Total Bridges
27,040
Public highway bridges in California
State profile · Below median Poor share
California bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in California, based on the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
Data updated May 2026
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges whose lowest applicable component is rated 0-4
-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 - Poor-condition share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below California on the same metric.
OH
Ohio
4.54% top marginal rate
NJ
New Jersey
4.59% top marginal rate
CA
California
4.60% top marginal rate
AR
Arkansas
4.71% top marginal rate
WA
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
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
PoorOver: 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
STATE ROUTE 24 WB
UnknownOver: TELEGRAPH AVE
04-ALA-024-R3.06-OAK, Alameda, CA
Built 1970 ADT: 1,420
STATE ROUTE 24 EB
UnknownOver: TELEGRAPH AVE
04-ALA-024-R3.06-OAK, Alameda, CA
Built 1970 ADT: 22,241
E24-CLAREMONT OFF
UnknownOver: TELEGRAPH AVE
04-ALA-024-R3.06-OAK, Alameda, CA
Built 1970 ADT: 21,840
W24-TELEGRAPH OFF
UnknownOver: CLAREMONT AVE
04-ALA-024-R3.38-OAK, Alameda, CA
Built 1970 ADT: 21,300
STATE ROUTE 24 WB
UnknownOver: CLAREMONT AVE
04-ALA-024-R3.32-OAK, Alameda, CA
Built 1970 ADT: 21,000
STATE ROUTE 24 EB
UnknownOver: CLAREMONT AVE
04-ALA-024-R3.30-OAK, Alameda, CA
Built 1970 ADT: 4,900
52ND WB-W24 ON RMP
UnknownOver: 52ND STREET
04-ALA-024-R2.77-OAK, Alameda, CA
Built 1970 ADT: 10,000
STATE ROUTE 24 WB
UnknownOver: 52ND STREET
04-ALA-024-R2.77-OAK, Alameda, CA
Built 1970 ADT: 10,000
STATE ROUTE 24 EB
UnknownOver: 52ND STREET
04-ALA-024-R2.77-OAK, Alameda, CA
Built 1970 ADT: 10,000
STATE ROUTE 24 EB
UnknownOver: COLLEGE AVE & FOREST ST
04-ALA-024-R3.54-OAK, Alameda, CA
Built 1970 ADT: 840
STATE ROUTE 24 EB
UnknownOver: PRESLEY WAY
04-ALA-024-R3.97-OAK, Alameda, CA
Built 1970 ADT: 1,170
W24-BROADWAY OFFRP
UnknownOver: PATTON STREET
04-ALA-024-R4.21-OAK, Alameda, CA
Built 1970 ADT: 2,000
STATE ROUTE 24 WB
UnknownOver: PATTON STREET
04-ALA-024-R4.17-OAK, Alameda, CA
Built 1970 ADT: 2,000
STATE ROUTE 24 EB
UnknownOver: PATTON STREET
04-ALA-024-R4.15-OAK, Alameda, CA
Built 1970 ADT: 2,860
STATE ROUTE 24 WB
UnknownOver: GOLDEN GATE AVE
04-ALA-024-R4.44-OAK, Alameda, CA
Built 1970 ADT: 650
STATE ROUTE 24 EB
UnknownOver: GOLDEN GATE AVE
04-ALA-024-R4.44-OAK, Alameda, CA
Built 1970 ADT: 650
INTERSTATE 980
UnknownOver: 27TH,NORTHGATE,SYCAMORE
04-ALA-980-1.40-OAK, Alameda, CA
Built 1969 ADT: 16,000
INTERSTATE 980
UnknownOver: 27TH,NORTHGATE,SYCAMORE
04-ALA-980-1.33-OAK, Alameda, CA
Built 1969 ADT: 16,000
CENTER STREET
UnknownOver: INTERSTATE 580
04-ALA-580-R28.75, Alameda, CA
Built 1986 ADT: 199,000
INTERSTATE 680 SB
UnknownOver: SCOTT CREEK RD
04-ALA-680-M0.13-FMT, Alameda, CA
Built 1971 ADT: 9,500
INTERSTATE 680 NB
UnknownOver: SCOTT CREEK RD
04-ALA-680-M0.13-FMT, Alameda, CA
Built 1971 ADT: 9,500
INTERSTATE 680 SB
UnknownOver: SR 262 (MISSION BLVD)
04-ALA-680-M2.38-FMT, Alameda, CA
Built 1971 ADT: 76,000
INTERSTATE 680 NB
UnknownOver: SR 262 (MISSION BLVD)
04-ALA-680-M2.38-FMT, Alameda, CA
Built 1971 ADT: 76,000
INTERSTATE 680 SB
UnknownOver: GRIMMER BLVD
04-ALA-680-M3.35-FMT, Alameda, CA
Built 1971 ADT: 10,000
INTERSTATE 680 NB
UnknownOver: GRIMMER BLVD
04-ALA-680-M3.35-FMT, Alameda, CA
Built 1971 ADT: 10,000
EL CHARRO RD
UnknownOver: INTERSTATE 580
04-ALA-580-16.70, Alameda, CA
Built 1972 ADT: 217,000
N238-W580 CONNECTR
UnknownOver: CASTRO VALLEY BLVD
04-ALA-238-R14.47, Alameda, CA
Built 1988 ADT: 5,000
66TH AVENUE
UnknownOver: INTERSTATE 880 & RAMPS
04-ALA-880-26.61-OAK, Alameda, CA
Built 1968 ADT: 199,900
E580-S238 CONNECTR
UnknownOver: SR 238 & CONNECTORS
04-ALA-580-M31.10, Alameda, CA
Built 1988 ADT: 158,000
INTERSTATE RTE 980
UnknownOver: SAN PABLO, W GRAND, MLKJ
04-ALA-980-1.11-OAK, Alameda, CA
Built 1973 ADT: 11,200
CASTRO VALLEY BLVD
UnknownOver: STATE ROUTE 238 NB
04-ALA-238-R14.47, Alameda, CA
Built 1990 ADT: 76,000
HESPERIAN BLVD
UnknownOver: STATE ROUTE 92 & RAMPS
04-ALA-092-R5.76-HAY, Alameda, CA
Built 1975 ADT: 5,000
BARTD
UnknownOver: ST RTE 92 (JACKSON ST)
04-ALA-092-8.03-HAY, Alameda, CA
Built 1969 ADT: 57,000
BARTD
UnknownOver: STATE ROUTE 77
04-ALA-077-0.33-OAK, Alameda, CA
Built 1969 ADT: 21,500
BARTD
UnknownOver: STATE ROUTE 112
04-ALA-112-1.36-SLN, Alameda, CA
Built 1969 ADT: 41,250
18TH ST
UnknownOver: INTERSTATE 980
04-ALA-980-0.90-OAK, Alameda, CA
Built 1973 ADT: 62,000
BARTD
UnknownOver: STATE ROUTE 84
04-ALA-084-9.66-FMT, Alameda, CA
Built 1970 ADT: 22,400
17TH STREET
UnknownOver: INTERSTATE 980
04-ALA-980-0.86-OAK, Alameda, CA
Built 1981 ADT: 62,000
BRUSH ST-W980 ON R
UnknownOver: W980-12TH ST OFF-RAMP
04-ALA-980-0.79-OAK, Alameda, CA
Built 1981 ADT: 7,000
14TH STREET
UnknownOver: INTERSTATE 980
04-ALA-980-0.70-OAK, Alameda, CA
Built 1981 ADT: 76,000
12TH ST-E980 ON-RP
UnknownOver: E980-17TH ST OFF-RAMP
04-ALA-980-0.62-OAK, Alameda, CA
Built 1981 ADT: 3,500
12 TH STREET
UnknownOver: INTERSTATE 980
04-ALA-980-0.60-OAK, Alameda, CA
Built 1981 ADT: 76,000
11TH STREET
UnknownOver: INTERSTATE 980
04-ALA-980-0.54-OAK, Alameda, CA
Built 1981 ADT: 76,000
S980-S880 CONNECTO
UnknownOver: 5TH,I880,6TH,7TH,MLK,JEF
04-ALA-980-0.02-OAK, Alameda, CA
Built 1985 ADT: 121,000
S980-JACKSON ST OF
UnknownOver: WASH,BROAD,RT260,WEB,5TH
04-ALA-980-0.01-OAK, Alameda, CA
Built 1985 ADT: 55,100
PERALTA STREET
UnknownOver: STATE ROUTE 123
04-ALA-123-0.15-EMV, Alameda, CA
Built 1936 ADT: 24,350
SUNNYSLOPE AVENUE
UnknownOver: INTERSTATE 580
04-ALA-580-R26.66, Alameda, CA
Built 1986 ADT: 197,000
STONERIDGE DR
UnknownOver: I 680, SO SAN RAMON CRK
04-ALA-680-R19.30-PLE, Alameda, CA
Built 1980 ADT: 146,000
THORNTON AVE
UnknownOver: STATE ROUTE 84
04-ALA-084-R3.75-NWK, Alameda, CA
Built 1983 ADT: 54,000
STATE ROUTE 84 WB
UnknownOver: NEWARK BLVD
04-ALA-084-R4.88-NWK, Alameda, CA
Built 1983 ADT: 20,000
Showing 201-250 of 27,040 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.