Oldest Bridges in California

The oldest bridge in California is the Alleghany RD over Oregon Creek in Yuba County, built in 1860.

Age, drawn to scale

The 10 oldest in California, one timeline

1850190019502000today

1Alleghany RD over Oregon CreekCA · 1860 · 60/day 2Laytnvlle-dos Rios over Burger CreekCA · 1888 · 137/day 3Mission Canyon RD over Mission CreekCA · 1891 · 11k/day 4Pope ST over Napa RiverCA · 1894 · 2.8k/day 5Purdon Road over South Yuba RiverCA · 1895 · 71/day 6Old Sonoma RD over Carneros CreekCA · 1896 · 2.0k/day 7Scott River RD over Middle CreekCA · 1900 · 135/day 8State Route 99 over Los Molinos CreekCA · 1900 · 6.8k/day 9Soeth RD (rd 410) over Stony CreekCA · 1900 · 11/day 10Hicks Lane over Mud CreekCA · 1900 · 744/day For scale: the Brooklyn BridgeNY · 1883 · 111k/day

Each bar runs from the year the bridge was built to today, colored by its overall condition (green good, orange fair, red poor). A white notch marks a recorded reconstruction; many of these bridges have been rebuilt or widened more than once, and the inventory keeps only the most recent date. Daily traffic is the latest count.

When the bridges were built

every bridge in California by the decade it was built

Before 1900pre—

1900s'009%

320

1910s'1010%

889

1920s'2011%

1.3k

1930s'309%

1.3k

1940s'408%

3.2k

1950s'507%

6.6k

1960s'605%

4.4k

1970s'704%

2.2k

1980s'804%

2.3k

1990s'902%

1.7k

2000s'002%

1.2k

2010s'100%

387

2020s'200%

bridges builtshare rated poor

goodfairpoor

Bars are stacked by today's condition rating. 25,972 bridges are counted. Build years before 1900 are counted only when credible.

The Oldest Bridges in California

Bridge	County	Built	Rebuilt	Material	Daily Traffic	Condition
Alleghany RD over Oregon Creek	Yuba	1860	2017	Wood or Timber	60	Good
Laytnvlle-dos Rios over Burger Creek	Mendocino	1888		Steel	137	Fair
Mission Canyon RD over Mission Creek	Santa Barbara	1891		Masonry	10,600	Fair
Pope ST over Napa River	Napa	1894		Masonry	2,790	Fair
Purdon Road over South Yuba River	Nevada	1895	1951	Steel	71	Fair
Old Sonoma RD over Carneros Creek	Napa	1896	1914	Masonry	1,959	Fair
Scott River RD over Middle Creek	Siskiyou	1900	1997	Steel	135	Fair
State Route 99 over Los Molinos Creek	Tehama	1900	1935	Concrete Continuous	6,800	Fair
Soeth RD (rd 410) over Stony Creek	Glenn	1900		Steel	11	Fair
Hicks Lane over Mud Creek	Butte	1900	1920	Concrete Continuous	744	Fair
Brooklyn Bridge over I278 Fdr Drive Fdr Dri		1883	2016		110,939	Poor
State Route 128 over Header Draw	Sonoma	1900		Concrete Continuous	2,650	Fair
Lawndale RD over Sonoma Creek	Sonoma	1900	1940	Concrete Continuous	550	Good
Odonnell Lane over Calabazas Creek	Sonoma	1900		Masonry	500	Fair
Castro Valley BLVD over Lake Chabot Creek	Alameda	1900	1917	Concrete	33,600	Good
Redwood RD over Redwood RD Fld Cntrl Ch	Alameda	1900	1962	Concrete Continuous	29,900	Good
Main ST over Pilarcitos Creek	San Mateo	1900		Concrete	2,350	Poor
Mountain Home RD over Bear Creek	San Mateo	1900		Concrete	500	Fair
Stonehedge Road over San Mateo Creek	San Mateo	1900		Concrete	1,000	Fair
Baywood Drive over San Mateo Creek	San Mateo	1900		Concrete	1,000	Fair
Meridian ST over Los Gatos Creek	Santa Clara	1900	1949	Concrete	43,000	Good
Roeding Road over T.i.d. Ceres Main Canal	Stanislaus	1900		Concrete Continuous	2,500	Fair
S Chestnut AVE over Central Canal	Fresno	1900	1951	Concrete Continuous	15,202	Fair
Interstate 805 over San Ysidro Ditch	San Diego	1900	1975	Concrete Continuous	52,000	Good
No Data Entered over Tramway	Tuolumne	1900		Steel	50	Good
Waldo RD over Dry Creek	Yuba	1901	1979	Steel	220	Fair
Garden Bar Road over Little Wolf Creek	Nevada	1901	2018	Steel Continuous	1,075	Good
State Route 128 over Blossom Creek	Napa	1901	1993	Masonry	2,775	Fair
State Route 185 over San Leandro Creek	Alameda	1901		Concrete	25,000	Fair
Crystal Springs RD over San Mateo Creek	San Mateo	1901		Concrete	3,630	Fair
Turnpike Road over Trinity River	Trinity	1902	1998	Steel	751	Good
State Route 29 over Garnett Creek	Napa	1902	1955	Masonry	12,000	Poor
State Route 29 over York Creek	Napa	1902	1942	Masonry	20,000	Good
State Route 49 over Woods Creek	Tuolumne	1902	1951	Steel	11,500	Fair
Railroad AVE over San Mateo Creek	San Mateo	1902		Concrete	230	Fair
State Route 9 over Saratoga Creek	Santa Clara	1902	2015	Masonry	2,450	Fair
Timbuctoo Road over Deep Ravine No 2	Yuba	1903		Steel	50	Poor
Spring Mountain RD over York Creek	Napa	1903	1935	Masonry	1,500	Fair
State Route 99 SB over Stanislaus River	San Joaquin	1903	2021	Steel	53,500	Fair
State Route 84 over West Union Creek	San Mateo	1903		Concrete	6,600	Fair
Stafford ST over Cordilleras Creek	San Mateo	1903		Concrete	5,000	Fair
Durnell Road over Butte Creek	Butte	1904		Steel	48	Fair
Bloomfield RD over South Yuba River	Nevada	1904	1989	Steel	143	Poor
Jefferson Street over Napa Creek	Napa	1904	1970	Masonry	15,691	Good
Greenwood AVE over Garnett Creek	Napa	1904		Masonry	162	Poor
Seminary ST over Napa Creek	Napa	1904	1933	Masonry	1,446	Good
Crystal Springs RD over San Mateo Creek	San Mateo	1904		Concrete	10,000	Fair
Crystal Springs RD over San Mateo Creek	San Mateo	1904		Concrete	10,000	Good
Kings Mountain RD over West Union Creek	San Mateo	1905		Concrete	2,075	Good
Bianchi Lane over San Luis Obispo Creek	San Luis Obispo	1905		Steel	30	Poor
Stilson Canyon RD over Little Chico Creek	Butte	1906	1945	Steel	613	Fair
Oak Way over Sandy Gulch	Butte	1906	1936	Steel	325	Fair
Montgomery DR over Santa Rosa Creek	Sonoma	1906	1948	Steel	8,600	Good
Cesar Chavez Av over RTE 10 Conn Busway	Los Angeles	1906		Concrete	15,000	Fair
Chiles Pope Vly RD over Chiles Creek	Napa	1907	1950	Concrete Continuous	1,600	Fair
Putah CR RD over Pleasants Creek	Solano	1907	1963	Concrete	500	Good
Pleasants Valley R over Miller Canyon Creek	Solano	1907		Concrete	817	Fair
State Route 82 over Stevens Creek	Santa Clara	1907	1965	Concrete	49,000	Good
Dell AVE over Carroll Canal	Los Angeles	1907		Concrete	1,582	Fair
Dell Avenue over Linnie Canal	Los Angeles	1907		Concrete	1,582	Fair
Dell Avenue over Howland Canal	Los Angeles	1907		Concrete	1,582	Fair
Dell Avenue over Sherman Canal	Los Angeles	1907		Concrete	1,582	Fair
Dyson Lane over Mid Fk Feather Riv Ovrfl	Plumas	1908		Steel	40	Fair
Wardlaw ST over Saint Helena Creek	Lake	1908		Concrete	114	Fair
Trancas ST over Milliken Creek	Napa	1908		Masonry	3,000	Fair
Pope ST over Sulphur Creek	Napa	1908	1950	Masonry	2,790	Fair
Norwood AVE over Ross Creek	Marin	1908		Concrete Continuous	1,200	Good
Imperial AVE over Chollas Creek	San Diego	1908	1981	Concrete	7,578	Good
Wildcat Creek Road over Scott River	Siskiyou	1909		Steel	20	Poor
Erle RD over South Fork Reeds Creek	Yuba	1909	2004	Steel Continuous	190	Fair
Geysers RD over Big Sulphur Creek	Sonoma	1909		Steel	140	Fair
2nd Street over Nathanson Creek	Sonoma	1909		Concrete	820	Fair
Hardin RD over Maxwell Creek	Napa	1909		Masonry	140	Fair
Suisun Valley RD over Suisun Creek	Solano	1909		Concrete	1,052	Fair
Michigan Bar RD over Cosumnes River	Sacramento	1909	1958	Steel	21	Fair
Glenwood AVE over Ross Creek	Marin	1909		Concrete Continuous	2,370	Fair
Winship Road over Corte Madera Creek	Marin	1909		Concrete	2,000	Fair
Shady Lane over Ross Creek	Marin	1909		Concrete Continuous	1,800	Good
State Route 49 over Angels Creek	Calaveras	1909		Concrete	9,100	Fair
Main ST over Angels Creek	Calaveras	1909		Concrete	2,064	Fair
Mac Arthur BLVD over San Leandro Creek	Alameda	1909	1934	Concrete	7,900	Fair
Foothill BLVD over San Lorenzo Creek	Alameda	1909	1957	Concrete Continuous	50,000	Fair
Penitencia Crk RD over Upper Penitencia Creek	Santa Clara	1909		Concrete	1,390	Good
Redwood Retreat RD over Little Arthur Creek	Santa Clara	1909		Concrete	400	Fair
Broad ST over Stenner Creek	San Luis Obispo	1909	1953	Concrete	4,496	Fair
Park Road over Gaviota Creek	Santa Barbara	1909		Steel	5	Fair
North Broadway over La Riv Bnsf Uprr Metro	Los Angeles	1909	2000	Concrete Continuous	23,648	Fair
Avenue 60 over Arroyo Seco Channel	Los Angeles	1909	1939	Concrete	16,300	Fair
Eller Lane over Scott River	Siskiyou	1910	1985	Steel	172	Poor
Port Wine Road over Slate Creek	Plumas	1910		Steel	50	Fair
Blarsden Gragle RD over Middle Fork Feather Riv	Plumas	1910	1965	Steel	370	Fair
State Route 99 over Cat Tail Slough	Butte	1910	1939	Concrete	13,400	Fair
State Route 162 over Biggs Extension Canal	Butte	1910	1951	Concrete Continuous	930	Fair
Central House RD over Wyman Ravine	Butte	1910	1970	Steel	71	Fair
Cooley Road over Sutter-butte Canal	Sutter	1910	1974	Concrete Continuous	193	Poor
Laughlin RD over Mark West Creek	Sonoma	1910		Concrete	2,338	Fair
State Route 29 over Sulphur Creek	Napa	1910	1975	Masonry	24,000	Fair
Oak Knoll AVE over Napa River Overflow	Napa	1910		Masonry	2,600	Fair
Larkmead Lane over Dutch Henry Creek	Napa	1910		Masonry	484	Good
Old Strwbry RD over S Fk Stanislaus River	Tuolumne	1910		Concrete	275	Fair

Oldest bridges in the United States · Longest bridges in California