Oldest Bridges in California

The oldest bridge in California dates to 1860. The table below shows the state's most historic bridges, ranked by year built. Many of these structures have survived well beyond their original design life — click any bridge to see its current condition and inspection history.

How this ranking works

This state list uses the NBI year-built field and links each bridge to its current inspection record. Treat age as a history signal, not a condition score.

Bridge	County	Year Built	Condition	Daily Traffic
Main Street over Napa Creek	Napa	1860	Fair	5,972
Alleghany RD over Oregon Creek	Yuba	1860	Good	60
Laytnvlle-dos Rios over Burger Creek	Mendocino	1888	Fair	137
Nat Trails HWY over Workman Wash	San Bernardino	1890	Fair	146
Mission Canyon RD over Mission Creek	Santa Barbara	1891	Fair	10,600
Pope ST over Napa River	Napa	1894	Fair	2,790
U.s. Highway 101 over Irwin Creek	Marin	1895	Good	129,000
Purdon Road over South Yuba River	Nevada	1895	Fair	71
Old Sonoma RD over Carneros Creek	Napa	1896	Fair	1,959
Castro Valley BLVD over Lake Chabot Creek	Alameda	1900	Good	33,600
Redwood RD over Redwood RD Fld Cntrl Ch	Alameda	1900	Good	29,900
Hicks Lane over Mud Creek	Butte	1900	Fair	744
S Chestnut AVE over Central Canal	Fresno	1900	Fair	15,202
Soeth RD (rd 410) over Stony Creek	Glenn	1900	Fair	11
Soda Springs Road over N Fk American River	Placer	1900	Fair	125
Interstate 805 over San Ysidro Ditch	San Diego	1900	Good	52,000
Main ST over Pilarcitos Creek	San Mateo	1900	Poor	2,350
Mountain Home RD over Bear Creek	San Mateo	1900	Fair	500
Stonehedge Road over San Mateo Creek	San Mateo	1900	Fair	1,000
Baywood Drive over San Mateo Creek	San Mateo	1900	Fair	1,000
Meridian ST over Los Gatos Creek	Santa Clara	1900	Good	43,000
Scott River RD over Middle Creek	Siskiyou	1900	Fair	135
State Route 128 over Header Draw	Sonoma	1900	Fair	2,650
Lawndale RD over Sonoma Creek	Sonoma	1900	Good	550
Odonnell Lane over Calabazas Creek	Sonoma	1900	Fair	500
Roeding Road over T.i.d. Ceres Main Canal	Stanislaus	1900	Fair	2,500
State Route 99 over Los Molinos Creek	Tehama	1900	Fair	6,800
No Data Entered over Tramway	Tuolumne	1900	Good	50
State Route 185 over San Leandro Creek	Alameda	1901	Fair	25,000
State Route 128 over Blossom Creek	Napa	1901	Fair	2,775
Garden Bar Road over Little Wolf Creek	Nevada	1901	Good	1,075
Crystal Springs RD over San Mateo Creek	San Mateo	1901	Fair	3,630
Waldo RD over Dry Creek	Yuba	1901	Fair	220
State Route 29 over Garnett Creek	Napa	1902	Poor	12,000
State Route 29 over York Creek	Napa	1902	Good	20,000
Railroad AVE over San Mateo Creek	San Mateo	1902	Fair	230
State Route 9 over Saratoga Creek	Santa Clara	1902	Fair	2,450
Turnpike Road over Trinity River	Trinity	1902	Good	751
State Route 49 over Woods Creek	Tuolumne	1902	Fair	11,500
Spring Mountain RD over York Creek	Napa	1903	Fair	1,500
State Route 99 SB over Stanislaus River	San Joaquin	1903	Fair	53,500
State Route 84 over West Union Creek	San Mateo	1903	Fair	6,600
Stafford ST over Cordilleras Creek	San Mateo	1903	Fair	5,000
Timbuctoo Road over Deep Ravine No 2	Yuba	1903	Poor	50
Durnell Road over Butte Creek	Butte	1904	Fair	48
Jefferson Street over Napa Creek	Napa	1904	Good	15,691
Greenwood AVE over Garnett Creek	Napa	1904	Poor	162
Seminary ST over Napa Creek	Napa	1904	Good	1,446
Bloomfield RD over South Yuba River	Nevada	1904	Poor	143
Crystal Springs RD over San Mateo Creek	San Mateo	1904	Fair	10,000
Crystal Springs RD over San Mateo Creek	San Mateo	1904	Good	10,000
Bianchi Lane over San Luis Obispo Creek	San Luis Obispo	1905	Poor	30
Kings Mountain RD over West Union Creek	San Mateo	1905	Good	2,075
Stilson Canyon RD over Little Chico Creek	Butte	1906	Fair	613
Oak Way over Sandy Gulch	Butte	1906	Fair	325
Cesar Chavez Av over RTE 10 Conn Busway	Los Angeles	1906	Fair	15,000
Montgomery DR over Santa Rosa Creek	Sonoma	1906	Good	8,600
Dell AVE over Carroll Canal	Los Angeles	1907	Fair	1,582
Dell Avenue over Linnie Canal	Los Angeles	1907	Fair	1,582
Dell Avenue over Howland Canal	Los Angeles	1907	Fair	1,582
Dell Avenue over Sherman Canal	Los Angeles	1907	Fair	1,582
Chiles Pope Vly RD over Chiles Creek	Napa	1907	Fair	1,600
State Route 82 over Stevens Creek	Santa Clara	1907	Good	49,000
Putah CR RD over Pleasants Creek	Solano	1907	Good	500
Pleasants Valley R over Miller Canyon Creek	Solano	1907	Fair	817
Wardlaw ST over Saint Helena Creek	Lake	1908	Fair	114
Norwood AVE over Ross Creek	Marin	1908	Good	1,200
Trancas ST over Milliken Creek	Napa	1908	Fair	3,000
Pope ST over Sulphur Creek	Napa	1908	Fair	2,790
Dyson Lane over Mid Fk Feather Riv Ovrfl	Plumas	1908	Fair	40
Imperial AVE over Chollas Creek	San Diego	1908	Good	7,578
Mac Arthur BLVD over San Leandro Creek	Alameda	1909	Fair	7,900
Foothill BLVD over San Lorenzo Creek	Alameda	1909	Fair	50,000
State Route 49 over Angels Creek	Calaveras	1909	Fair	9,100
Main ST over Angels Creek	Calaveras	1909	Fair	2,064
North Broadway over La Riv Bnsf Uprr Metro	Los Angeles	1909	Fair	23,648
Avenue 60 over Arroyo Seco Channel	Los Angeles	1909	Fair	16,300
Glenwood AVE over Ross Creek	Marin	1909	Fair	2,370
Winship Road over Corte Madera Creek	Marin	1909	Fair	2,000
Shady Lane over Ross Creek	Marin	1909	Good	1,800
Hardin RD over Maxwell Creek	Napa	1909	Fair	140
Michigan Bar RD over Cosumnes River	Sacramento	1909	Fair	21
Broad ST over Stenner Creek	San Luis Obispo	1909	Fair	4,496
Park Road over Gaviota Creek	Santa Barbara	1909	Fair	5
Penitencia Crk RD over Upper Penitencia Creek	Santa Clara	1909	Good	1,390
Redwood Retreat RD over Little Arthur Creek	Santa Clara	1909	Fair	400
Wildcat Creek Road over Scott River	Siskiyou	1909	Poor	20
Suisun Valley RD over Suisun Creek	Solano	1909	Fair	1,052
Geysers RD over Big Sulphur Creek	Sonoma	1909	Fair	140
2nd Street over Nathanson Creek	Sonoma	1909	Fair	820
Erle RD over South Fork Reeds Creek	Yuba	1909	Fair	190
State Route 99 over Cat Tail Slough	Butte	1910	Fair	13,400
State Route 162 over Biggs Extension Canal	Butte	1910	Fair	930
Central House RD over Wyman Ravine	Butte	1910	Fair	71
E. Kings Canyon RD over Fancher Creek Canal	Fresno	1910	Fair	12,102
Columbia ST over Metro	Los Angeles	1910	Good	4,284
N Main ST over Los Angeles River	Los Angeles	1910	Good	30,000
Huntington DR over Rubio Wash	Los Angeles	1910	Good	32,400
White Rock Road over Deadman Creek	Merced	1910	Good	85
Cholame Road over Little Cholame Creek	Monterey	1910	Fair	160
State Route 29 over Sulphur Creek	Napa	1910	Fair	24,000
Oak Knoll AVE over Napa River Overflow	Napa	1910	Fair	2,600
Larkmead Lane over Dutch Henry Creek	Napa	1910	Good	484
Port Wine Road over Slate Creek	Plumas	1910	Fair	50
Blarsden Gragle RD over Middle Fork Feather Riv	Plumas	1910	Fair	370
River Grove DR over Estrella River	San Luis Obispo	1910	Good	100
Delaware ST over San Mateo Creek	San Mateo	1910	Good	8,530
Pilarcitos Creek R over Pilarcitos Creek	San Mateo	1910	Poor	42
Santa Clara ST over Los Gatos Creek	Santa Clara	1910	Fair	20,350
Saratoga-sunyvl RD over Saratoga Creek	Santa Clara	1910	Good	10,769
Eller Lane over Scott River	Siskiyou	1910	Poor	172
Laughlin RD over Mark West Creek	Sonoma	1910	Fair	2,338
Kilburn Road over Orestimba Creek	Stanislaus	1910	Fair	122
Cooley Road over Sutter-butte Canal	Sutter	1910	Poor	193
Old Strwbry RD over S Fk Stanislaus River	Tuolumne	1910	Fair	275
Oakland Avenue over Linda Avenue	Alameda	1911	Fair	8,058
N Fulton AVE over Dry Creek Canal	Fresno	1911	Fair	7,818
State Route 162 over Sacramento River Ovfl	Glenn	1911	Poor	1,500
State Route 211 over Eel River	Humboldt	1911	Fair	5,300
Sierra HWY over Metrolink & Up Rr Creek	Los Angeles	1911	Fair	6,100
E Las Tunas DR over Rubio Wash	Los Angeles	1911	Good	30,846
Broad ST over San Luis Obispo Creek	San Luis Obispo	1911	Fair	3,000
Fremont AVE over Stevens Creek (fremont)	Santa Clara	1911	Fair	14,369
Newell RD over San Francisquito Creek	Santa Clara	1911	Fair	3,000
Winters Road over Mc Cune Creek	Solano	1911	Fair	1,521
Rogers Road over Del Puerto Creek	Stanislaus	1911	Fair	1,823
State Route 118 over Hondo Barranca	Ventura	1911	Good	18,000
Los Angeles AVE over Tapo Canyon Creek	Ventura	1911	Good	24,000
C. R. 49 over Hamilton Creek	Yolo	1911	Fair	106
"i" Street over Sacramento Up Bnsf Amtra	Yolo	1911	Fair	4,938
Park AVE over Little Chico Creek	Butte	1912	Fair	18,400
Main Street over Big Chico Creek	Butte	1912	Fair	24,621
Middle Bar RD over Mokelumne River	Calaveras	1912	Fair	23
S Golden State Bl over Fowler Switch Canal	Fresno	1912	Fair	4,000
California AVE over Kern Island Canal	Kern	1912	Fair	19,675
York BLVD over SR 110 Arroyo Seco Etc	Los Angeles	1912	Good	16,000
York BLVD over Arroyo Seco Channel	Los Angeles	1912	Good	26,327
State Route 99 over Little Dry Creek	Madera	1912	Fair	67,000
Oak Grove Road over Striped Rock Creek	Mariposa	1912	Good	50
Mountain House RD over Wilson Creek	Mendocino	1912	Good	572
Atwater Boulevard over Atwater Canal	Merced	1912	Fair	4,000
Aetna Springs RD over Swartz Creek	Napa	1912	Good	346
Yorba Place over Carbon Canyon Channel	Orange	1912	Fair	1,000
Belden Town Road over North Fork Feather River	Plumas	1912	Fair	170
Vernalis Road over Lone Tree Creek	San Joaquin	1912	Fair	100
Oak Run Road over Oak Run Creek	Shasta	1912	Fair	530
Mitchell Rd-s99 On over Ceres Main Canal	Stanislaus	1912	Fair	7,400
Salida Boulevard over M.i.d. Lateral #6	Stanislaus	1912	Fair	9,500
State Route 99 over Short Creek	Tehama	1912	Good	11,500
State Route 99 over Lake Draw	Tehama	1912	Good	11,500
State Route 99 over Long Creek	Tehama	1912	Good	6,800
Columbia Way over Woods Creek	Tuolumne	1912	Good	375
State Route 150 over Lion Canyon Creek	Ventura	1912	Good	2,400
State Route 16 over Taylor Creek	Yolo	1912	Fair	12,000
Center ST over San Lorenzo Creek	Alameda	1913	Fair	23,400
Broadway over Jackson Creek	Amador	1913	Fair	3,000
Road 99w over Stony Creek	Glenn	1913	Poor	4,157
State Route 99 over Lerdo Canal	Kern	1913	Fair	90,000
Colorado BLVD over Arroyo BLVD / Arroyo S	Los Angeles	1913	Good	10,600
San Fernando RD over Arroyo Seco Channel	Los Angeles	1913	Fair	19,200
Mountain House RD over Cummiskey Creek	Mendocino	1913	Fair	1,252
Zinfandel Lane over Napa River	Napa	1913	Fair	2,600
State Route 82 over Colma Creek	San Mateo	1913	Fair	28,500
State Route 82 over San Francisquito Creek	Santa Clara	1913	Fair	33,000
Old Redwood HWY over Pruitt Creek	Sonoma	1913	Fair	9,000
Old Redwood HWY over Sotoyome Creek	Sonoma	1913	Fair	5,900
C.r. #91a over Dry Slough	Yolo	1913	Fair	100
State Route 99 over Campbell Creek	Butte	1914	Fair	11,600
Afton Road over Butte Creek	Butte	1914	Poor	122
Main ST over San Andreas Creek	Calaveras	1914	Fair	1,443
Old 99w over Glenn Valley Slough Oflo	Colusa	1914	Good	1,298
Forni Road over Weber Creek	El Dorado	1914	Fair	2,049
Road 99 W over Logan Creek	Glenn	1914	Fair	447
Old HWY 99w over North Fork Logan Creek	Glenn	1914	Good	460
Union Avenue over East Branch Canal	Kern	1914	Fair	29,000
San Gabriel BLVD over Rubio Wash	Los Angeles	1914	Fair	32,542
La Loma RD over Arroyo Seco Chan	Los Angeles	1914	Good	3,570
Williams Ave. over Live Oak Cyn. Channel	Los Angeles	1914	Good	204
Kahlon Road over Duck Slough	Merced	1914	Fair	384
Kahlon Road over Duck Slough Overflow	Merced	1914	Fair	384
Old State Route 99 over Owens Creek	Merced	1914	Fair	384
Larkin ST over Hartnell Gulch	Monterey	1914	Fair	3,000
Keddie Resort Road over Spanish Creek	Plumas	1914	Fair	140
Mission BLVD over West Cucamonga Wash	San Bernardino	1914	Good	30,172
Foothill BLVD over Middle Channel Day Wash	San Bernardino	1914	Good	47,000
Foothill BLVD over San Antonio Overflow	San Bernardino	1914	Good	21,500
Foothill BLVD over San Antonio Overflow	San Bernardino	1914	Fair	21,500
Foothill BLVD over Cucamonga Overflow	San Bernardino	1914	Fair	31,500
Carlsbad BLVD over Buena Vista Creek	San Diego	1914	Fair	19,173
Georgia ST over University AVE	San Diego	1914	Good	2,179
State Route 227 over Corbett Canyon Creek	San Luis Obispo	1914	Good	3,350
Higgins Purisima R over Mills Creek	San Mateo	1914	Fair	477
State Route 273 over Spring Gulch	Shasta	1914	Good	9,800
Scott Mtn RD over East Fork Scott River	Siskiyou	1914	Fair	23
River RD over Russian River	Sonoma	1914	Poor	10,000
4th ST East over Nathanson Creek	Sonoma	1914	Fair	2,100
8th & 9th Street over M.i.d. Lateral #4	Stanislaus	1914	Fair	9,356
Monte Vista Avenue over T.i.d. Ceres Main Canal	Stanislaus	1914	Poor	473
Old HWY 99 W over Gay Creek	Tehama	1914	Good	2,001
Old HWY 99 W over Moore Creek	Tehama	1914	Poor	1,922