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
IMPERIAL HWY-N405
UnknownOver: W105-N405 CONNECTOR RAMP
07-LA-405-R21.32-LA, Los Angeles, CA
Built 1989 ADT: 20,000
ROUTE 105 & LRT
UnknownOver: INGLEWOOD AVE
07-LA-105-R2.53-HAW, Los Angeles, CA
Built 1993 ADT: 16,320
W105-N&S 405 CONN
UnknownOver: INGLEWOOD AVE
07-LA-105-R2.53-HAW, Los Angeles, CA
Built 1993 ADT: 16,320
S405-W105 CONNECTR
UnknownOver: IMPERIAL,LA CIENEGA,RAMP
07-LA-405-R21.42-LA, Los Angeles, CA
Built 1994 ADT: 2,500
N405-CENTURY BL OF
UnknownOver: E105-N405 & W105-N405 RP
07-LA-405-R21.28-LA, Los Angeles, CA
Built 1989 ADT: 4,000
N405-W105 CONN OC
UnknownOver: I 405,I 105, CONN
07-LA-405-R21.01-LA, Los Angeles, CA
Built 1991 ADT: 176,000
N&S405-W105 CONN
UnknownOver: IMPERIAL ON & OFF-RAMPS
07-LA-405-R21.18-LA, Los Angeles, CA
Built 1989 ADT: 15,000
S405-E105 CONNECTR
UnknownOver: I 405 & I 105, CONNS
07-LA-405-R21.51-HAW, Los Angeles, CA
Built 1991 ADT: 2,000
ROUTE 105 & LRT
UnknownOver: ATLANTIC AVE
07-LA-105-R12.88-LYN, Los Angeles, CA
Built 1990 ADT: 23,000
N710-E105 CONNECTO
UnknownOver: LOS ANGELES RIVER
07-LA-710-R15.44-LYN, Los Angeles, CA
Built 1992 ADT: 3,500
STATE ROUTE 91
UnknownOver: AVALON BLVD
07-LA-091-R7.44-CRSN, Los Angeles, CA
Built 1974 ADT: 26,000
CENTRAL AVE
UnknownOver: STATE ROUTE 91
07-LA-091-R8.43-CRSN, Los Angeles, CA
Built 1974 ADT: 202,600
WHITE OAK AVENUE O
UnknownOver: ROUTE 118
07-LA-118-R6.80-LA, Los Angeles, CA
Built 1980 ADT: 222,000
ENCINO AVE
UnknownOver: STATE ROUTE 118
07-LA-118-R7.05-LA, Los Angeles, CA
Built 1980 ADT: 222,000
LOUISE AVENUE
UnknownOver: STATE ROUTE 118
07-LA-118-R7.30-LA, Los Angeles, CA
Built 1980 ADT: 222,000
ROUTE 105 & LRT
UnknownOver: SAN PEDRO STREET
07-LA-105-R8.04-LA, Los Angeles, CA
Built 1985 ADT: 9,300
ROUTE 105 & LRT
UnknownOver: AVALON BLVD
07-LA-105-R8.29-LA, Los Angeles, CA
Built 1988 ADT: 20,200
ROUTE 105 & LRT
UnknownOver: CENTRAL AVENUE
07-LA-105-R8.94-LA, Los Angeles, CA
Built 1987 ADT: 21,500
ROUTE 105 & LRT
UnknownOver: SUCCESS AVENUE
07-LA-105-R9.21-COM, Los Angeles, CA
Built 1987 ADT: 2,300
ROUTE 105 & LRT
UnknownOver: COMPTON AVENUE
07-LA-105-R9.38-COM, Los Angeles, CA
Built 1988 ADT: 11,500
WB 105 & LRT
UnknownOver: WILLOWBROOK AVE,LRT,UPRR
07-LA-105-R9.78-COM, Los Angeles, CA
Built 1989 ADT: 3,570
EB 105 & LRT
UnknownOver: WILMINGTON AVE,LRT,UP RR
07-LA-105-R9.78-COM, Los Angeles, CA
Built 1989 ADT: 3,000
ROUTE 105 & LRT
UnknownOver: UP RR, ALAMEDA, MONA,
07-LA-105-R10.25-LYN, Los Angeles, CA
Built 1993 ADT: 5,100
ROUTE 105 & LRT
UnknownOver: LONG BEACH BLVD
07-LA-105-R11.56-LYN, Los Angeles, CA
Built 1988 ADT: 26,000
LONG BEACH-W105 ON
UnknownOver: LONG BEACH BLVD
07-LA-105-R11.56-LYN, Los Angeles, CA
Built 1988 ADT: 25,000
LONG BEACH-E105 ON
UnknownOver: LONG BEACH BLVD
07-LA-105-R11.56-LYN, Los Angeles, CA
Built 1988 ADT: 25,000
ROUTE 105 & LRT
UnknownOver: FIR STREET
07-LA-105-R11.91-LYN, Los Angeles, CA
Built 1987 ADT: 800
LONG BEACH-E105 ON
UnknownOver: FIR STREET
07-LA-105-R11.91-LYN, Los Angeles, CA
Built 1987 ADT: 900
ROUTE 105 & LRT
UnknownOver: BULLIS ROAD
07-LA-105-R12.07-LYN, Los Angeles, CA
Built 1987 ADT: 4,450
ROUTE 105 & LRT
UnknownOver: GERTRUDE DRIVE
07-LA-105-R12.30-LYN, Los Angeles, CA
Built 1987 ADT: 1,050
ROUTE 105 & LRT
UnknownOver: HARRIS AVE
07-LA-105-R12.58-LYN, Los Angeles, CA
Built 1987 ADT: 2,220
RINALDI ST
UnknownOver: SR 118
07-LA-118-R3.13-LA, Los Angeles, CA
Built 1980 ADT: 222,000
MASON AVE
UnknownOver: SR 118
07-LA-118-R3.32-LA, Los Angeles, CA
Built 1980 ADT: 222,000
PORTER RANCH DRIVE
UnknownOver: SR 118
07-LA-118-R3.86-LA, Los Angeles, CA
Built 1980 ADT: 222,000
CORBIN AVE
UnknownOver: STATE ROUTE 118
07-LA-118-R4.29-LA, Los Angeles, CA
Built 1980 ADT: 222,000
W10 BUSWAY
UnknownOver: I 710 & S710-W10 CONN
07-LA-010S-21.35-MONP, Los Angeles, CA
Built 1974 ADT: 5,000
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 5
07-LA-005-7.83-DNY, Los Angeles, CA
Built 1972 ADT: 234,600
E10 BUSWAY
UnknownOver: WB 10 & SB 710 CONNECTOR
07-LA-010S-21.53-ALH, Los Angeles, CA
Built 1974 ADT: 3,000
WILBUR AVE
UnknownOver: STATE ROUTE 118
07-LA-118-R5.20-LA, Los Angeles, CA
Built 1980 ADT: 222,000
RESEDA BLVD
UnknownOver: ROUTE 118
07-LA-118-R5.81-LA, Los Angeles, CA
Built 1980 ADT: 222,000
ETIWANDA AVE POC
UnknownOver: STATE ROUTE 118
07-LA-118-R6.03-LA, Los Angeles, CA
Built 1980 ADT: 222,000
CHIMINEAS AVE
UnknownOver: ROUTE 118
07-LA-118-R6.23-LA, Los Angeles, CA
Built 1980 ADT: 222,000
ZELZAH AVE
UnknownOver: STATE ROUTE 118
07-LA-118-R6.58-LA, Los Angeles, CA
Built 1980 ADT: 222,000
PEDESTRIAN WALKWAY
UnknownOver: ROUTE 105 & LRT
07-LA-105-R3.84-HAW, Los Angeles, CA
Built 1993 ADT: 107,100
PRAIRIE AVE
UnknownOver: ROUTE 105 & LRT
07-LA-105-R3.62-HAW, Los Angeles, CA
Built 1993 ADT: 2,550
ROUTE 105 & LRT
UnknownOver: CRENSHAW BLVD
07-LA-105-R4.73-ING, Los Angeles, CA
Built 1992 ADT: 30,600
VAN NESS AVE
UnknownOver: ROUTE 105 & LRT
07-LA-105-R5.23-HAW, Los Angeles, CA
Built 1988 ADT: 107,100
WILTON PLACE
UnknownOver: ROUTE 105 & LRT
07-LA-105-R5.48-HAW, Los Angeles, CA
Built 1988 ADT: 224,400
WESTERN AVE
UnknownOver: ROUTE 105 & LRT
07-LA-105-R5.74, Los Angeles, CA
Built 1988 ADT: 224,400
NORMANDIE AVE
UnknownOver: ROUTE 105 & LRT
07-LA-105-R6.25, Los Angeles, CA
Built 1986 ADT: 224,400
Showing 2,551-2,600 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 |