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
AVENUE "H"
UnknownOver: ROUTE 14
07-LA-014-R69.99-LAN, Los Angeles, CA
Built 1968 ADT: 43,500
GRAND AVE
UnknownOver: STATE ROUTE 60
07-LA-060-R24.45-DMBR, Los Angeles, CA
Built 1970 ADT: 223,000
WILMINGTON AVE
UnknownOver: STATE ROUTE 91
07-LA-091-R9.15-COM, Los Angeles, CA
Built 1974 ADT: 205,000
INTERSTATE 210
UnknownOver: HUNTINGTON DRIVE
07-LA-210-R32.89-MNRO, Los Angeles, CA
Built 1967 ADT: 12,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 5
07-LA-005-14.57, Los Angeles, CA
Built 1967 ADT: 263,160
GLENDALE AVE
UnknownOver: STATE ROUTE 134 & RAMPS
07-LA-134-R7.87-GNDL, Los Angeles, CA
Built 1968 ADT: 234,000
LACMTA & BNSF RY
UnknownOver: INTERSTATE 210
07-LA-210-R38.35-AZU, Los Angeles, CA
Built 1968 ADT: 250,000
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 134 & RAMPS
07-LA-134-R8.04-GNDL, Los Angeles, CA
Built 1968 ADT: 234,000
ZACHARY PADILLA AV
UnknownOver: ROUTE 210
07-LA-210-R38.58-AZU, Los Angeles, CA
Built 1968 ADT: 250,000
IRWINDALE AVENUE
UnknownOver: ROUTE 210
07-LA-210-R37.86-IRW, Los Angeles, CA
Built 1968 ADT: 266,000
INTERSTATE 210
UnknownOver: MAYFLOWER AVENUE
07-LA-210-R33.40-MNRO, Los Angeles, CA
Built 1967 ADT: 3,500
INTERSTATE 210
UnknownOver: S AZUSA AVE
07-LA-210-R39.58-AZU, Los Angeles, CA
Built 1968 ADT: 23,500
AZUSA-E210 ON RAMP
UnknownOver: S AZUSA AVE
07-LA-210-R39.58-AZU, Los Angeles, CA
Built 1968 ADT: 23,500
VERNON AVENUE
UnknownOver: ROUTE 210
07-LA-210-R38.96-AZU, Los Angeles, CA
Built 1968 ADT: 250,000
INTERSTATE 210
UnknownOver: COLORADO,2ND,SANTA ANITA
07-LA-210-R32.20-ADA, Los Angeles, CA
Built 1968 ADT: 15,500
INTERSTATE 210
UnknownOver: FIRST AVENUE
07-LA-210-R32.08-ADA, Los Angeles, CA
Built 1968 ADT: 4,000
INTERSTATE 210
UnknownOver: SANTA ANITA AVENUE
07-LA-210-R31.88-ADA, Los Angeles, CA
Built 1968 ADT: 29,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 210
07-LA-210-R35.07-DRT, Los Angeles, CA
Built 1967 ADT: 258,000
MOUNTAIN ST
UnknownOver: SR 2
07-LA-002-R20.05-GNDL, Los Angeles, CA
Built 1975 ADT: 115,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 210
07-LA-210-R3.57-LA, Los Angeles, CA
Built 1969 ADT: 76,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 210
07-LA-210-R4.70-LA, Los Angeles, CA
Built 1969 ADT: 76,000
STATE ROUTE 60
UnknownOver: DIAMOND BAR
07-LA-060-R25.56-DMBR, Los Angeles, CA
Built 1970 ADT: 7,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 210
07-LA-210-R39.12-AZU, Los Angeles, CA
Built 1968 ADT: 250,000
HARVEY DRIVE
UnknownOver: S2-W134 CONNECTOR RAMP
07-LA-002-R18.92-GNDL, Los Angeles, CA
Built 1967 ADT: 14,700
I 5 SB
UnknownOver: I 5 & CASTAIC ROAD
07-LA-005-R59.95L, Los Angeles, CA
Built 1969 ADT: 36,657
I 5 NB
UnknownOver: I 5 SB
07-LA-005-R64.49R, Los Angeles, CA
Built 1970 ADT: 36,657
ROUTE 60
UnknownOver: E60-N57 CONNECTOR RAMP
07-LA-060-R25.45-DMBR, Los Angeles, CA
Built 1970 ADT: 131,000
E134-2 CONNECTOR
UnknownOver: ROUTES 134 & 2,3 STREETS
07-LA-134-R8.57-GNDL, Los Angeles, CA
Built 1967 ADT: 250,000
PARKER RD
UnknownOver: ROUTE 5
07-LA-005-R59.01, Los Angeles, CA
Built 1968 ADT: 74,354
INTERSTATE 210 WB
UnknownOver: BALDWIN AVENUE
07-LA-210-R30.82-ADA, Los Angeles, CA
Built 1971 ADT: 25,000
INTERSTATE 210 EB
UnknownOver: BALDWIN AVENUE
07-LA-210-R30.82-ADA, Los Angeles, CA
Built 1971 ADT: 25,000
HUNTINGTON DR-E210
UnknownOver: ROUTE 210
07-LA-210-R36.38-IRW, Los Angeles, CA
Built 1968 ADT: 6,000
SR 2
UnknownOver: COLORADO BLVD
07-LA-002-R18.52-LA, Los Angeles, CA
Built 1976 ADT: 18,000
E2-E134 CONNECTOR
UnknownOver: COLORADO BLVD
07-LA-002-R18.52-LA, Los Angeles, CA
Built 1976 ADT: 18,000
ROUTE 2
UnknownOver: BROADWAY UC
07-LA-002-R18.65-LA, Los Angeles, CA
Built 1976 ADT: 21,420
W134-S2 CONNECTOR
UnknownOver: RTE 2,BROADWAY,COLORADO
07-LA-134-R9.04-LA, Los Angeles, CA
Built 1976 ADT: 12,000
STATE ROUTE 134
UnknownOver: STATE ROUTE 2 & RAMP
07-LA-134-R8.96-LA, Los Angeles, CA
Built 1971 ADT: 148,125
HARVEY-E2 ON RAMP
UnknownOver: STATE ROUTE 2 & RAMP
07-LA-134-R8.97-LA, Los Angeles, CA
Built 1971 ADT: 18,285
E2-W134 CONNECTOR
UnknownOver: ROUTE 2 & CONNECTOR RAMP
07-LA-002-R18.82-LA, Los Angeles, CA
Built 1971 ADT: 8,841
W2-E134 CONNECTOR
UnknownOver: ROUTES 134 & 2, & CONNS
07-LA-002-R18.81-LA, Los Angeles, CA
Built 1971 ADT: 18,261
MACARTHUR
UnknownOver: INTERSTATE 110
07-LA-110-R1.06-LA, Los Angeles, CA
Built 1970 ADT: 30,000
INTERSTATE 605 SB
UnknownOver: ROUTE 210
07-LA-605-25.75-IRW, Los Angeles, CA
Built 1968 ADT: 258,000
INTERSTATE 605 NB
UnknownOver: ROUTE 210
07-LA-605-25.75-IRW, Los Angeles, CA
Built 1968 ADT: 258,000
INTERSTATE 210 WB
UnknownOver: ROXFORD STREET
07-LA-210-R1.92-LA, Los Angeles, CA
Built 1969 ADT: 4,200
INTERSTATE 210 EB
UnknownOver: ROXFORD STREET
07-LA-210-R1.92-LA, Los Angeles, CA
Built 1969 ADT: 4,200
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 210
07-LA-210-R3.01-LA, Los Angeles, CA
Built 1969 ADT: 76,000
BLEDSOE ST OC
UnknownOver: INTERSTATE 210
07-LA-210-R2.74-LA, Los Angeles, CA
Built 1969 ADT: 82,000
SAYRE ST OC
UnknownOver: INTERSTATE 210
07-LA-210-R3.84-LA, Los Angeles, CA
Built 1969 ADT: 76,000
HUBBARD ST
UnknownOver: INTERSTATE 210
07-LA-210-R4.11-LA, Los Angeles, CA
Built 1969 ADT: 76,000
STATE ROUTE 57
UnknownOver: VALLEY BLVD
07-LA-057-R7.14-POM, Los Angeles, CA
Built 1972 ADT: 10,000
Showing 2,201-2,250 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 |