US Bridges
← Back to states

California Bridges

25,845 bridges across 58 counties

Bridge Map

Summary

Total Bridges:25,845
Good Condition:11,798 (46%)
Fair Condition:12,521 (48%)
Poor Condition:1,526 (6%)
Average Age:55.1 years
Counties:58

Bridge Condition Distribution

Good
Fair
Poor
Search All California Bridges →

Bridge Types

Bridge TypeCountPercentage
Box Beam or Girders - Multiple8,05131.2%
Slab5,92822.9%
Stringer/Multi-beam or Girder3,91015.1%
Culvert3,54913.7%
Tee Beam2,76510.7%
Arch - Deck5482.1%
Box Beam or Girders - Single or Spread3241.3%
Girder and Floorbeam System2491.0%
Truss - Thru2280.9%
Frame1420.5%
Truss - Deck440.2%
Movable - Bascule170.1%
Channel Beam170.1%
Movable - Swing150.1%
Suspension130.1%
Other130.1%
Segmental Box Girder110.0%
Arch - Thru110.0%
Orthotropic40.0%
Movable - Lift40.0%
Unknown10.0%
Stayed Girder10.0%

Bridge Age Distribution

Bridges Built Over Time

Notable Bridges in California

Most Trafficked Bridges

GILMAN STREET

Good

County 001, California

Daily Traffic: 550,000 vehicles

POWELL STREET

Good

County 001, California

Daily Traffic: 531,000 vehicles

BURIED WALKWAY

Fair

County 001, California

Daily Traffic: 531,000 vehicles

Oldest Bridges

OREGON CREEK

Good

County 115, California

Built in 1860 (165 years old)

NAPA CREEK

Fair

County 055, California

Built in 1860 (165 years old)

BURGER CREEK

Fair

County 045, California

Built in 1888 (137 years old)

Longest Bridges

SAN FRANCISCO BAY

Poor

County 081, California

Length: 10.0 meters

RTE 110 & 29 STREETS

Fair

County 037, California

Length: 10.0 meters

CALTRAIN UP RR CITY STS

Fair

County 075, California

Length: 10.0 meters

Recently Built Bridges

View all
N. Fork American RiverGood

County 061 • Built in 2023

HUNTER CREEKGood

County 015 • Built in 2023

JACK SLOUGHGood

County 115 • Built in 2023

INTERSTATE ROUTE 80Good

County 061 • Built in 2023

INTERSTATE ROUTE 80Good

County 061 • Built in 2023

INTERSTATE ROUTE 80Good

County 061 • Built in 2023

SCOTTY CREEKGood

County 097 • Built in 2023

SONOMA CREEKGood

County 097 • Built in 2023

HOOKER CREEKGood

County 097 • Built in 2023

SOUTHGATE MACALLA ROADGood

County 075 • Built in 2023

Counties in California

58 counties
Alameda County
658 bridges
Alpine County
32 bridges
Amador County
61 bridges
Butte County
437 bridges
Calaveras County
105 bridges
Colusa County
211 bridges
Contra Costa County
618 bridges
Del Norte County
96 bridges
El Dorado County
192 bridges
Fresno County
916 bridges
Glenn County
242 bridges
Humboldt County
396 bridges
Imperial County
444 bridges
Inyo County
66 bridges
Kern County
668 bridges
Kings County
168 bridges
Lake County
129 bridges
Lassen County
108 bridges
Los Angeles County
3,547 bridges
Madera County
247 bridges
Marin County
207 bridges
Mariposa County
109 bridges
Mendocino County
356 bridges
Merced County
528 bridges
Modoc County
87 bridges
Mono County
49 bridges
Monterey County
377 bridges
Napa County
158 bridges
Nevada County
135 bridges
Orange County
1,164 bridges
Placer County
337 bridges
Plumas County
165 bridges
Riverside County
1,117 bridges
Sacramento County
740 bridges
San Benito County
76 bridges
San Bernardino County
1,422 bridges
San Diego County
1,632 bridges
San Francisco County
143 bridges
San Joaquin County
644 bridges
San Luis Obispo County
401 bridges
San Mateo County
361 bridges
Santa Barbara County
418 bridges
Santa Clara County
964 bridges
Santa Cruz County
192 bridges
Shasta County
492 bridges
Sierra County
65 bridges
Siskiyou County
421 bridges
Solano County
373 bridges
Sonoma County
609 bridges
Stanislaus County
386 bridges
Sutter County
119 bridges
Tehama County
450 bridges
Trinity County
194 bridges
Tulare County
589 bridges
Tuolumne County
125 bridges
Ventura County
501 bridges
Yolo County
271 bridges
Yuba County
127 bridges