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

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Lower Gas Point Road Bridge (Shasta County, California)
Built 1920
Through truss bridge over North Fork Cottonwood Creek on Lower Gas Point Road
Open to traffic

Lowrey Road Bridge (Tehama County, California)
Built 1942
Warren Pony truss bridge over North Fork Elder Creek on Lowrey Road
Open to traffic

Lowrey Road Bridge (Tehama County, California)
Built 1942
Warren Pony truss bridge over South Fork Elder Creek on Lowrey Road
Open to traffic

Lowrey Road Bridge (Tehama County, California)
Built 1942
Warren Pony truss bridge over Middle Fork Elder Creek on Lowrey Road
Open to traffic

Lumpkin-Laporte Road Bridge (Butte County, California)
Built 1930
Pony truss bridge over Fall River on Lumpkin-Laporte Road
Replaced by a new bridge

Lumsden Bridge (Tuolumne County, California)
Warren pony truss with all verticals bridge over S. Fork Toulumne River on Lumsden Rd
Open to traffic

Lusardi Creek Bridge (San Diego County, California)
Built 1941. The dirt portion of Black Mountain Road was closed to vehicular traffic around 2004 and is now a popular walking and biking trail
Timber stringer bridge over Lusardi Creek on Black Mountain Road
Open to pedestrians only

M Street Bridge (1911) (Sacramento County, California)
Built 1911, Replaced 1934
Lost through truss swing bridge over Sacramento River on M Street
Replaced by a new bridge

M Street Bridge (Temporary) (Sacramento County, California)
Built 1934 as temporary shoofly for Tower Bridge construction
Lost Pennsylvania through truss bridge over Sacramento River on M Street
Replaced by a new bridge

Maacama Creek Bridge (Sonoma County, California)
Built 1931, rehabilitated, unknown year
Concrete arched beam bridge over Maacama Creek on State Route 128
Replaced by a new bridge

MacArthur Bridge (Los Angeles County, California)
Closed-spandrel arch bridge over a path in MacArthur Park on Wilshire Boulevard
Open to traffic

MacKerricher Log Bridge (Mendocino County, California)
Built in 1916 as logging railroad, converted in 1949 to log truck road, closed to commercial traffic in 1970's.
Timber stringer bridge over MacKerricher State Park Road on abandoned section of Mackerricher State Park Rd
Open to pedestrians

Macy Street Bridge (Old) (Los Angeles County, California)
Built 1904; Replaced 1926
Lost Howe through truss bridge over Los Angeles River on Macy Street
Replaced by a new bridge

Mad River Bridge (Humboldt County, California)
Built 1929; rehabilitated 1959; Replaced & demolished 2011
Lost Warren through truss bridge over Mad River on US 101 in McKinleyville


Main Street Bridge (Calaveras County, California)
Built 1909
Concrete arch bridge over Angels Creek on Main Street in Murphys
Open to traffic

Main Street Bridge (Napa County, California)
Built 1860; rehabilitated 1985
Stone arch bridge over Napa Creek on Main Street in Napa
Open to traffic

Main Street Bridge (San Joaquin County, California)
Built 1903; Replaced 1927
Lost Through truss bridge over Mormon Slough on Main Street w Southern Pacific RR
Replaced by a new bridge

Main Street Bridge (Calaveras County, California)
Built 1915
Concrete tee beam bridge over Branch of Coyote Creek on Main Street in Vallecito
Open to traffic

Main Street Bridge (Santa Clara County, California)
Built 1906
Lost Closed-spandrel arch bridge over Los Gatos Creek on Main Street
Replaced by a new bridge

Main Street Overpass (Los Angeles County, California)
Built 1926
Concrete open spandrel arch bridge over ROUTE 1 on Main Street in Santa Monica
Open to traffic

Malibu Canyon Road Tunnel (Los Angeles County, California)
Tunnel under Hillside on Malibu Canyon Road
Open to traffic

Malpaso Creek Bridge (Monterey County, California)
Built 1935
Concrete arch bridge over Malpaso Creek on CA 1
Open to traffic

Manthey Road Bridge (San Joaquin County, California)
Built 1926
Parker through truss bridge over San Joaquin River on Manthey Road in Lathrop
Open to traffic

Manton Road Bridge (Tehama County, California)
Built 1935
Pratt Pony truss bridge over Digger Creek on Manton Road in Manton
Open to traffic

Manzanita Avenue Bridge (Butte County, California)
Bridge over Big Chico Creek on Manzanita Avenue
Open to traffic

Maple Creek Bridge (Humboldt County, California)
Built 1929
Concrete arch bridge over Maple Creek on Butler Valley Road
Open to traffic

Maple Creek Road Bridge (Humboldt County, California)
Built 1923
Concrete arch bridge over Boulder Creek on Maple Creek Road
Open to traffic

Mare Island Bridge (1919) (Solano County, California)
Built 1919; Replaced 1935
Lost Bridge over Napa River on Road
Replaced by a new bridge

Mare Island Bridge (1935) (Solano County, California)
Built 1935; replaced 1980
Lost Deck plate girder bridge over Mare Island Strait on Mare Island Shipyard RD w RR
Replaced by a new bridge

Mare Island Bridge (1980) (Solano County, California)
Built 1980
Bridge over Napa River on G Street
Open to traffic

Marengo-Soto Street Viaduct (Los Angeles County, California)
Built 1936; Replaced 1972
Beam bridge over I10,Conn,Rmp,Buswy,Metro on Soto-Marengo Street in Los Angeles
Open to traffic

Mariposa Equestrian Suspension Bridge (Los Angeles County, California)
Built 1939
Wire suspension bridge over Los Angeles River on Equestrian Pathway
Open to pedestrians only

Marsh Street Bridge (San Luis Obispo County, California)
Built 1909
Concrete tee beam bridge over San Luis Obispo Creek on Marsh Street
Open to traffic

Martins Ferry Bridge (Humboldt County, California)
Built 1959; rehabilitated 1965, emergency repairs 2008.
Deck truss bridge over Klamath River on Bald Hills Road
Open to traffic

Matilija Road Bridge (Ventura County, California)
Built 1940
Concrete arch bridge over North Fork Matilija Creek on South Matilija Road
Open to traffic

Mattole Road Bridge (Humboldt County, California)
Built 1958
Deck truss bridge over Mattole River on Mattole Road
Open to traffic

Mattole Road Bridge (Humboldt County, California)
Built 1935
Concrete arch bridge over Mattole River on Mattole Road
Open to traffic

Maxwell Creek Bridge (Napa County, California)
Stone arch, unknown date, rehabilitated, widened, unknown date
Stone arch bridge over Maxwell Creek on Chiles Valley Road
Open to traffic

Maybert Road Bridge (Nevada County, California)
Built 1895; replaced 2017
Pratt Pony truss bridge over Canyon Creek on Maybert Road
In process of being relocated to Nevada City for pedestrians.

Mazourka Canyon Road Bridge (Inyo County, California)
Built 1919; rehabilitated 1947
Steel stringer bridge over Los Angeles Aqueduct on Mazourka Canyon Road
Open to traffic

McCann Ferry (Humboldt County, California)
Ferry operates every winter crossing Eel River
Ferry across Eel River, Middle Fork on McCann Road
Open to traffic

McCann Road Bridge (Humboldt County, California)
Built 1965; replacement scheduled for completion 2025
Slab bridge over Eel River on McCann Road
Open to traffic

McCarty Creek Road Bridge (Tehama County, California)
Built ca. 1890, may have been relocated here in 1937
Pin-connected Pratt Through truss bridge over McCarty Creek on McCarty Creek Road
Open to traffic

McCloud Bridge (Shasta County, California)
Tee beam bridge over McCloud River on Fenders Ferry Road
Open to traffic

McClure Tunnel (Los Angeles County, California)
Built 1935
Tunnel on I-10 in Santa Monica
Open to traffic

McCourtney Road Bridge (Placer County, California)
Built ca. 1930, replaced 1998 - 2000
Lost Pony truss bridge over Doty Creek on McCourtney Road
Demolished and replaced

McCoy Creek Bridge (Mendocino County, California)
Built 1935; rehabilitated 1957
Timber stringer bridge over Mc Coy Creek on State Route 271
Open to traffic

McCune Creek Bridge (Solano County, California)
Built 1911; rehabilitated 1951, abandoned unknown year with road re-alignement
Abandoned Concrete box bridge over McCune Creek on old Winters Road
Close to traffic

McKinney Creek Bridge (Placer County, California)
Built 1950
Timber stringer bridge over McKinney Creek on McKinney Creek Road in Homewood
Open to traffic

McNally's footbridge (Tulare County, California)
Wire suspension bridge over Kern River on pedestrian trail
Open to pedestrians only

MCR - Lake Britton Bridge (Shasta County, California)
Built 1955
Deck plate girder bridge over Lake Britton on McCloud River Railroad
Closed to traffic

Meadowbrook Park Bridge (San Bernardino County, California)
Double-intersection Warren pony truss bridge over Park Creek on Pedestrian Walkway
Intact but closed to all traffic after damage by fire.

Mears Creek Bridge (Shasta County, California)
Built 1929
Concrete tee beam bridge over Mears Creek on Mears Ridge Road (Old U.S. 99)
Open to traffic

Melita Road Bridge (Sonoma County, California)
Built 1915
Closed spandrel Concrete arch bridge over Santa Rosa Creek on Melita Road in Santa Rosa
Open to traffic

Meridian Bridge (1914) (Sutter County, California)
Built 1914; Replaced 1977
Lost Pratt through truss bridge over Sacramento River on CA 20 & Sacramento Northern Railway
Replaced by a new bridge

Meridian Bridge (1977) (Sutter County, California)
Built 1977
Cable-stayed swing bridge over Sacramento River on CA 20 at Meridian
Open to traffic

MET - Dry Creek Bridge (Stanislaus County, California)
Deck plate girder bridge over Dry Creek on Modesto and Empire Traction Co. (MET)
Open to traffic

Michigan Bar Road Bridge (Sacramento County, California)
Built 1947
Deck truss bridge over Cosumnes River on Michigan Bar Road in Rancho Murieta
Open to traffic

Middle Bar Bridge (Calaveras County, California)
Built 1912
Pratt through truss bridge over Mokelumne River on Middle Bar Road
Open to traffic

Middle Fork Smith River Bridge (Del Norte County, California)
Built 1925; rehabilitated 1972
Concrete arch bridge over Middle Fork Smith River on US 199
Open to traffic

Middle Matilija Tunnel (Ventura County, California)
Built 1931
Middle Matilija Tunnel on State Route 33
Open to traffic

Middle River Bridge (San Joaquin County, California)
Built 1915; rehabilitated 1975
Howe Through truss bridge over Middle River on CA 4
Open to traffic

Middle Yuba River Bridge (Sierra County, California)
Lost Pratt pony truss bridge over Middle Yuba River on Unnamed Dirt Road
Collapsed

Mill Crossing Bridge (Marin County, California)
Built 1947
Deck truss bridge over Lagunitas Creek on Mill Crossing
Open to traffic

Millard Creek Dam (Los Angeles County, California)
Build as part of a surface water diversion
Stone culvert bridge over MIllard Creek on North Arroyo Blvd.
Open to pedestrians

Miller-Sweeney Bridge (Alameda County, California)
Constructed 1974
Bascule over Oakland Estuary on Fruitvale Avenue
Open to traffic

Miner Slough Bridge (Solano County, California)
Built 1933; rehabilitated 1953
Swing bridge over Miner Slough on CA 84
Open to traffic

Mineral Road Bridge (San Bernardino County, California)
Built 1928
Steel through arch bridge over Mojave River on Mineral Road
Open to pedestrians only

Mineral Road Bridge (Old) (San Bernardino County, California)
Lost Through truss bridge over Mojave River and ATSF RR on Mineral Road
Replaced by a new bridge

Mission Road Arroyo Rosa de Castilla Bridge (Los Angeles County, California)
Built befor 1862
Lost Bridge over Arroyo Rosa de Castilla on Mission Road / Alhambra Road
Stream converted to storm drain

Mojave River Bridge (San Bernardino County, California)
Built ca. 1888; Converted to road ca. 1907; Replaced 1941 and relocated to Central America
Pratt through truss bridge over Mojave River on Dagget-Yermo Road
Replaced by a new bridge, relocated to Central America

Mokelumne River Bridge (San Joaquin County, California)
Built 1942; rehabilitated 1978
Swing bridge over Mokelumne River on CA 12
Open to traffic

Mono Hot Springs Bridge (Fresno County, California)
Bailey pony truss bridge over South Fork San Joaquin River on Edison Lake Road
Open to traffic

Monterey Drive Bridge (Sonoma County, California)
Closed-spandrel arch bridge over Matanzas Creek on Monterey Drive
Open to traffic

Montgomery St Bridge (Butte County, California)
Built 1939
Steel stringer bridge over UP Railroad on Montgomery Street
Open to traffic

Montgomery Woods Bridge (Mendocino County, California)
Built 1971
Steel stringer bridge over South Fork Big River on Orr Springs Road
Open to traffic

Moody Creek Bridge (Shasta County, California)
Built 1918
Concrete tee beam bridge over Moody Creek on Cascade Blvd
Open to traffic

Mormon Island Bridge (Sacramento County, California)
Built 1908; Inundated ca. 1955
Parker through truss bridge over South Fork American River on Road
Inundated

Morrison-Bryan Road Bridge (Tehama County, California)
Built 1910
Lost Warren pony truss bridge over Burris Creek on Morrison-Bryan Road
Removed but not replaced

Morrow Island Bridge (Solano County, California)
Built ?
Steel stringer bridge over Goodyear Slough on Morrow Lane
Open to traffic

Moscow Road Viaduct (Sonoma County, California)
Built 1956
Concrete stringer bridge across hillside on Moscow Road
Open to traffic

Mosquito Road Bridge (El Dorado County, California)
Built 1939
Suspension bridge over South Fork American River on Mosquito Road
Open to traffic

Mossdale Bridge (1917) (San Joaquin County, California)
Built 1917; Replaced 1926
Lost Pratt through truss bridge over San Joaquin River on Road
Replaced by a new bridge

Mossdale Bridge (1949) (San Joaquin County, California)
Built 1949;
Warren through truss bascule bridge over San Joaquin River
Open to traffic

Mount Baldy Tunnel #2 (Los Angeles County, California)
Built 1954
Tunnel under hillside on Mount Baldy Road
Open to traffic

Mount Wilson Toll Road Bridge (Los Angeles County, California)
Built by The Pasadena and Mount Wilson Toll Road Company 1891, Replaced by the Nat'l Forrest Service, Date unknown
Concrete stringer bridge over Eaton Canyon Wash on Mt. Wilson Toll Road in Angeles National Forrest
Closed to all traffic

Mountain Hawk Way Bridge (Sonoma County, California)
Built 1995
Closed spandrel Concrete arch bridge over Sky Hawk Creek on Mountain Hawk Way in Santa Rosa
Open to traffic

Mountain House Road Bridge (Sierra County, California)
Built 1936; rehabilitated 1999
Warren Pony truss bridge over North Fork Yuba River on Mountain House Road
Open to traffic

Mountain Street Bridge (Los Angeles County, California)
1936
Concrete beam bridge over Verdugo Wash on Mountain St. in Glendale, Los Angeles County, California
Open to Traffic

Mt Murphy Road Bridge (El Dorado County, California)
Through girder bridge built 1915, 2 center spans destroyed by flooding and truss installed 1931
Through truss bridge over South Fork American River on Mt Murphy Road
Open to traffic

Mt Vernon Avenue Bridge (San Bernardino County, California)
Built 1934
Steel stringer bridge over BNSF RR, Amtrak, UP RR,W 3rd St on Mt Vernon Avenue
Open to traffic but with temporary supports on the south end

Mt. Rubidoux Drive Bridge (Riverside County, California)
Built 1931
Stone arch bridge over Buena Vista Avenue on Mt. Rubidoux Drive in Riverside
Open to traffic

Mueller Tunnel (Los Angeles County, California)
Built 1942
Tunnel under hillside on Mount Lowe Road
Open to pedestrians only

Mulholland Drive Viaduct (Los Angeles County, California)
Built 1940
Concrete tee beam bridge over Hollywood Freeway (US 101) on Mulholland Drive in Los Angeles
Open to traffic

Myrtle Creek Bridge (Del Norte County, California)
Built 1984
Concrete arch bridge over Myrtle Creek on US 199
Open to traffic

Myrtledale Road Bridge (Napa County, California)
Built 1930
Concrete arch bridge over Napa River on Myrtledale Road in Calistoga
Open to traffic

Nacimiento Lake Drive Bridge (Monterey County, California)
Built 1921
Pratt Through truss bridge over San Antonio River on Nacimiento Lake Drive
Open to traffic

Napa Creek Bridge (Napa County, California)
Built 1920; replaced 2006
Lost stone arch bridge over Napa Creek on First Street in Napa
Replaced by new bridge 2006

Napa Creek Bridge (Napa County, California)
Built 1920
Stone arch bridge over Napa Creek on Pearl Street in Napa
Open to traffic

Napa River Bridge (Napa County, California)
Built 1949; rehabilitated 1977, replaced 2005
Vertical lift bridge over Napa River on CA 121 in Napa
Replaced by new "Maxwell Bridge", 2005