--69.8151.3
Somes Bar BridgeSR 96 over Salmon RiverReplaced by a new bridgeThrough truss--1974----
UP - Cantara Loop BridgeUnion Pacific Railroad over Sacramento RiverOpen to trafficDeck plate girder--------
UP - Dry Creek TrestleUP RR over Dry CreekOpen to trafficDeck plate girder------1140.0
UP - Sacramento River BridgeUnion Pacific Railroad over Sacramento RiverOpen to trafficPratt through truss1901--180.0180.0
UP - Tunnel 17Union Pacific Railroad under Under Dorris HillOpen to trafficTunnel1909----2076.0
UP - Tunnel 18Union Pacific Railroad under Open to trafficTunnel1909----1145.0
Walker BridgeWalker Bridge Connection Road over Klamath RiverReplaced by new bridge, moved to new location for pedestrian usagePennsylvania through truss1893--330.1373.0