There are 2,710 bridges in this category · Only showing 1,888 bridges with photos
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California

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NWP - Hacienda Howe Truss (Sonoma County, California)
Built 1876; Replaced 1890
Lost Bridge over Russian River on Northwestern Pacific Railroad
Replaced by a new bridge

NWP - Hacienda Metal Camelback Truss (Sonoma County, California)
Built 1914
Lost Camelback through truss bridge over Russian River on Northwestern Pacific Railroad
Replaced by a new bridge

NWP - Hacienda Wooden Pratt Truss (Sonoma County, California)
Built 1890; Burned 1914
Lost Pratt through truss bridge over Russian River on Northwestern Pacific Railroad
Destroyed by fire

NWP - Haystack's Landing Bridge (1903) (Sonoma County, California)
Built 1903; Replaced 2015; last train operated over Sept. 21, 2015
Warren through truss bridge over Pataluma River on Railroad (SMART)
Replaced by a new bridge

NWP - Healdsburg Bridge (Sonoma County, California)
Built 1921 to replace earlier timber bridge
Subdivided Warren through truss bridge over Russian River on Northwestern Pacific Railroad
Closed

NWP - Island Mountain Bridge (1965) (Trinity County, California)
Built 1965
Warren through truss bridge over Eel River on Northwestern Pacific Railroad
Closed to all traffic

NWP - Island Mountain Tunnel (Trinity County, California)
Tunnel on Northwestern Pacific Railroad
Closed

NWP - Keyes Estuary Phoenix Bridge (Marin County, California)
Built 1880 elsewhere; Relocated here 1906/7; Removed 1931 and relocated again
Pratt through truss bridge over Key's Creek on Northwestern Pacific Railroad
Removed

NWP - Keys Creek Tunnel (Sonoma County, California)
Abandoned tunnel under hillside on North Western Pacific
Derelict/abandoned

NWP - Lagunitas Creek Howe Bridge (Marin County, California)
Built 1875; Replaced 1930
Lost Howe through truss bridge over Lagunitas Creek & Road on Northwestern Pacific Railroad
Replaced by a new bridge

NWP - Loleta Trestle (Humboldt County, California)
Built 1930
Deck plate girder bridge over Loleta creek on Northwestern Pacific Railroad
Closed to all traffic

NWP - Loleta Tunnel (Humboldt County, California)
Built 1884; Renovated in 1960
Abandoned tunnel on Northwestern Pacific Railroad
Abandoned

NWP - Monte Rio Bridge (Sonoma County, California)
Relocated here 1909. Line abandoned 1935. Spans relocated 1937.
Lost Pratt through truss bridge over Russian River on Northwestern Pacific Railroad
Removed

NWP - Old Redwood Highway Overpass (Sonoma County, California)
Bridge over Old Redwood Highway on NWP RR
Open to traffic

NWP - Shively Tunnel (Humboldt County, California)
Abandoned tunnel under hillside on North Western Pacific
Derelict/abandoned

NWP - South Fork Bridge (1910) (Humboldt County, California)
Built 1910
Lost Pratt through truss bridge over South Fork Eel River on Northwestern Pacific Railroad
Replaced by a new bridge

NWP - Van Duzen River Bridge (Humboldt County, California)
Built 1913
Pratt through truss bridge over Van Duzen River on Eureka Southern Railroad
Closed to all traffic

NWP - Van Duzen River Bridge (Old) (Humboldt County, California)
Replaced 1913
Lost Through truss bridge over Van Duzen River on Northwestern Pacific Railroad
Replaced by a new bridge

NWP - Wingo Lift Bridge (Sonoma County, California)
Built 1920 by the Toledo Bridge & Crane Co
Pony/through plate girder bridge over Slough feeding San Pablo Bay on Northwestern Pacific Railroad (NWP)
Open to traffic

O'Byrnes Ferry Covered Bridge (Calaveras County, California)
Removed with Tri-Dam Project in 1955
Lost Through truss covered bridge over Stanislaus River on O'Byrnes Ferry Road
Replaced by a new bridge

O'Donnell Lane Bridge (Sonoma County, California)
Built 1900, reconditioned unknown later date
Stone arch bridge over Calabazas Creek on O'Donnell Lane in Glen Ellen
Open to traffic

Oak Avenue Overpass (Los Angeles County, California)
Originally crossed Pacific Electric Railway, now a pedestrian path.
Concrete arch bridge over Pedestrian Path on Bradbourne Ave in Bradbury
Open to Pedestrians Only

Oak Grove Drive Bridge (Los Angeles County, California)
Original bridge built 1896; New bridge added in 1955
Beam bridge over Arroyo Seco on Oak Grove Drive
Open to traffic

Oak Knoll Ave (Napa County, California)
Built 1930
Concrete tee beam bridge over Napa River on Oak Knoll Avenue
Open to traffic

Oak Knoll Avenue Bridge (Napa County, California)
Built 1910
Stone arch bridge over Napa River Overflow on Oak Knoll Avenue
Open to traffic

Oak Park Blvd Overpass (San Luis Obispo County, California)
Built 1956; Replaced 1993
Lost Slab bridge over US 101 on Oak Park Blvd
Replaced by a new bridge

Oakland Avenue Bridge (Alameda County, California)
Built 1911
Concrete arch bridge over Linda Avenue on Oakland Avenue in Piedmont
Open to traffic

Oaklawn Avenue Overpass (Los Angeles County, California)
Built 1910 (NRHP says 1906)
Concrete closed spandrel arch bridge over Metro Rail (frmr ATSF) on Oaklawn Ave. in South Pasadena
Open to pedestrians

Oakville Crossroad Bridge (Napa County, California)
Built 1922
Concrete tee beam bridge over Napa River on Oakville Cross Road
Open to traffic

Odd Fellows Park Road (Sonoma County, California)
Built 1977; rehabilitated 2008
Steel stringer bridge over Russian River on Odd Fellows Park Road
Open to traffic

Ohman Creek Bridge (Humboldt County, California)
Built 1939
Concrete tee beam bridge over Ohman Creek on State Route 254
Open to traffic

Old Albion River Bridge (Mendocino County, California)
Abandoned bridge over Albion River
Derelict/abandoned

Old Basso Bridge (Stanislaus County, California)
Built 1911 converted to pedestrian use in 1987
Pennsylvania through truss bridge over Tuolumne River on old Hwy 132
Open to pedestrians

Old Bear River Bridge (Placer County, California)
Open-spandrel arch bridge over Bear River on Old Grass Valley Road
Open to pedestrians only

Old Bridge (Yolo County, California)
Built 1919
Open-spandrel arch bridge over Putah Creek
Open to pedestrians only

Old CA 166 Alamo Creek Bridge (San Luis Obispo County, California)
Bypassed 1959
Warren pony truss with all verticals bridge over Alamo Creek on CA 166 Old Alignment
Intact but closed to all traffic

Old Camp Nine Bridge (Calaveras County, California)
Built 1907; Removed 2008
Lost Warren pony truss bridge over Stanislaus River on Old Camp 9 Road
Removed

Old Camp Nine Footbridge (Calaveras County, California)
Plausibly built 1890-1930
Abandoned Pratt through truss bridge over Stanislaus River on Camp Nine Footpath
Abandoned with no deck

Old Caspar Creek Road Bridge (Mendocino County, California)
Lost Bridge over Caspar Creek on Highway 1
Replaced by a new bridge

Old Cazadero Road Bridge (Sonoma County, California)
Built 1940
Bailey Bridge truss bridge over Austin Creek on Old Cazadero Road
Open to traffic

Old Coast Highway Bridge North (Monterey County, California)
Built 1950
Bailey truss bridge over North Fork Little Sur River on Old Coast Highway
Open to traffic

Old Coast Highway Bridge South (Monterey County, California)
Built 1950
Bailey truss bridge over South Fork Little Sur River on Old Coast Highway
Open to traffic

Old Deschutes Road Bridge (Shasta County, California)
Pier encased in concrete 1925; Converted to road use 1944 ; Replaced 1970
Lost Pratt through truss bridge over Sacramento River on Deschutes Road
Replaced by a new bridge

Old Dublin Road Bridge (Alameda County, California)
Built 1927
Concrete arch bridge over San Lorenzo Creek on Old Dublin Road in Castro Valley
Open to traffic

Old Duncan Grade Road Bridge (Sonoma County, California)
Built 1924
Pratt through truss bridge over Austin Creek on Old Duncans Grd Road
Intact but closed to all traffic

Old Elkhorn Ave Bridge (Fresno County, California)
Built 1916;
Concrete pony arch bridge over Fresno Slough on an old alignment of Elkhorn Ave
Open to pedestrians only

Old Happy Isles Bridge (Mariposa County, California)
Built 1921, Removed 2001
Concrete deck girder bridge over Merced River on Park Path
Removed but not replaced

Old Highway 395 Bridge (San Diego County, California)
Built in 1949, abandoned in 1967, later used as a bike path
Open-spandrel arch bridge over Penasquitos Creek on Bike path (formerly US 395)
Open to pedestrians only

Old Highway 41 Bridge (San Luis Obispo County, California)
Lost Pony truss bridge over Salinas River on State Highway 41
Destroyed by flooding

Old Hwy 50 Bridge (El Dorado County, California)
Built during same construction period as original Riverton Bridge nearby.
Abandoned stone arch bridge over Unnamed tributary South Fork American River on Old Hwy 50
Abandoned

Old Hwy 58 Salinas River Bridge (San Luis Obispo County, California)
Built 1914
Parker through truss bridge over Salinas River on Old Highway 58
Open to bicycles and pedestrians only

Old Jenny Lind Bridge (Calaveras County, California)
Pratt through truss bridge over Calaveras River on Old Milton Road
Open to pedestrian traffic on privately owned land

Old La Grange Road Bridge (Stanislaus County, California)
Converted to pedestrian use in 1989
Through truss bridge over Stanislaus River
Open to pedestrians

Old Mattole Road Bridge (Humboldt County, California)
Built 1926
Pratt half-through truss bridge over McNutt Creek on Old Mattole Road
Open to traffic

Old McCourtney Road Bridge (Placer County, California)
Built 1930, bypassed by new alignment ca.1998
Pony truss bridge over Coon Creek on McCourtney Road
Bypassed by new alignment

Old McCourtney Road Bridge (Placer County, California)
Warren pony truss bridge over Coon Creek on Old McCourtney Road
Intact but closed to all traffic

Old Mt. Aukum Road Bridge (El Dorado County, California)
Built 1924
Concrete arch bridge over Mid Fork Cosumnes River on Mira Pardis Drive
Open to traffic

Old Parrots Ferry Bridge (Tuolumne County, California)
Built 1937, flooded 1980.
Luten arch bridge over Stanislaus River on Old Parrots Ferry Road
Inundated

Old Pope Canyon Road Bridge (Napa County, California)
Built 1969, Pope Canyon Road realigned 1986, bridge kept open on what is now BLM dead-end residential street.
Arch bridge over Pope Creek on Old Pope Canyon Road
Open to traffic

Old River Bridge (San Joaquin County, California)
Built 1915; rehabilitated 1978
Swing bridge over Old River on CA 4 in Discovery Bay
Open to traffic

Old Road Castaic Creek Bridge (Los Angeles County, California)
Built 1931
Concrete bridge over Castaic Creek on The Old Road
Open to traffic

Old Road Santa Clara River Bridge (Los Angeles County, California)
Built 1928
Steel stringer bridge over Santa Clara River on The Old Road in Santa Clarita
Open to traffic

Old Route 66 Brush Creek Bridge (San Bernardino County, California)
Built 1930
Slab bridge over Brush Creek on Cajon Blvd
Open to traffic

Old Route 66 Workman Wash Bridge (San Bernardino County, California)
Built 1890
Stone arch bridge over Workman Wash on Nat Trails Hwy
Open to traffic

Old Salmon Falls Bridge (El Dorado County, California)
Built 1925, Submerged 1955-6
Abandoned concrete through girder bridge over South Fork American River on Old Salmon Falls Road
Inundated

Old Smith Point Bridge (Humboldt County, California)
Built 1934
Deck girder bridge over South Fork Eel River on Benbow Drive
Open to traffic

Old Soda Canyon Bridge (Napa County, California)
Built 1913
Stone arch bridge over Soda Canyon Creek, Pedestrian only
Open to pedestrians

Old Sonoma Road Bridge (Napa County, California)
Built 1896; rehabilitated 1914
Stone arch bridge over Carneros Creek on Old Sonoma Road in Napa
Open to traffic

Old Strawberry Road Bridge (Tuolumne County, California)
Built 1910
Concrete arch bridge over South Fork Stanislaus River on Old Strawberry Road
Open to traffic

Old Toll Road Bridge (Mendocino County, California)
Built 1969
Steel stringer bridge over Mc Dowell Creek on Old Toll Rd Cr 108
Open to traffic

Old Topanga Road Bridge (Los Angeles County, California)
Built 1927; rehabilitated 1960
Wooden bridge over Old Topanga Creek on Old Topanga Road in Los Angeles
Open to traffic

Old Trails Arch Bridge (San Bernardino County, California)
Completed Feb. 20, 1916; traffic diverted May 21, 1947; bridge converted to carry natural gas pipeline
Steel arch bridge over Colorado River carrying a pipeline (formerly carried US 66)
Open to authorized vehicles only

Old Trails Suspension Bridge #1 (San Bernardino County, California)
Pipeline suspension bridge over Colorado River on Natural Gas Pipeline
Restricted pipeline access only

Old Trails Suspension Bridge #2 (San Bernardino County, California)
Pipeline suspension bridge over Colorado River on Natural Case Pipeline
Restricted pipeline access only

Old US 101 Arroyo Hondo Bridge (Santa Barbara County, California)
Carried the coast Highway until early 1980's when it was closed to road traffic
Open-spandrel arch bridge over Arroyo Honda Creek on US 101
Open to pedestrians

Old US 50 Bridge (El Dorado County, California)
Built 1938
Haunched concrete deck girder bridge over Weber Creek on Pedestrain Path (Old SR50)
Open to pedestrians only

Old Yankee Jims Bridge (Placer County, California)
Built 1884 on the Yankee Jims toll road, collapsed August 1930 and replaced with Yankee Jims Suspension Bridge
Lost Howe deck truss bridge over North Fork American River on Yankee Jims Wagon Road
Collapsed and replaced

Olinda Creek Bridge (Shasta County, California)
Abandoned concrete pony/through girder bridge over Former Olinda Creek Streambed on Old Olinda Road Alignment in Anderson
Abandoned

Olympic Boulevard Bridge/9th Street Viaduct (1925) (Los Angeles County, California)
Built 1925
Concrete arch bridge over Los Angeles River and railroad tracks on Olympic Boulevard in Los Angeles
Open to traffic

Orange & Hill Viaduct (Los Angeles County, California)
Built 1932
Steel stringer bridge over Orange Ave Oh (Sptco) on Orange Ave & Hill S in Long Beach
Open to traffic

Orange Blossom Trail - Zanja Bridge (San Bernardino County, California)
Built 1902; Converted ca. 2012
Pratt through truss bridge over The Mission Zanja on Orange Blossom Trail
Open to pedestrians only

Orangevale Avenue Bridge (Sacramento County, California)
Built 1915
Concrete open spandral arch bridge over Gold Creek on Orangevale Avenue in Folsom
Bridge is now open

Ord Ferry (Butte County, California)
Lost Ferry across Sacramento River on Ord Ferry Rd
Replaced by a new bridge

Oregon City Covered Bridge 05-04-B (Butte County, California)
Built 1983 by Clay Castleberry
Modern covered bridge over Oregon Gulch Creek on Oregon Gulch Road at Oregon City
Open to traffic

Oregon Creek Covered Bridge 05-58-01 (Yuba County, California)
Built 1860 by Thomas Freeman, closed 2010, rehabilitated and reopened 2017
Covered bridge over Oregon Creek on Alleghany Ridge Road at Oregon Creek Campground
Open to light traffic

Orland Hambright Creek Bridge (Glenn County, California)
Built 1936
Concrete deck girder bridge over Hambright Creek on Former US 99 West
Open to traffic

Orleans Bridge (Humboldt County, California)
Built 1966
Suspension bridge over Klamath River on CA 96
Open to traffic

Orleans Bridge (1912) (Humboldt County, California)
Built in 1912, destroyed in 1936 (some accounts say by fire in 1921 or 1926)
Lost Wire suspension bridge over Klamath River on SH 96
Replaced by a new bridge

Orleans Bridge (1940) (Humboldt County, California)
Built in 1940, destroyed by flood in 1964
Lost Wire suspension bridge over Klamath River on SH 96
Replaced by a new bridge

Orr Springs Road Bridge (Mendocino County, California)
Built 1955
Steel stringer bridge over South Fork Big River on Orr Springs Road
Open to traffic

Osborn Road Bridge (Tehama County, California)
Built 1960; rehabilitated 1984
Pratt Pony truss bridge over Mill Creek on Osborn Road
Open to traffic

P&SVRR - Deer Creek Bridge (El Dorado County, California)
Built 1970's to replace a similar bridge built in 1864, still in use on a preserved railroad.
Deck plate girder bridge over Deer Creek on Placerville & Sacramento Valley Railroad (P&SVRR)
Open to traffic

P&SVRR - Hangtown Creek Bridge (El Dorado County, California)
Built 1906
Concrete pony arch bridge over Hangtown Creek on Placerville and Sacramento Valley Railroad (P&SVRR)
Intact but closed to all traffic

P&SVRR - Latrobe Creek Bridge (El Dorado County, California)
Built 1863-1864, still in use on a preserved railroad.
Timber stringer bridge over Latrobe Creek on Placerville & Sacramento Valley Railroad (P&SVRR)
Open to traffic

Pacheco Creek Bridge (Santa Clara County, California)
Built 1915, Replaced 1986
Lost Pratt through truss bridge over Pacheco Creek on San Felipe Road
Replaced by new bridge

Pacific Avenue Bridge (Los Angeles County, California)
Bridge over Ballona Creek on Pacific Avenue
Open to pedestrians

Pacific Coast Highway Anaheim Bay Bridge (Old) (Orange County, California)
Built 1933; replaced 1967
Lost bridge over Anaheim Bay on CA 1 (Pacific Coast Highway)
No longer exists

Pacific Coast Highway Ballona Creek Bridge (Los Angeles County, California)
Built 1937
Haunched Steel stringer bridge over Ballona Creek on Lincoln Blvd. (State Route 1) in Los Angeles
Open to traffic

Pacific Coast Highway Las Flores Creek Bridge (Los Angeles County, California)
Built 1926; rehabilitated 1931
Concrete tee beam bridge over Las Flores Creek on Pacific Coast Highway (CA 1) in Malibu
Open to traffic

Pacific Coast Highway Overpass (Los Angeles County, California)
Deck plate deck girder Bridge over Lincoln Blvd. (Pacific Coast Highway / State Route 1 (CA 1) on Culver Blvd in Los Angeles
Open to Traffic