There are 2,629 bridges in this category · Only showing 1,821 bridges with photos
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California

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Scott Mt. Road Bridge (Siskiyou County, California)
Built 1914
Warren Pony truss bridge over East Fork Scott River on Scott Mt Road
Open to traffic

Scoville Bridge (Los Angeles County, California)
Built 1887 ;Replaced 1913
Lost Howe through truss bridge over Arroyo Seco on Colorado Boulevard
Destroyed by flooding

SD&A - Campo Creek Viaduct (San Diego County, California)
Built 1916
Deck plate girder bridge over Campo Creek on San Diego & Arizona Railway
Open to traffic

SDAE - Campo Road Bridge (San Diego County, California)
Built 1917
Deck plate girder bridge over State Route 94- Campo Road on SD&AE RR
Open to traffic

SDERy - Kensington Park Viaduct (San Diego County, California)
Built ca. 1910
Lost Timber stringer bridge over Ward Canyon on San Diego Electric Railroad
Replaced by a new bridge

SDERy - Point Loma Highway Viaduct (San Diego County, California)
Built 1925
Lost Pony/through plate girder bridge over Point Loma Highway & Atchison, Topeka & Santa Fe Railway on San Diego Electric Railroad
Removed

SDIY - Goat Canyon Trestle (San Diego County, California)
Timber stringer bridge over Goat Canyon on Pacific Imperial Railroad (PIR)
Open to traffic

Sears Point Toll Bridge (Sonoma County, California)
Lost Bridge over Tolay Creek on State Route 37 Sears Point Road
No longer exists

Seminary Street Bridge (Napa County, California)
Built 1904; rehabilitated 1933
Stone arch bridge over Napa Creek on Seminary Street in Napa
Open to traffic

Sentinel Bridge (Mariposa County, California)
Built 1918-19, Widened 1960, Replaced 1994
Lost Concrete deck girder bridge over Merced River on Sentinel Drive
Replaced by new bridge

Sepulveda Boulevard Tunnel (Los Angeles County, California)
Tunnel on N Sepulveda Blvd under hillside and Mulholland Drive
Open to traffic

SERA - Tule Canal Bridge (Yolo County, California)
Built 1911; Deck plate girder added in the 1930s.
Deck plate girder bridge over Tule Canal on Sierra Northern Railway
Open to traffic

Seventh Street Bridge (1916) (Stanislaus County, California)
Built 1916
Deck truss bridge over Tuolumne River on Seventh Street
Open to traffic

Seventh Street Bridge (Old) (Stanislaus County, California)
Lost Pennsylvania through truss bridge over Tuolumne River on Seventh Street
Replaced in 1916 by Lion Bridge

SF Muni - Sunset Tunnel (San Francisco County, California)
Built 1928
Tunnel under Buena Vista Park on SF Muni
Open to traffic

SF Muni - Twin Peaks Tunnel (San Francisco County, California)
Built 1918
Tunnel on San Francisco Municipal Railway
Open to traffic

SF&NP - San Rafael Bay/Creek Bridge (Marin County, California)
Built in 1878
Lost Bridge over San Rafael Bay on San Francisco & Northern Pacific RR
No longer exists

SF&NV - Steamboat Slough Swing Bridge (Sonoma County, California)
Built 1905 by the San Francisco and Napa Valley RR (later Southern Pacific), abandoned 1933, destroyed by fire in mid 1950s
Lost Through truss bridge over Steamboat Slough on San Francisco and Napa Railroad/Southern Pacific Railroad
Destroyed by fire

Shady Lane Bridge (Marin County, California)
Built 1930
Concrete bridge over Ross Creek on Shady Lane in Ross
Open to traffic

Shaffer Bridge (Merced County, California)
Built 1912; bypassed 2003
Pratt through truss bridge over Merced River on old alignment of Oakdale Road
Exist next to new bridge as a pedestrian only bridge

Shafter Bridge (1924) (Marin County, California)
Built 1924, Replaced 1982
Lost Open-spandrel arch bridge over Lagunitas Creek on Sir Francis Drake Blvd
Replaced by new bridge

Shafter Bridge (Old) (Marin County, California)
Built ?; Replaced 1924
Lost Pratt through truss bridge over Lagunitas Creek on Olema-to-San Rafael Stage Road
Replaced by a new bridge

Shasta River Bridge (Siskiyou County, California)
Built 1931
Concrete arch bridge over Shasta River on CA 263
Open to traffic

Shasta River Bridge (Siskiyou County, California)
Built 1928
Concrete tee beam bridge over Shasta River on State Route 263
Open to traffic

Shelly Bridge (Siskiyou County, California)
Built 1899, Closed to Traffic 1982
Through truss bridge over Shasta River on Anderson Grade Road
Closed to all traffic

Sheperds Bridge (Imperial County, California)
Lost Open-spandrel arch bridge over Myer Creek on US 80
Destroyed by severe weather- Hurricane Kathleen 1976

Sherwood Blvd. Bridge (Tehama County, California)
Built 1940; rehabilitated 1958
Pony truss bridge over Mill Creek on Sherwood Blvd. in Los Molinos
Open to traffic

Shirttail Canyon Bridge (Placer County, California)
Built 1940
Deck plate girder bridge over Shirttail Creek on Shirttail Canyon Road
Open to traffic

Shoofly Bridge (Plumas County, California)
Built 1889; Abandoned 1983; Failed relocation 1986
Abandoned Pratt through truss bridge over Indian Creek on Road
Derelict/abandoned

Sierra Blvd. Bridge (Placer County, California)
Built 1929
Rainbow arch bridge over Union Pacific Railroad on Sierra Blvd. in Roseville
Open to traffic

Sierra Highway Overpass (Los Angeles County, California)
Built 1911; rehabilitated 1934
Concrete tee beam bridge over Metrolink & Up Rr on Sierra Hwy in Los Angeles
Open to traffic

Sierra Railway - Stanislaus River Bridge (Calaveras County, California)
Line completed 1902; Line closed 1936
Lost Pratt deck truss bridge over Stanislaus River on Sierra Railway
Removed

Silver Fork American River Bridge (El Dorado County, California)
Built 1969
Lost Beam bridge over Silver Fork American River on Silver Fork Road Route 11N40
Replaced by a new bridge

Silverado Trail Bridge (Napa County, California)
Built 1901, rehabilitated unknown year, builders stone appears newer then 1901
Stone arch bridge over Unnamed creek flows into Napa River on Silverado Trail
Open to traffic

Silvertip Springs Road Bridge (Plumas County, California)
Bridge over South Fork of Feather River
Open to traffic

Simpson Bridge (Glenn County, California)
Built 1883
Lost Pratt through truss bridge over Stony Creek on Newville Road
Lost

Sir Francis Drake Bridge (Marin County, California)
Built 1926
Concrete arch bridge over Corte Madera Creek on Sir Francis Drake Road in Ross
Open to traffic

Sites Lodoga Road Bridge (Colusa County, California)
Unknown construction date, bypassed in 1971.
Abandoned Queenpost pony truss bridge over Grapevine Creek on Old Sites Lodoga Road
Abandoned

Sixth Street Bridge (San Francisco County, California)
Built in 1891, Removed in 1965
Lost Pratt through truss bridge over Mission Creek (China Basin) on Sixth Street
No longer exists

SJVR - Kings River Bridge (Fresno County, California)
Warren Deck truss bridge over Kings River on San Joaquin Valley RR
Open to traffic

Slate Creek Bridge (Shasta County, California)
Built 1927
Concrete tee beam bridge over Slate Creek on La Moine Road (Old U.S. 99) in La Moine
Open to traffic

Slate Creek Road Bridge (Shasta County, California)
Built 1920
Concrete arch bridge over Slate Creek on Slate Creek Road
Open to traffic

Slate Gulch Bridge (Mariposa County, California)
Built 1926
Concrete arch bridge over Slate Gulch on CA 140
Open to traffic

Slo-San Simeon Road Bridge (San Luis Obispo County, California)
Built 1906; rehabilitated 1938
Concrete arch bridge over Harmony Creek on Slo-San Simeon Road
Open to traffic

Sloat Poplar Valley Road Bridge (Plumas County, California)
Built 1959, replaced unknown year.
Deck plate girder bridge over Middle Fork Feather River on Sloat-Poplar Valley Road
Replaced by Bailey truss bridge

Slough S6 Bridge (Yolo County, California)
Built 1930; rehabilitated 2003
Concrete arch bridge over Slough S6 on CR 19
Open to traffic

Small Concrete Spenceville Road Bridge (Yuba County, California)
Built 1920.
Concrete stringer bridge over Tributary of Dry Creek on Spenceville Road
Open to traffic

Small Concrete Spenceville Road Pedestrian Bridge (Nevada County, California)
Built 1920, converted to pedestrian use unknown year.
Concrete stringer bridge over Little Dry Creek on Spenceville Road
Open to pedestrians as part of trail. May be crossed by authorized vehicles.

Small Wooden Spenceville Road Bridge (Nevada County, California)
Built 1920.
Timber stringer bridge over Tributary of Dry Creek on Spenceville Road
Open to traffic

SMART - Cal Park Hill Tunnel (Marin County, California)
Built 1884, closed 1978 , opened to pedestrains 2010.
Tunnel on Pedestrian Pathway/SMART
Open to pedestrians, commuter rail traffic planned

SMART - Haystack's Landing Bridge (New) (Sonoma County, California)
Built 2015 using relocated 1987 spans from Galveston, Texas.
Warren through truss bridge over Petaluma River on Sonoma-Marin Area Rail Transit
Open to traffic

SMART - Puerto Suello Tunnel (Marin County, California)
Built 1879; Roof collapsed during a fire 1961, rebuilt 1967, Closed in the 80s, Rehabilitated 2014-16
Tunnel on Sonoma-Marin Area Rail Transit
Open to traffic

Smith Point Bridge (Humboldt County, California)
Built 1980
Beam bridge over South Fork Eel River on US HIGHWAY 101
Open to traffic

Smith River Bridge (Old) (Del Norte County, California)
Lost Through truss bridge over Smith River on US 101
Replaced by a new bridge

SN - Broadway Terrace Overpass (Alameda County, California)
Built 1936; Removed 1957
Lost Pony/through plate girder bridge over Broadway Terrace on Sacramento Northern Railway
Removed

SN - Chabot Road Overpass (Alameda County, California)
Built ?; Removed 1957
Lost Deck plate girder bridge over Chabot Road on Sacramento Northern Railway
Removed

SN - East Finger Lake Temescal Bridge (Alameda County, California)
Built 1913; Removed ca. 1936
Lost Deck plate girder bridge over East Finger Lake Temescal on Sacramento Northern Railway
Removed and the finger filled

SN - Feather River Bridge (Butte County, California)
Lost Pratt through truss bridge over Feather River on Sacramento Northern Railway
Removed

SN - Florence Avenue Trestle (Alameda County, California)
Built ?; Removed 1957
Lost Timber stringer bridge over Abandoned section of Florence Avenue on Sacramento Northern Railway
Removed

SN - Montezuma River Bridge (Solano County, California)
Built 1912
Lost Pennsylvania through truss bridge over Montezuma River on Sacramento Northern Railway
No longer exists

SN - Redwood Peak Tunnel (Alameda County, California)
Built 1911, closed & sealed 1957; Caved-in 1982
Abandoned tunnel through Shepherd/Redwood Canyon on Sacramento Northern Railway
Abandoned

SN - Suisun Bay Ferry "Ramon" (Contra Costa County, California)
Built 1915; Operations ceased 1954
Lost Ferry across Suisun Bay on Sacramento Northern
No Longer In Operation

SN - Thornhill Drive Overpass (Alameda County, California)
Built ?; Deck plate girder added ca 1930; Removed in 1957
Lost Deck plate girder bridge over Thornhill Drive on Sacramento Northern Railway
Removed

SN - Winchester Lake Bridge (Yolo County, California)
Built 1927
Lost Bridge over Winchester Lake/Tule Slough on Sacramento Northern Railway
No longer exists

Snake Ravine Bridge (Stanislaus County, California)
Built 1918
Concrete arch bridge over Snake Ravine on CA 132
Open to traffic

Soda Canyon driveway (Napa County, California)
Kingpost pony truss bridge over Soda Creek on Private Drive
Open to traffic

Soda Creek Bridge (Napa County, California)
Built 1910; rehabilitated 1955
Stone arch bridge over Soda Creek on CA 128
Open to traffic

Soda Creek Road Bridge (Shasta County, California)
Built 1960
Bailey pony truss bridge over South Fork Soda Creek on Soda Creek Road
Open to traffic

Soda Creek Road Bridge (Shasta County, California)
Built 1930
Pratt pony truss bridge over Soda Creek on Soda Creek Road
Open to traffic

Soda Springs Road Bridge (Placer County, California)
Built 1900
Warren pony truss bridge over North Fork American River on Soda Springs Road
Open to traffic

Soeth Road Bridge (Glenn County, California)
Built 1900
Pratt Through truss bridge over Stony Creek on Soeth Road
Open to traffic

Solano Avenue Tunnel (Alameda County, California)
Built 1930
Tunnel under under Marin Avenue on Solano Avenue
Open to traffic

Soledad Canyon Road Overpass (Los Angeles County, California)
Built 1938
Arch bridge over UP Railroad on Soledad Canyon Road
Open to traffic

Soledad Canyon Road Santa Clara River Bridge (Mill Canyon) (Los Angeles County, California)
Built 1952
Steel stringer bridge over Santa Clara River on Soledad Cyn Road
Open to traffic

Soledad Canyon Road Santa Clara River Bridge (Mill Canyon) (Los Angeles County, California)
Bridge over Santa Clara River on Soledad Canyon Road
Open to traffic

Soledad Canyon Tunnel (Los Angeles County, California)
Built 1935
Tunnel on Soledad Canyon Road
Open to traffic

Sonoma Raceway "The Chute" (Sonoma County, California)
Built 1998
Corrugated multi-plate arch bridge over Infield on Sonoma Raceway "The Chute"
Open to authorized vehicles only

Soquel Avenue Covered Bridge 05-44-05x (Santa Cruz County, California)
Covered bridge built 1874, replaced by first concrete bridge 1921
Lost Covered Through truss bridge over San Lorenzo River on Soquel Avenue
Replaced by new bridge

Soquel Creek Bridge (Santa Cruz County, California)
Built 1947; rehabilitated 1995
Concrete arch bridge over Soquel Creek, Wharf Road on CA 1 in Capitola
Open to traffic

Soquel Drive Bridge (Santa Cruz County, California)
Built 1928
Concrete arch bridge over Aptos Creek on Soquel Drive in Aptos
Open to traffic

Soscal Avenue Bridge (Napa County, California)
Built 1980
Beam bridge over Napa River on Soscol Avenue in Napa
Open to traffic

Soscal Avenue Napa River Bypass (Napa County, California)
Built 2004, bypass not excavated as of 2009.
Beam bridge over Napa River Bypass on Soscol Avenue in Napa
Open to traffic

Soto Street Bridge (Los Angeles County, California)
Built 1928; rehabilitated 1987, seismic refit, 1996
Open spandrel Concrete arch bridge over Los Angeles River on Soto Street in Vernon
Open to traffic

Soto Street Mission Road Viaduct (Los Angeles County, California)
Built 1936
Plate girder bridge over Mission Road/Huntington Drive on Soto Street in Los Angeles
Open to traffic

Soto Street Valley Boulevard Viaduct (Los Angeles County, California)
Built 1936
Steel stringer bridge over Valley Blvd/Sptco on Soto Street in Los Angeles
Open to traffic

South - Marsh Street at San Luis Obispo Creek (San Luis Obispo County, California)
Built 1948
Steel stringer bridge over San Luis Obispo Creek on Marsh Street
Open to traffic

South Avenue Bridge (Amador County, California)
Built 1925
Steel stringer bridge over South Fork Jackson Creek on South Avenue
Open to traffic

South Branch Sand Creek Bridge (Colusa County, California)
Built 1930
Wooden bridge over South Branch Sand Creek on Ohm Road
Open to local farm traffic only

South Fork American River Footbridge (El Dorado County, California)
Built 1918; Demolished 1957
Lost Bridge over South Fork American River on Pedestrian Pathway
Demolished

South Fork Eel River Bridge (Mendocino County, California)
Built 1917; rehabilitated 1934
Through truss bridge over South Fork Eel River on CA 271 (formerly US 101)
Open to traffic

South Fork Eel River Bridge (Mendocino County, California)
Built 1944
Through truss bridge over South Fork Eel River on CA 1
Open to traffic

South Fork Gualala River Bridge (Sonoma County, California)
Current bridge installed 1984, likely multiple previous bridges at this location
Lost Pratt deck truss bridge over South Fork Gualala River on Stewart's Point Skagg Springs Road
Replaced by new bridge

South Fork Kaweah River Bridge (Tulare County, California)
Built 1952
Pony truss bridge over South Fork Kaweah River on M348
Open to traffic

South Fork Kaweah River Bridge (Tulare County, California)
Built 1959
Pony truss bridge over South Fork Kaweah River on South Fork Drive in Three Rivers
Open to traffic

South Fork of the Trinity River Bridge (Trinity County, California)
This bridge was built on the wagon road that connected Eureka to Redding and is now known as California State Route 299.
Wire suspension bridge over South Fork of the Trinity River on Redding-Eureka Wagon Road
Demolished in 1929

South Fork Trinity River Bridge (1929) (Humboldt County, California)
Built 1929, Replaced 1988
Lost Deck truss bridge over South Fork Trinity River on State Route 299 in Salyer
Replaced by new bridge

South Fork Tuolumne River Bridge (Tuolumne County, California)
Built 1937
Steel stringer bridge over South Fork Tuolumne River on Tioga Road
Open to traffic

South Fork Willow Slough Bridge (Yolo County, California)
Built 1930
Concrete slab bridge over South Fork Willow Slough on CR 25
Open to traffic

South Higuera Street Bridge (San Luis Obispo County, California)
Built 1928
Concrete tee beam bridge over San Luis Obispo Creek on Higuera Street
Open to traffic

South Honcut Creek Bridge (Yuba County, California)
Built 1914, replaced 2012
Concrete bridge over South Honcut Creek on Honcut Road in Loma Rica
Replaced by a new bridge