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
WINDING ROAD
GoodOver: SILVER FORK AMER. RIVER
NO DATA ENTERED, El Dorado, CA
Built 1969 Load: 30.5 t ADT: 10
West Jayne Ave
GoodOver: San Luis Canal
2.5 mi E of SR 269, Fresno, CA
Built 1966 Load: 30.5 t ADT: 2,500
West Clarkson Road
GoodOver: San Luis Canal
2 miles East of SR 33, Fresno, CA
Built 1966 Load: 30.5 t ADT: 700
STATE ROUTE 96
GoodOver: BLUFF CREEK
01-HUM-096-28.27, Humboldt, CA
Built 1960 Load: 30.5 t ADT: 560
STATE ROUTE 96
GoodOver: KLAMATH RIVER (ORLEANS)
01-HUM-096-38.57, Humboldt, CA
Built 1966 Load: 30.5 t ADT: 990
MATTOLE RD
GoodOver: BULL CREEK
6.4 MI W/O JCT W/ SR 101, Humboldt, CA
Built 1966 Load: 30.5 t ADT: 500
22ND AVE
GoodOver: CLARKS FORK KINGS RIVER
0.2 MI N/0 GRANGEVILLE BL, Kings, CA
Built 1954 Load: 30.5 t ADT: 1,257
INTERSTATE 5
GoodOver: SONORA AVE
07-LA-005-27.54-GNDL, Los Angeles, CA
Built 1957 Load: 30.5 t ADT: 119,286
INTERSTATE 5
GoodOver: SONORA AVE
07-LA-005-27.54-GNDL, Los Angeles, CA
Built 1957 Load: 30.5 t ADT: 119,286
GLEN AVE
GoodOver: SAN JOSE CRK
0.5MI N/O HOLT AVE, Los Angeles, CA
Built 1963 Load: 30.5 t ADT: 1,020
FESTIVIDAD DR
GoodOver: DRY CYN CHAN
0.3MI W/O BOUQUET CYN RD, Los Angeles, CA
Built 1970 Load: 30.5 t ADT: 1,585
RAMONA ST
GoodOver: ALHAMBRA WASH
0.3MI N/O VALLEY BLVD, Los Angeles, CA
Built 1937 Load: 30.5 t ADT: 18,656
STATE ROUTE 140
GoodOver: MARIPOSA CREEK
10-MPA-140-21.19, Mariposa, CA
Built 1932 Load: 30.5 t ADT: 10,800
STATE ROUTE 140
GoodOver: SAN JOAQUIN RIVER
10-MER-140-11.79, Merced, CA
Built 1950 Load: 30.5 t ADT: 3,650
STATE ROUTE 59
GoodOver: MILES CREEK
10-MER-059-11.89, Merced, CA
Built 1955 Load: 30.5 t ADT: 7,700
US HIGHWAY 101 SB
GoodOver: WILD HORSE ROAD
05-MON-101-R37.31, Monterey, CA
Built 1969 Load: 30.5 t ADT: 7,950
US HIGHWAY 101 NB
GoodOver: WILD HORSE ROAD
05-MON-101-R37.31, Monterey, CA
Built 1969 Load: 30.5 t ADT: 7,950
INTERSTATE 10 EB
GoodOver: OBAN DITCH
08-RIV-010-R112.28, Riverside, CA
Built 1966 Load: 30.5 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: CACTUS WASH
08-RIV-010-R73.20, Riverside, CA
Built 1965 Load: 30.5 t ADT: 11,250
INTERSTATE 10
GoodOver: SUTRO DITCH
08-RIV-010-R118.50, Riverside, CA
Built 1966 Load: 30.5 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: SUTRO DITCH
08-RIV-010-R118.50, Riverside, CA
Built 1966 Load: 30.5 t ADT: 10,700
MAGNESIA FALLS DR
GoodOver: SAN PASCUAL CHANNEL
.7 MI E/O MONTEREY AVE, Riverside, CA
Built 2005 Load: 30.5 t ADT: 7,560
STATE ROUTE 99
GoodOver: MORRISON CREEK
03-SAC-099-20.03, Sacramento, CA
Built 1959 Load: 30.5 t ADT: 179,000
INTERSTATE 5 SB
GoodOver: LOST SLOUGH
03-SAC-005-1.04, Sacramento, CA
Built 1979 Load: 30.5 t ADT: 26,500
'Q' ST
GoodOver: NORTH CHANNEL DRY CREEK
AT 16TH ST, Sacramento, CA
Built 1959 Load: 30.5 t ADT: 3,000
KIEFER BLVD
GoodOver: FOLSOM SOUTH CANAL
0.1 MI W SUNRISE BLVD, Sacramento, CA
Built 1970 Load: 30.5 t ADT: 49,458
INTERSTATE 15 SB
GoodOver: DRY LAKE DITCH
08-SBD-015-180.93, San Bernardino, CA
Built 1963 Load: 30.5 t ADT: 19,000
STATE ROUTE 58 EB
GoodOver: AGATE ROAD
08-SBD-058-R32.96-BSW, San Bernardino, CA
Built 1997 Load: 30.5 t ADT: 6,750
PARK MOABI RD
GoodOver: BNSF RY & AMTRAK
100' N OF RTE I-40, San Bernardino, CA
Built 1966 Load: 30.5 t ADT: 522
VALLEY OF THE FALL
GoodOver: MILL CREEK
1.3 MI E OF ROUTE 38, San Bernardino, CA
Built 1977 Load: 30.5 t ADT: 1,683
INTERSTATE 905 EB
GoodOver: HOWARD LANE
11-SD-905-3.62-SD, San Diego, CA
Built 1976 Load: 30.5 t ADT: 19,500
OLD HWY 80
GoodOver: BOUNDARY CREEK
2.5 MI W/O CARIZO GORGE, San Diego, CA
Built 1931 Load: 30.5 t ADT: 1,055
JACK TONE RD
GoodOver: CALAVERAS RIVER
0.5 MI N OF 8-MILE RD, San Joaquin, CA
Built 1962 Load: 30.5 t ADT: 2,752
NEW HOPE ROAD
GoodOver: MOKELUMNE RIVER
SACRAMENTO CO LINE, San Joaquin, CA
Built 1969 Load: 30.5 t ADT: 1,361
CHRISMAN RD
GoodOver: CORRAL HOLLOW CREEK
0.9 MI N DURHAM FERRY RD, San Joaquin, CA
Built 1960 Load: 30.5 t ADT: 3,000
KAISER ROAD
GoodOver: NORTH LITTLE JOHNS CREEK
0.6 MI N MARIPOSA RD, San Joaquin, CA
Built 1961 Load: 30.5 t ADT: 235
RIVER GROVE DR
GoodOver: ESTRELLA RIVER
0.15 MI E OF ESTRELLA RD, San Luis Obispo, CA
Built 1910 Load: 30.5 t ADT: 100
U.S. HIGHWAY 101
GoodOver: SAN ANTONIO CREEK
05-SB-101-67.41, Santa Barbara, CA
Built 1916 Load: 30.5 t ADT: 29,000
US HIGHWAY 101 NB
GoodOver: LAS LLAGAS UC
05-SB-101-32.84, Santa Barbara, CA
Built 1958 Load: 30.5 t ADT: 16,000
N. MILPITAS BLVD
GoodOver: BERRYESSA CREEK
N MILPITAS BLVD, Santa Clara, CA
Built 1979 Load: 30.5 t ADT: 16,000
STATE ROUTE 96
GoodOver: SALMON RIVER
02-SIS-096-R0.04, Siskiyou, CA
Built 1974 Load: 30.5 t ADT: 410
DEPOT ST
GoodOver: ULATIS CREEK
350 M S MONTE VISTA AVE, Solano, CA
Built 1970 Load: 30.5 t ADT: 14,480
LEWIS ROAD
GoodOver: GIBSON CANYON CREEK
0.4 MI S OF WEBER RD, Solano, CA
Built 1954 Load: 30.5 t ADT: 1,439
INTERSTATE 5 SB
GoodOver: ORESTIMBA ROAD
10-STA-005-5.02, Stanislaus, CA
Built 1967 Load: 30.5 t ADT: 17,500
INTERSTATE 5 NB
GoodOver: ORESTIMBA ROAD
10-STA-005-5.02, Stanislaus, CA
Built 1967 Load: 30.5 t ADT: 17,500
TUOLUMNE RD NORTH
GoodOver: TURNBACK CREEK
0.45 MI NW BUCHANAN RD, Tuolumne, CA
Built 1929 Load: 30.5 t ADT: 2,613
STATE ROUTE 33
GoodOver: PIPELINE 3 UC
07-VEN-033-2.52, Ventura, CA
Built 1956 Load: 30.5 t ADT: 20,000
STATE ROUTE 33
GoodOver: PIPELINE 3 UC
07-VEN-033-2.52, Ventura, CA
Built 1956 Load: 30.5 t ADT: 20,000
US HIGHWAY 101 SB
GoodOver: DULAH ROAD
07-VEN-101-R34.68, Ventura, CA
Built 1973 Load: 30.5 t ADT: 40,500
US HIGHWAY 101 SB
GoodOver: SAN MIGUELITO RD
07-VEN-101-R35.35, Ventura, CA
Built 1973 Load: 30.5 t ADT: 40,500
Showing 19,651-19,700 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.