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
BEAVER CREEK ROAD
FairOver: BEAVER CREEK
BEAVER, Siskiyou, CA
Built 1963 Load: 42.8 t ADT: 50
GRATON RD
FairOver: ATASCADERO CREEK
0.9 MI W SH 116, Sonoma, CA
Built 1967 Load: 42.8 t ADT: 3,409
RIVER ROAD
FairOver: GILL CREEK
2.0 MI NW OF SR 128, Sonoma, CA
Built 1962 Load: 42.8 t ADT: 367
LAWNDALE ROAD
FairOver: KERN CREEK
0.6 MI S SR 12 KENWOOD, Sonoma, CA
Built 1984 Load: 42.8 t ADT: 650
SALIDA BOULEVARD
FairOver: M.I.D. LATERAL #6
0.4 MI S/O BROADWAY, Stanislaus, CA
Built 1912 Load: 42.8 t ADT: 9,500
PASKENTA RD
FairOver: THOMES CREEK BRANCH
0.3 MI E/O SIMPSON RD, Tehama, CA
Built 1974 Load: 42.8 t ADT: 590
TULE CREEK ROAD
FairOver: TULE CREEK
3.3 MI SW OF S.R. 3, Trinity, CA
Built 1947 Load: 42.8 t ADT: 670
TRINITY DAM BLVD
FairOver: TRINITY RIVER
.2 MI S/O RUSH CREEK RD, Trinity, CA
Built 1963 Load: 42.8 t ADT: 450
U.S. HWY 101 NB
FairOver: TELEPHONE RD
07-VEN-101-25.97-VEN, Ventura, CA
Built 1961 Load: 42.8 t ADT: 57,500
OBYRNES FERRY ROAD
FairOver: TULLOCK RESERVOIR
CAL/TUO COUNTY LINE, Calaveras, CA
Built 1957 Load: 43.1 t ADT: 2,963
W MANNING AVE
FairOver: JAMES BYPASS CANAL
2.8 MI EAST OF COLORADO, Fresno, CA
Built 1957 Load: 43.1 t ADT: 2,000
STATE ROUTE 60
FairOver: SAN GABRIEL RIVER
07-LA-060-11.30-SEMT, Los Angeles, CA
Built 1967 Load: 43.1 t ADT: 228,000
VIA CAMPESINA
FairOver: OLMSTED CK
1.0MI W/O PALOS VERDES DR, Los Angeles, CA
Built 1986 Load: 43.1 t ADT: 1,122
MARSHALL ST
FairOver: RUBIO WASH
0.3MI W/O ROSEMEAD BLVD, Los Angeles, CA
Built 1953 Load: 43.1 t ADT: 8,034
BEAR VALLEY ROAD
FairOver: BURNS CREEK
4.3 MI NE HORNITOS RD, Mariposa, CA
Built 1961 Load: 43.1 t ADT: 190
INCLINE ROAD
FairOver: DRY CREEK
1.3 MI WEST OF SR 140, Mariposa, CA
Built 1970 Load: 43.1 t ADT: 150
STATE ROUTE 121
FairOver: CARNEROS CREEK
04-NAP-121-2.40, Napa, CA
Built 1954 Load: 43.1 t ADT: 27,500
STATE ROUTE 55
FairOver: BNSF RY,AMTRAK,METROLINK
12-ORA-055-R9.52-SA, Orange, CA
Built 1964 Load: 43.1 t ADT: 272,000
WB CERRITOS AVE
FairOver: COYOTE CREEK CHANNEL
0.2 MI W/O LOS ALAMITOS, Orange, CA
Built 1962 Load: 43.1 t ADT: 29,391
STATE ROUTE 70
FairOver: INDIAN CREEK
02-PLU-070-33.07, Plumas, CA
Built 1954 Load: 43.1 t ADT: 3,375
MT VERNON AVE
FairOver: LYTLE CREEK
.80 MI S OF SR 66, San Bernardino, CA
Built 1973 Load: 43.1 t ADT: 7,020
BOULDER AVE
FairOver: ELDER GULCH
1.8 MI N OF PIONEER AVE, San Bernardino, CA
Built 1949 Load: 43.1 t ADT: 8,800
NB STATE ROUTE 85
FairOver: CAHALAN AVE (FUTURE)
04-SCL-085-4.50-SJS, Santa Clara, CA
Built 1990 Load: 43.1 t ADT: 51,500
BEAR CREEK RD
FairOver: BEAR CREEK
4.3 MI NE OF SR 9, Santa Cruz, CA
Built 1960 Load: 43.1 t ADT: 2,500
DESCHUTES RD
FairOver: HAWES GULCH
150 FT S DERSCH RD, Shasta, CA
Built 1944 Load: 43.1 t ADT: 3,380
PACIFIC AVENUE
FairOver: HILLSIDE
IN JENNER, Sonoma, CA
Built 2015 Load: 43.1 t ADT: 100
NEW LA GRANGE ROAD
FairOver: M.I.D. MAIN CANAL
0.8 MI N/O SR 132, Stanislaus, CA
Built 1977 Load: 43.1 t ADT: 1,465
22S82
FairOver: 22S82/BONE CREEK
NO DATA ENTERED, Tulare, CA
Built 1958 Load: 43.1 t ADT: 174
Recreation Road
FairOver: Robles-Casitas Canal
Off Santa Ana Road, Ventura, CA
Built 1959 Load: 43.1 t ADT: 140
STATE ROUTE 118
FairOver: ERRINGER RD
07-VEN-118-R24.81-SIMV, Ventura, CA
Built 1970 Load: 43.1 t ADT: 65,000
STATE ROUTE 23
FairOver: POTRERO VALLEY CREEK
07-VEN-023-R1.93-THOK, Ventura, CA
Built 1968 Load: 43.1 t ADT: 19,000
U.S. HIGHWAY 101
FairOver: KLAMATH RIVER
01-DN-101-R4.04, Del Norte, CA
Built 1965 Load: 43.4 t ADT: 3,600
STATE ROUTE 168
FairOver: DRY CREEK
06-FRE-168-R26.30, Fresno, CA
Built 1941 Load: 43.4 t ADT: 4,300
W SIERRA AVE
FairOver: OUTSIDE CANAL
0.48 MI NE OF SR 33, Fresno, CA
Built 1987 Load: 43.4 t ADT: 225
FORT SEWARD ROAD
FairOver: DOBBYN CREEK
1.5 MI W ALDER POINT RD, Humboldt, CA
Built 1960 Load: 43.4 t ADT: 38
STATE ROUTE 86 NB
FairOver: CORAL WASH
11-IMP-086-59.18, Imperial, CA
Built 1960 Load: 43.4 t ADT: 7,300
LINDLEY AVENUE
FairOver: LOS ANGELES RIVER
0.05 MI S. VICTORY BLVD, Los Angeles, CA
Built 1957 Load: 43.4 t ADT: 29,423
38TH/41TH ST
FairOver: ACTA
E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 43.4 t ADT: 7,182
CYPRESS PL
FairOver: LA DWP AQUADUCT
0.2MI E/O SECO CN ST, Los Angeles, CA
Built 1993 Load: 43.4 t ADT: 11,119
AVENUE 18.5
FairOver: BERENDA SLOUGH
0.6 MI WEST OF ROAD 13, Madera, CA
Built 1965 Load: 43.4 t ADT: 378
SIR FRANCIS DRAKE
FairOver: WHITE'S HILL TRAIL
0.6 MI N/O BAYWOOD CYN RD, Marin, CA
Built 2002 Load: 43.4 t ADT: 3,500
FT BRAG-SHRWD RD
FairOver: SHERWOOD CREEK
2.7 MI S OF US 101, Mendocino, CA
Built 1987 Load: 43.4 t ADT: 126
SR 73 SB
FairOver: WILDLIFE PATHWAY
12-ORA-073-20.86-LGNB, Orange, CA
Built 1996 Load: 43.4 t ADT: 34,500
BUCKS LAKE ROAD
FairOver: ROCK CREEK
4.3 MI W/O SR 70, Plumas, CA
Built 1969 Load: 43.4 t ADT: 1,700
BROAD ST
FairOver: E FK SAN LUIS OBISPO CRK
SOUTH OF EL CAPITAN WAY, San Luis Obispo, CA
Built 1978 Load: 43.4 t ADT: 24,700
SINALOA DR
FairOver: OAK CREEK
0.1 MI E OF SAN YSIDRO RD, Santa Barbara, CA
Built 1973 Load: 43.4 t ADT: 426
MIDDLE BR RD
FairOver: BULLHOCK CREEK
LATOUR STATE FOREST, Shasta, CA
Built 1994 Load: 43.4 t ADT: 10
MONTECITO BLVD
FairOver: BRUSH CREEK
IN SANTA ROSA, Sonoma, CA
Built 1962 Load: 43.4 t ADT: 14,000
STATE ROUTE 118
FairOver: ERRINGER RD
07-VEN-118-R24.81-SIMV, Ventura, CA
Built 1970 Load: 43.4 t ADT: 65,000
INTERSTATE 10
FairOver: RIO HONDO
07-LA-010-28.18-EMTE, Los Angeles, CA
Built 1956 Load: 43.5 t ADT: 211,600
Showing 16,151-16,200 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.