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 86 SB
FairOver: CAMPBELL WASH
11-IMP-086-51.88, Imperial, CA
Built 1989 Load: 32.4 t ADT: 5,600
STATE ROUTE 86 SB
FairOver: DEEP WASH
11-IMP-086-R35.16, Imperial, CA
Built 1997 Load: 32.4 t ADT: 7,350
STATE ROUTE 86 SB
FairOver: LONE TREE WASH
11-IMP-086-R37.23, Imperial, CA
Built 1997 Load: 32.4 t ADT: 7,350
STATE ROUTE 86 SB
FairOver: WILLOW WASH
11-IMP-086-R39.01, Imperial, CA
Built 1997 Load: 32.4 t ADT: 7,350
STATE ROUTE 86 SB
FairOver: ALFALFA DITCH
11-IMP-086-R40.04, Imperial, CA
Built 1997 Load: 32.4 t ADT: 6,150
STATE ROUTE 86 SB
FairOver: LUPIN WASH
11-IMP-086-50.84, Imperial, CA
Built 1989 Load: 32.4 t ADT: 5,600
STATE ROUTE 86 SB
FairOver: PALM WASH
11-IMP-086-58.24, Imperial, CA
Built 1989 Load: 32.4 t ADT: 7,300
STATE ROUTE 86 SB
FairOver: CORAL WASH
11-IMP-086-59.18, Imperial, CA
Built 1989 Load: 32.4 t ADT: 7,300
STATE ROUTE 86 SB
FairOver: GRAVEL WASH
11-IMP-086-59.77, Imperial, CA
Built 1989 Load: 32.4 t ADT: 7,300
STATE ROUTE 86 SB
FairOver: ELECTRA DITCH
11-IMP-086-61.70, Imperial, CA
Built 1990 Load: 32.4 t ADT: 7,300
STATE ROUTE 86 SB
FairOver: INCIENSO DITCH
11-IMP-086-63.34, Imperial, CA
Built 1990 Load: 32.4 t ADT: 7,300
STATE ROUTE 86 SB
FairOver: GODETIA DITCH
11-IMP-086-64.10, Imperial, CA
Built 1990 Load: 32.4 t ADT: 7,200
STATE ROUTE 86 SB
FairOver: MATIS DITCH
11-IMP-086-64.63, Imperial, CA
Built 1990 Load: 32.4 t ADT: 7,200
STATE ROUTE 86 SB
FairOver: AMBIG DITCH
11-IMP-086-64.75, Imperial, CA
Built 1990 Load: 32.4 t ADT: 7,200
STATE ROUTE 86 SB
FairOver: ROMNEY DITCH
11-IMP-086-64.83, Imperial, CA
Built 1990 Load: 32.4 t ADT: 7,200
STATE ROUTE 86 SB
FairOver: COOLIDGE SPRINGS DITCH
11-IMP-086-65.35, Imperial, CA
Built 1990 Load: 32.4 t ADT: 7,200
STATE ROUTE 111
FairOver: ALKY WASH
11-IMP-111-50.79, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
FairOver: PIKE WASH
11-IMP-111-41.56, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,650
STATE ROUTE 111
FairOver: WIND WASH
11-IMP-111-41.62, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,650
INTERSTATE 8
FairOver: NEW RIVER
11-IMP-008-R29.70, Imperial, CA
Built 1967 Load: 32.4 t ADT: 12,200
INTERSTATE 8 EB
FairOver: MYER CREEK
11-IMP-008-R5.19R, Imperial, CA
Built 1964 Load: 32.4 t ADT: 7,105
STATE ROUTE 111
FairOver: FRINK WASH OVERFLOW
11-IMP-111-52.33, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
FairOver: LUENTO WASH
11-IMP-111-52.80, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
FairOver: KEN WASH
11-IMP-111-55.77, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
INTERSTATE 8 WB
FairOver: COLORADO RI,UP RR,AMTRAK
11-IMP-008-R96.81, Imperial, CA
Built 1978 Load: 32.4 t ADT: 8,350
STATE ROUTE 78 WB
FairOver: BRAWLEY OH
11-IMP-078-R13.10, Imperial, CA
Built 2011 Load: 32.4 t ADT: 6,800
INTERSTATE 8
FairOver: EAST COYOTE WASH
11-IMP-008-R18.88, Imperial, CA
Built 1968 Load: 32.4 t ADT: 12,523
INTERSTATE 8
FairOver: EAST COYOTE WASH
11-IMP-008-R20.51, Imperial, CA
Built 1968 Load: 32.4 t ADT: 12,200
HUNT ROAD
FairOver: ALAMO RIVER
0.9MI W/O BONDS CORNER RD, Imperial, CA
Built 1971 Load: 32.4 t ADT: 125
EVAN HEWES HWY
FairOver: NEW RIVER
0.63 MI W/O DREW RD, Imperial, CA
Built 1964 Load: 32.4 t ADT: 1,095
EVAN HEWES HWY
FairOver: CENTRAL MAIN CANAL
25 FT E/O AUSTIN RD, Imperial, CA
Built 1940 Load: 32.4 t ADT: 10,500
WORTHINGTON RD
FairOver: NEW RIVER
3.6 MI W/O FORRESTER RD, Imperial, CA
Built 1989 Load: 32.4 t ADT: 850
WORTHINGTON RD
FairOver: ALAMO RIVER
1.6 MI W/O SR-115, Imperial, CA
Built 1991 Load: 32.4 t ADT: 2,000
SHANK ROAD
FairOver: ALAMO RIVER
1.1 MI W/O SR 115, Imperial, CA
Built 1992 Load: 32.4 t ADT: 1,000
HOVLEY RD
FairOver: NEW RIVER
0.28 MI S/O SR 78 EXPWY, Imperial, CA
Built 1989 Load: 32.4 t ADT: 3,500
ARNOLD RD
FairOver: RESERVATION MAIN DRAIN
0.6 MI W/O PICACHO RD, Imperial, CA
Built 1988 Load: 32.4 t ADT: 1,000
ARNOLD RD
FairOver: YUMA MAIN CANAL
0.7 MI W/O PICACHO RD, Imperial, CA
Built 1987 Load: 32.4 t ADT: 1,000
NORRISH ROAD
FairOver: EAST HIGHLINE CANAL
1.3 MI E/O HIGHLINE RD, Imperial, CA
Built 1998 Load: 32.4 t ADT: 212
BOYD ROAD
FairOver: HOLTVILLE MAIN DRAIN
0.9 MI E/O HOLT RD, Imperial, CA
Built 1998 Load: 32.4 t ADT: 86
ENGLISH ROAD
FairOver: Z DRAIN
1.5 MI N/O SR 111, Imperial, CA
Built 2014 Load: 32.4 t ADT: 200
LACK ROAD
FairOver: NEW RIVER
4.34 MI N/O SR-78/86, Imperial, CA
Built 2022 Load: 32.4 t ADT: 590
ACCESS RD/BROWN RD
FairOver: COYOTE WASH
1.9 MI N/O EVAN HEWES HWY, Imperial, CA
Built 1991 Load: 32.4 t ADT: 200
U.S. HIGHWAY 395
FairOver: NORTH FORK BISHOP CREEK
09-INY-395-117.61-BIS, Inyo, CA
Built 1971 Load: 32.4 t ADT: 21,550
US HIGHWAY 395 SB
FairOver: COTTONWOOD CREEK
09-INY-395-44.00, Inyo, CA
Built 2000 Load: 32.4 t ADT: 6,400
US HIGHWAY 395 NB
FairOver: COTTONWOOD CREEK
09-INY-395-44.00, Inyo, CA
Built 2000 Load: 32.4 t ADT: 6,400
LUBKEN CANYON ROAD
FairOver: LOS ANGELES AQUEDUCT
0.1 MI W OF ROUTE 395, Inyo, CA
Built 1991 Load: 32.4 t ADT: 100
PINE CREEK ROAD
FairOver: PINE CREEK
9.5 MI W OF RTE 395 JCT, Inyo, CA
Built 1984 Load: 32.4 t ADT: 200
N ROUND VALLEY RD
FairOver: PINE CREEK
0.1 MI N PINE CREEK RD, Inyo, CA
Built 1987 Load: 32.4 t ADT: 350
MANZANAR-REWARD RD
FairOver: LOS ANGELES AQUEDUCT
0.6 MI E/O RTE 395, Inyo, CA
Built 1996 Load: 32.4 t ADT: 100
MOFFAT RANCH RD
FairOver: LOS ANGELES AQUEDUCT
0.3 KM W. OF RTE 395, Inyo, CA
Built 1996 Load: 32.4 t ADT: 150
Showing 12,601-12,650 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.