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
STATE ROUTE 91
UnknownOver: I 710, W91-S710,N710-W91
07-LA-091-R11.64-LBCH, Los Angeles, CA
Built 1974 ADT: 35,000
E91-N710 CONNECTOR
UnknownOver: I 710, W91-S710,N710-E91
07-LA-091-R11.65-LBCH, Los Angeles, CA
Built 1974 ADT: 65,000
STATE ROUTE 91
UnknownOver: SUSANA RD
07-LA-091-R10.81-COM, Los Angeles, CA
Built 1974 ADT: 7,500
W134-ORANGE GROVE
UnknownOver: E210-W134 & N710-W134
07-LA-134-R13.08-PAS, Los Angeles, CA
Built 1974 ADT: 7,690
MAPLE ST
UnknownOver: I-210 & I-710 CONN
07-LA-210-R24.58-PAS, Los Angeles, CA
Built 1975 ADT: 8,350
W210-S710 CONN
UnknownOver: ROUTE 210 EB
07-LA-210-R25.10-PAS, Los Angeles, CA
Built 1974 ADT: 294,000
S. PASADENA AVE
UnknownOver: N710-E210 CONNECTOR RAMP
07-LA-710-R32.68-PAS, Los Angeles, CA
Built 1975 ADT: 66,000
WALNUT ST
UnknownOver: N710-E210 CONNECTOR RAMP
07-LA-710-R32.69-PAS, Los Angeles, CA
Built 1975 ADT: 66,000
MAPLE ST-W210
UnknownOver: W210-S710 & W210 CONN
07-LA-210-R25.21-PAS, Los Angeles, CA
Built 1974 ADT: 14,600
WALNUT ST
UnknownOver: E210-W134 CONNECTOR RAMP
07-LA-210-R24.94-PAS, Los Angeles, CA
Built 1974 ADT: 5,700
DEL MAR BLVD
UnknownOver: INTERSTATE 710
07-LA-710-T32.11-PAS, Los Angeles, CA
Built 1975 ADT: 47,000
GREEN ST
UnknownOver: INTERSTATE 710
07-LA-710-R32.37-PAS, Los Angeles, CA
Built 1975 ADT: 47,000
COLORADO BLVD
UnknownOver: INTERSTATE 710
07-LA-710-R32.45-PAS, Los Angeles, CA
Built 1975 ADT: 220,000
ST JOHN AVENUE
UnknownOver: E134-S710 CONNECTOR RAMP
07-LA-134-R13.23-PAS, Los Angeles, CA
Built 1975 ADT: 225,000
N710-W134 CONNECTR
UnknownOver: I 710, CONNS, ST JOHN AV
07-LA-710-R32.63-PAS, Los Angeles, CA
Built 1975 ADT: 32,900
WALNUT STREET
UnknownOver: W210&E210-S710,N710-W210
07-LA-210-R24.95-PAS, Los Angeles, CA
Built 1975 ADT: 9,300
ORANGE GROVE-E134
UnknownOver: SR 134 & CONNECTORS
07-LA-134-R13.07-PAS, Los Angeles, CA
Built 1974 ADT: 220,000
INTERSTATE 10
UnknownOver: LARK ELLEN AVE
07-LA-010-35.97-WCOV, Los Angeles, CA
Built 1975 ADT: 14,000
INTERSTATE 10
UnknownOver: HOLLENBECK STREET
07-LA-010-36.98-WCOV, Los Angeles, CA
Built 1975 ADT: 11,200
FAIR OAKS AVE
UnknownOver: ROUTE 210
07-LA-210-R25.29-PAS, Los Angeles, CA
Built 1975 ADT: 294,000
MARENGO AVE
UnknownOver: ROUTE 210
07-LA-210-R25.54-PAS, Los Angeles, CA
Built 1976 ADT: 294,000
LOS ROBLES AVE
UnknownOver: ROUTE 210
07-LA-210-R25.81-PAS, Los Angeles, CA
Built 1976 ADT: 294,000
EL MOLINO AVE
UnknownOver: ROUTE 210
07-LA-210-R26.07-PAS, Los Angeles, CA
Built 1976 ADT: 294,000
LAKE AVE
UnknownOver: ROUTE 210
07-LA-210-R26.33-PAS, Los Angeles, CA
Built 1976 ADT: 294,000
WILSON AVE
UnknownOver: ROUTE 210
07-LA-210-R26.57-PAS, Los Angeles, CA
Built 1976 ADT: 294,000
INTERSTATE 210 WB
UnknownOver: ALTADENA DR
07-LA-210-R28.25-PAS, Los Angeles, CA
Built 1976 ADT: 60,500
INTERSTATE 210 EB
UnknownOver: ALTADENA DR
07-LA-210-R28.25-PAS, Los Angeles, CA
Built 1976 ADT: 22,720
INTERSTATE 210 WB
UnknownOver: SIERRA MADRE BLVD
07-LA-210-R28.46-PAS, Los Angeles, CA
Built 1976 ADT: 60,500
INTERSTATE 210 EB
UnknownOver: SIERRA MADRE BLVD
07-LA-210-R28.46-PAS, Los Angeles, CA
Built 1976 ADT: 67,200
INTERSTATE 210 WB
UnknownOver: SUNNYSLOPE AVE
07-LA-210-R28.73-PAS, Los Angeles, CA
Built 1976 ADT: 67,200
INTERSTATE 210 EB
UnknownOver: SUNNYSLOPE AVE
07-LA-210-R28.73-PAS, Los Angeles, CA
Built 1976 ADT: 32,000
ROSEMONT AVE
UnknownOver: ROUTE 210
07-LA-210-R17.72, Los Angeles, CA
Built 1972 ADT: 166,000
PICKENS CYN FLM OC
UnknownOver: SR 210
07-LA-210-R17.79, Los Angeles, CA
Built 1972 ADT: 147,000
HALLS CYN FLUME OC
UnknownOver: SR 210
07-LA-210-R18.14, Los Angeles, CA
Built 1972 ADT: 147,000
OCEAN VIEW BLVD
UnknownOver: INTERSTATE 210
07-LA-210-R18.22, Los Angeles, CA
Built 1972 ADT: 186,000
LA CRESCENTA AVE
UnknownOver: ROUTE 210
07-LA-210-R17.38, Los Angeles, CA
Built 1972 ADT: 166,000
ROUTE 90
UnknownOver: CENTINELA AVE
07-LA-090-R1.72-LA, Los Angeles, CA
Built 1972 ADT: 17,000
STATE ROUTE 134
UnknownOver: I-710, STREET & CONN
07-LA-134-R13.24-PAS, Los Angeles, CA
Built 1975 ADT: 6,550
E134-W210 CONNECTR
UnknownOver: 210,710,134 & CONN
07-LA-134-R13.25-PAS, Los Angeles, CA
Built 1974 ADT: 220,000
BRIGGS AVENUE
UnknownOver: INTERSTATE 210
07-LA-210-R18.01, Los Angeles, CA
Built 1972 ADT: 186,000
RAMSDELL AVE
UnknownOver: ROUTE 210
07-LA-210-R17.09, Los Angeles, CA
Built 1972 ADT: 166,000
E134-FAIR OAKS AVE
UnknownOver: N710-E210 CONNECTOR
07-LA-210-R25.12-PAS, Los Angeles, CA
Built 1974 ADT: 295,000
STATE ROUTE 118 WB
UnknownOver: INTERSTATE 5
07-LA-118-R11.42L-LA, Los Angeles, CA
Built 1976 ADT: 291,000
STATE ROUTE 118 EB
UnknownOver: INTERSTATE 5
07-LA-118-R11.42R-LA, Los Angeles, CA
Built 1976 ADT: 291,000
LAUREL CYN BL ON R
UnknownOver: ROUTE 5
07-LA-118-R11.42L-LA, Los Angeles, CA
Built 1976 ADT: 291,000
LAUREL CYN BL OFF
UnknownOver: ROUTE 5
07-LA-118-R11.43R-LA, Los Angeles, CA
Built 1976 ADT: 275,825
W118-S5 CONNECTOR
UnknownOver: ROUTES 5 & 118,LAUREL CY
07-LA-118-R11.52L-LA, Los Angeles, CA
Built 1976 ADT: 133,500
E118-S5 CONN
UnknownOver: PAXTON ON/OFF RA, CHAN
07-LA-118-R11.41R-LA, Los Angeles, CA
Built 1976 ADT: 28,084
N5-W118 CONNECTOR
UnknownOver: I 5 & SR 118,CONNS,WASH
07-LA-005-39.31-LA, Los Angeles, CA
Built 1976 ADT: 276,650
S5-E118 CONNECTOR
UnknownOver: ROUTES 5 & 118, & CONNS
07-LA-005-39.36-LA, Los Angeles, CA
Built 1976 ADT: 133,798
Showing 2,451-2,500 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |