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
W210-N5 CONNECTOR
UnknownOver: I 5 TRUCK NBND
07-LA-210-R0.02-LA, Los Angeles, CA
Built 1971 ADT: 17,800
N57-W210 CONNECTOR
UnknownOver: W210-S57 CONNECTOR RAMP
07-LA-057-R11.65L-GDR, Los Angeles, CA
Built 1971 ADT: 22,000
STATE ROUTE 210
UnknownOver: AMELIA AVENUE
07-LA-210-R44.71-GDR, Los Angeles, CA
Built 1970 ADT: 3,500
AMELIA AVE
UnknownOver: W210-S57 CONNECTOR RAMP
07-LA-210-R44.72-GDR, Los Angeles, CA
Built 1970 ADT: 29,500
STATE ROUTE 57
UnknownOver: COVINA BLVD
07-LA-057-R10.27-SDMS, Los Angeles, CA
Built 1971 ADT: 7,000
E&W10-S57 CONN
UnknownOver: SAN JOSE WASH, CAMPUS DR
07-LA-010-42.34-POM, Los Angeles, CA
Built 1972 ADT: 99
STATE ROUTE 71 WB
UnknownOver: I 10 & CONN
07-LA-071-R0.52-POM, Los Angeles, CA
Built 1972 ADT: 247,000
STATE ROUTE 71 EB
UnknownOver: I 10 & CONN
07-LA-071-R0.52-POM, Los Angeles, CA
Built 1972 ADT: 11,300
E10-S71 CONNECTOR
UnknownOver: N57-E10 CONNECTOR RAMP
07-LA-010-42.53-POM, Los Angeles, CA
Built 1972 ADT: 32,000
S57-E10 CONNECTOR
UnknownOver: N57-E10 CONNECTOR RAMP
07-LA-057-R7.72-POM, Los Angeles, CA
Built 1972 ADT: 32,000
VIA VERDE
UnknownOver: STATE ROUTE 57
07-LA-057-R8.71-SDMS, Los Angeles, CA
Built 1971 ADT: 158,000
STATE ROUTE 57
UnknownOver: INTERSTATE 10 & E10-S71
07-LA-057-R7.66-POM, Los Angeles, CA
Built 1972 ADT: 17,900
E10-N57 CONNECTOR
UnknownOver: INTERSTATE 10 AND RAMPS
07-LA-010-42.44-POM, Los Angeles, CA
Built 1972 ADT: 15,000
S57-E10 CONNECTOR
UnknownOver: I 10 & N71-W10 CONNECTOR
07-LA-057-R7.72-SDMS, Los Angeles, CA
Built 1972 ADT: 189,000
N57-W10 CONNECTOR
UnknownOver: INTERSTATE 10 & CONNS
07-LA-057-R7.66-POM, Los Angeles, CA
Built 1972 ADT: 13,800
W10-S57 CONNECTOR
UnknownOver: INTERSTATE 10 AND RAMPS
07-LA-010-42.45-POM, Los Angeles, CA
Built 1972 ADT: 15,000
STATE ROUTE 57
UnknownOver: SAN DIMAS AVENUE
07-LA-057-R9.82-SDMS, Los Angeles, CA
Built 1971 ADT: 6,300
W210-FOOTHILL OFF
UnknownOver: FOOTHILL BL-W210 ON RAMP
07-LA-210-R29.65, Los Angeles, CA
Built 1971 ADT: 7,700
ROCKVALE AVE POC
UnknownOver: INTERSTATE 210
07-LA-210-R40.25-AZU, Los Angeles, CA
Built 1969 ADT: 250,000
E210-S57 CONNECTOR
UnknownOver: SAN DIMAS CH, LONE HILL
07-LA-210-R44.20-GDR, Los Angeles, CA
Built 1970 ADT: 19,600
INTERSTATE 210 WB
UnknownOver: FOOTHILL BLVD
07-LA-210-R0.43-LA, Los Angeles, CA
Built 1971 ADT: 2,800
INTERSTATE 210 EB
UnknownOver: FOOTHILL BLVD
07-LA-210-R0.43-LA, Los Angeles, CA
Built 1971 ADT: 2,800
INTERSTATE 210 WB
UnknownOver: YARNELL STREET
07-LA-210-R0.84-LA, Los Angeles, CA
Built 1970 ADT: 2,100
INTERSTATE 210 EB
UnknownOver: YARNELL STREET
07-LA-210-R0.84-LA, Los Angeles, CA
Built 1970 ADT: 2,100
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 2
07-LA-002-R17.52-LA, Los Angeles, CA
Built 1976 ADT: 143,000
W210-FOOTHILL OFF
UnknownOver: MICHILLINDA AVE & ONRAMP
07-LA-210-R29.81-ADA, Los Angeles, CA
Built 1971 ADT: 6,800
E210-COLORADO OFF
UnknownOver: ROSEMEAD BL-E210 ON RAMP
07-LA-210-R29.66, Los Angeles, CA
Built 1971 ADT: 2,800
CERRITOS AVENUE
UnknownOver: INTERSTATE 210
07-LA-210-R40.07-AZU, Los Angeles, CA
Built 1969 ADT: 250,000
CITRUS AVENUE
UnknownOver: INTERSTATE 210
07-LA-210-R40.60-AZU, Los Angeles, CA
Built 1969 ADT: 250,000
STATE ROUTE 47 WB
UnknownOver: PACIFIC AVE
07-LA-047-R0.17-LA, Los Angeles, CA
Built 1970 ADT: 17,200
STATE ROUTE 47 EB
UnknownOver: PACIFIC AVE
07-LA-047-R0.17-LA, Los Angeles, CA
Built 1970 ADT: 17,200
INTERSTATE 605 SB
UnknownOver: SAN GABRIEL RIVER
07-LA-605-22.68-IRW, Los Angeles, CA
Built 1970 ADT: 1,000
INTERSTATE 605 NB
UnknownOver: SAN GABRIEL RIVER
07-LA-605-22.69-IRW, Los Angeles, CA
Built 1970 ADT: 1,000
UP RR
UnknownOver: ST RTE 138 (FT TEJON RD)
07-LA-138-51.06, Los Angeles, CA
Built 1967 ADT: 37,000
GRAHAM ACCESS
UnknownOver: INTERSTATE 605
07-LA-605-23.32-IRW, Los Angeles, CA
Built 1970 ADT: 176,000
LIVE OAK AVE
UnknownOver: INTERSTATE 605
07-LA-605-23.52-IRW, Los Angeles, CA
Built 1970 ADT: 134,000
ARROW HWY
UnknownOver: INTERSTATE 605
07-LA-605-23.96-IRW, Los Angeles, CA
Built 1970 ADT: 134,000
INTERSTATE 210 WB
UnknownOver: ALLEN AVE
07-LA-210-R27.41-PAS, Los Angeles, CA
Built 1976 ADT: 23,500
INTERSTATE 210 EB
UnknownOver: ALLEN AVE
07-LA-210-R27.41-PAS, Los Angeles, CA
Built 1976 ADT: 23,500
INTERSTATE 210 WB
UnknownOver: CRAIG AVE
07-LA-210-R27.81-PAS, Los Angeles, CA
Built 1976 ADT: 4,240
INTERSTATE 210 EB
UnknownOver: CRAIG AVE
07-LA-210-R27.81-PAS, Los Angeles, CA
Built 1976 ADT: 4,240
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 110
07-LA-110-R0.75-LA, Los Angeles, CA
Built 1970 ADT: 44,250
INTERSTATE 210
UnknownOver: GRAND AVENUE
07-LA-210-R41.59-GDR, Los Angeles, CA
Built 1969 ADT: 19,500
BARRANCA AVENUE
UnknownOver: INTERSTATE 210
07-LA-210-R41.11-GDR, Los Angeles, CA
Built 1969 ADT: 250,000
GALANTO AVE POC
UnknownOver: INTERSTATE 210
07-LA-210-R40.92-AZU, Los Angeles, CA
Built 1969 ADT: 250,000
STATE ROUTE 71
UnknownOver: RIDGEWAY STREET
07-LA-071-R0.92-POM, Los Angeles, CA
Built 1972 ADT: 8,500
LOWER AZUSA ROAD
UnknownOver: INTERSTATE 605
07-LA-605-22.15-IRW, Los Angeles, CA
Built 1971 ADT: 180,000
CAMPUS ROAD
UnknownOver: I 10,CONN,RMPS,METRO,BUS
07-LA-010-21.00-MONP, Los Angeles, CA
Built 1972 ADT: 6,800
MCBEAN PKWY OC
UnknownOver: ROUTE 5
07-LA-005-R51.44, Los Angeles, CA
Built 1968 ADT: 193,152
MOVIE LANE
UnknownOver: SR 118
07-LA-118-R1.47, Los Angeles, CA
Built 1968 ADT: 155,000
Showing 2,301-2,350 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 |