Total Bridges
27,040
Public highway bridges in California
State profile · Below national median SD
California bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in California — drawn straight from the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
- 4.6%
- Structurally deficient
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges rated 0-4
Structurally Deficient
4.6%
1,244 bridges flagged for repair priority
-2.4pp vs national avg 7.0%
California vs national bridge condition
California — Good condition share 32.5%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
California — Structurally deficient share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — California (FHWA NBI)
Counties (58)
Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136
California vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below California on the same metric.
39
Ohio
4.54% top marginal rate
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by composite NBI rating. Each is inspected at least every 24 months.
SPRING CREEK RD
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: M.I.D. CANAL
0.1 MI WEST OF ROAD 26.0, Madera, CA
Built 1955 Load: 3.2 t ADT: 200
GULLING STREET
Structurally DeficientOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
W JACK LONDON BLVD
FairOver: ARROYO LAS POSITAS
0.5 MI E OF EL CHARRO RD, Alameda, CA
Built 2012 Load: 32.4 t ADT: 12,660
SPRINGTOWN BLVD
FairOver: ALTAMONT CREEK
1 MI N OF I-580, Alameda, CA
Built 1981 Load: 32.4 t ADT: 5,700
AUTO MALL PKWY
FairOver: UP RR AND BARTD
0.6 KM WEST OF I-680, Alameda, CA
Built 1981 Load: 32.4 t ADT: 45,100
A ST
FairOver: MEEKLAND AVE
0.6 MI E OF 880, Alameda, CA
Built 1980 Load: 32.4 t ADT: 30,300
PASEO PADRE PKWY
FairOver: NORTH CANYON CROSSING
0.6 MI NORTH OF DURHAM RD, Alameda, CA
Built 1980 Load: 32.4 t ADT: 9,300
PATTERSON PASS RD
FairOver: FLOOD CONTROL CHANNEL
0.4 KM EAST OF S VASCO RD, Alameda, CA
Built 2000 Load: 32.4 t ADT: 3,260
LAUGHLIN ROAD
FairOver: ALTAMONT CREEK
0.1 KM N OF FOXTAIL DR, Alameda, CA
Built 1998 Load: 32.4 t ADT: 5,520
SOUTHFRONT ROAD
FairOver: ARROYO SECO
0.1 KM W OF STATE RTE 84, Alameda, CA
Built 1999 Load: 32.4 t ADT: 2,650
NORTH MINES ROAD
FairOver: UP RR, BNSF RY, & ACE
0.5 KM S. OF STATE RTE 84, Alameda, CA
Built 1999 Load: 32.4 t ADT: 2,392
PASEO PADRE PKWY
FairOver: UP RR & AMTRAK
0.4 KM NE OF TUPELO ST, Alameda, CA
Built 1980 Load: 32.4 t ADT: 11,400
WASHINGTON BLVD
FairOver: UP RR AND BARTD
0.5 MI W OF I-680, Alameda, CA
Built 2010 Load: 32.4 t ADT: 27,100
FIRST STREET
FairOver: ARROYO SECO
600' NW LAS POSITAS ROAD, Alameda, CA
Built 1994 Load: 32.4 t ADT: 19,950
FIRST STREET
FairOver: UP RR, BNSF RY, & ACE
150' SOUTH OF SCOTT ST, Alameda, CA
Built 1977 Load: 32.4 t ADT: 27,400
DUBLIN BLVD (WB)
FairOver: TASSAJARA CREEK
WEST OF JOHN MONEGO CT, Alameda, CA
Built 1999 Load: 32.4 t ADT: 10,000
DUBLIN BLVD (EB)
FairOver: TASSAJARA CREEK
WEST OF JOHN MONEGO CT, Alameda, CA
Built 1994 Load: 32.4 t ADT: 10,000
OWENS DRIVE
FairOver: TASSAJARA CREEK
NW OF ANDREWS DRIVE, Alameda, CA
Built 1987 Load: 32.4 t ADT: 15,000
STONERIDGE DRIVE
FairOver: TASSAJARA CREEK
NW OF LAS POSITAS BLVD, Alameda, CA
Built 1982 Load: 32.4 t ADT: 12,100
ROSEWOOD DRIVE
FairOver: TASSAJARA CREEK
WEST OF OLD SANTA RITA RD, Alameda, CA
Built 1985 Load: 32.4 t ADT: 11,000
CUSHING PARKWAY
FairOver: WETLANDS
0.8 MI WEST OF I-880, Alameda, CA
Built 2006 Load: 32.4 t ADT: 17,800
FIVE CANYONS PKWY
FairOver: CANYON "D"
0.9 MI SE/O CASTRO VALLEY, Alameda, CA
Built 2002 Load: 32.4 t ADT: 11,800
FIVE CANYONS PKWY
FairOver: SAN LORENZO CREEK
0.2 M S E CASTRO VALLEY B, Alameda, CA
Built 1992 Load: 32.4 t ADT: 11,800
STONE CLIFF VISTA
FairOver: SYCAMORE CREEK
500 FT W OF CASE AVE, Alameda, CA
Built 2004 Load: 32.4 t ADT: 15,700
BUSCH TO EL CHARRO
FairOver: ARROYO MOCHO
2000 FT S OF 580, Alameda, CA
Built 2003 Load: 32.4 t ADT: 3,545
WEST LAS POSITAS
FairOver: CHABOT CANAL
2500 FT W OF INGLEWOOD, Alameda, CA
Built 1984 Load: 32.4 t ADT: 3,545
GIBRALTAR DRIVE
FairOver: CHABOT CANAL
1500 FT S OF OWENS, Alameda, CA
Built 1984 Load: 32.4 t ADT: 3,545
INGLEWOOD DRIVE
FairOver: CHABOT CANAL
1000 FT S OF STONERIDGE, Alameda, CA
Built 1984 Load: 32.4 t ADT: 3,545
E 14TH STREET
FairOver: LAKE MERRITT CHANNEL
JUST W LAKESHORE AVE, Alameda, CA
Built 2012 Load: 32.4 t ADT: 7,754
E 14TH STREET
FairOver: LAKE MERRITT CHANNEL
JUST W LAKESHORE AVE, Alameda, CA
Built 2012 Load: 32.4 t ADT: 7,754
ALVARADO STREET
FairOver: SAN LEANDRO CREEK
100 FT S OF PERALTA AVE, Alameda, CA
Built 2001 Load: 32.4 t ADT: 10,000
MORRISON CANYON RD
FairOver: MORRISON CANYON
0.8 MILES EAST OF RTE 238, Alameda, CA
Built 1998 Load: 32.4 t ADT: 150
CONCANNON BLVD
FairOver: ARROYO MOCHO
0.2 MI S/O S LIVERMORE AV, Alameda, CA
Built 2003 Load: 32.4 t ADT: 15,041
WALLIS RANCH DRIVE
FairOver: TASSAJARA CREEK
NW OF TASSAJARA RD, Alameda, CA
Built 2016 Load: 32.4 t ADT: 1,000
WILLOW CREEK DRIVE
FairOver: ALAMO CREEK
W OF DOUGHTERTY RD, Alameda, CA
Built 1987 Load: 32.4 t ADT: 1,000
STATE ROUTE 88
FairOver: CAPLES LAKE SPILLWAY
10-ALP-088-0.46, Alpine, CA
Built 1987 Load: 32.4 t ADT: 2,800
STATE ROUTE 4
FairOver: PACIFIC CREEK
10-ALP-004-11.99, Alpine, CA
Built 1937 Load: 32.4 t ADT: 1,250
DIAMOND VALLEY RD
FairOver: WEST FORK CARSON RIVER
SOUTH OF SH 88, Alpine, CA
Built 1987 Load: 32.4 t ADT: 1,000
DIAMOND VALLEY RD
FairOver: INDIAN CREEK
0.8 MI E AIRPORT RD, Alpine, CA
Built 1956 Load: 32.4 t ADT: 157
HIGHLAND LAKE RD
FairOver: MOKELUMNE RIVER
3.3 MI S OF S.H. 4, Alpine, CA
Built 1989 Load: 32.4 t ADT: 25
STATE ROUTE 49
FairOver: DRY CREEK
10-AMA-049-13.57, Amador, CA
Built 1995 Load: 32.4 t ADT: 11,000
STATE ROUTE 16
FairOver: ARKANSAS CREEK
10-AMA-016-R0.20, Amador, CA
Built 1966 Load: 32.4 t ADT: 6,550
MISSION BLVD
FairOver: JACKSON CREEK
0.1 KM S/O SR 88, Amador, CA
Built 2000 Load: 32.4 t ADT: 2,000
BUENA VISTA ROAD
FairOver: JACKSON CREEK
0.40 MI SO/JACKSON VALLEY, Amador, CA
Built 1994 Load: 32.4 t ADT: 2,500
BROADWAY
FairOver: SOUTH FORK JACKSON CREEK
0.6 MI SOUTH OF ST RTE 88, Amador, CA
Built 2005 Load: 32.4 t ADT: 3,000
MARCUCCI LANE
FairOver: SOUTH FORK JACKSON CREEK
1 MILE NE OF STATE RTE 49, Amador, CA
Built 2011 Load: 32.4 t ADT: 800
STATE ROUTE 162
FairOver: RICE CANAL
03-BUT-162-7.00, Butte, CA
Built 1956 Load: 32.4 t ADT: 930
STATE ROUTE 32
FairOver: SACRAMENTO RIVER
03-BUT-032-0.01, Butte, CA
Built 1987 Load: 32.4 t ADT: 11,700
STATE ROUTE 70
FairOver: TAILING DITCH
03-BUT-070-12.63, Butte, CA
Built 1958 Load: 32.4 t ADT: 14,600
STATE ROUTE 149 SB
FairOver: DRY CREEK
03-BUT-149-R3.50, Butte, CA
Built 2008 Load: 32.4 t ADT: 6,875
STATE ROUTE 99 NB
FairOver: BUTTE CREEK
03-BUT-099-28.72, Butte, CA
Built 2014 Load: 32.4 t ADT: 14,125
STATE ROUTE 162
FairOver: FEATHER RIVER
03-BUT-162-15.57-OVL, Butte, CA
Built 2000 Load: 32.4 t ADT: 8,600
Showing 12,251-12,300 of 27,040 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.