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
RESERVOIR ROAD
PoorOver: M.I.D. MAIN CANAL
0.9 MI N/O SR 132, Stanislaus, CA
Built 1965 Load: 35.6 t ADT: 1,200
BIG CANYON ROAD
PoorOver: BIG CANYON CREEK
8 MI N OF SR 175, Lake, CA
Built 1930 Load: 36.0 t ADT: 308
STATE ROUTE 140
PoorOver: SLATE GULCH
10-MPA-140-37.09, Mariposa, CA
Built 1926 Load: 36.0 t ADT: 1,400
PENN VALLEY DRIVE
PoorOver: CLEAR CREEK
0.65 MI SOUTH OF ROUTE 20, Nevada, CA
Built 1931 Load: 36.0 t ADT: 5,673
INTERSTATE 10 EB
PoorOver: THOUSAND PALMS WASH
08-RIV-010-R53.80-IND, Riverside, CA
Built 1972 Load: 36.0 t ADT: 33,000
SUNSET CLIFFS BLVD
PoorOver: SAN DIEGO RIVER
150FT N/O RTE 8, San Diego, CA
Built 1951 Load: 36.0 t ADT: 40,000
STATE ROUTE 1 SB
PoorOver: TORO CREEK
05-SLO-001-32.61, San Luis Obispo, CA
Built 1962 Load: 36.0 t ADT: 6,250
ORANGE BLOSSOM RD
PoorOver: STANISLAUS RIVER
0.2 MI SW INTSC RODDEN RD, Stanislaus, CA
Built 1967 Load: 36.0 t ADT: 2,416
CHEROKEE RD
PoorOver: UP RR & BNSF RY
1 MI NE TBLE MTN BL, Butte, CA
Built 1963 Load: 36.3 t ADT: 775
CHILD'S HILL ROAD
PoorOver: BUMMER LAKE CREEK
4.5 MI EAST OF US 101, Del Norte, CA
Built 1950 Load: 36.3 t ADT: 10
STATE ROUTE 162
PoorOver: SACRAMENTO RIVER OVFL
03-GLE-162-81.63, Glenn, CA
Built 1911 Load: 36.3 t ADT: 1,500
CALVERT DR
PoorOver: SARATOGA CREEK
LAWERENCE EXPRESSWAY, Santa Clara, CA
Built 1965 Load: 36.3 t ADT: 30,000
CHURCH LANE
PoorOver: SAN PABLO CREEK
0.1 MI S EL PORTAL, Contra Costa, CA
Built 1955 Load: 36.6 t ADT: 12,540
MORAGA BLVD
PoorOver: LAS TRAMPAS CREEK
0.2 MI E FIRST ST, Contra Costa, CA
Built 1937 Load: 36.6 t ADT: 2,200
STATE ROUTE 96
PoorOver: WILLOW CREEK
01-HUM-096-0.24, Humboldt, CA
Built 1965 Load: 36.6 t ADT: 2,900
INTERSTATE 5 NB
PoorOver: MILLUX ROAD & SUNSET RR
06-KER-005-30.75, Kern, CA
Built 1967 Load: 36.6 t ADT: 17,000
FAYE RANCH RD
PoorOver: SOUTH FORK KERN RIVER
0.6 MI N OF RTE 178, Kern, CA
Built 1970 Load: 36.6 t ADT: 210
LOS ALISOS BLVD
PoorOver: SCRRA,BNSF RY,AMTRAK
0.2 MI SW/O JERONIMO RD, Orange, CA
Built 1977 Load: 36.6 t ADT: 42,100
INTERSTATE 40 WB
PoorOver: WEST LUDLOW WASH
08-SBD-040-R49.71, San Bernardino, CA
Built 1968 Load: 36.6 t ADT: 8,250
INTERSTATE 40
PoorOver: BLIND HILLS WASH
08-SBD-040-R100.45, San Bernardino, CA
Built 1970 Load: 36.6 t ADT: 7,500
STATE ROUTE 4
PoorOver: SILVER CREEK
10-ALP-004-26.15, Alpine, CA
Built 1952 Load: 36.9 t ADT: 540
WILBUR RD
PoorOver: THERMALITO BAY CONNECT
0.25 MI N OF SR 162, Butte, CA
Built 1966 Load: 36.9 t ADT: 65
LONE STAR ROAD
PoorOver: CORTINA CREEK
0.7 MI SOUTH OF MEYERS RD, Colusa, CA
Built 1968 Load: 36.9 t ADT: 2,077
LAUREL AVE
PoorOver: KINGS RIVER
0.65 MI W 21ST AVE, Kings, CA
Built 1955 Load: 36.9 t ADT: 1,500
DUARTE RD
PoorOver: EATON WASH
0.5MI E/O SN GABRIEL BLVD, Los Angeles, CA
Built 1989 Load: 36.9 t ADT: 12,063
PARKFLD COALNGA RD
PoorOver: LITTLE CHOLAME CREEK
0.03 MI E VINEYARD CYN RD, Monterey, CA
Built 1960 Load: 36.9 t ADT: 170
INTERSTATE 40
PoorOver: BLIND HILLS WASH
08-SBD-040-R100.48, San Bernardino, CA
Built 1970 Load: 36.9 t ADT: 7,500
RIALTO AVE
PoorOver: LYTLE CREEK
1 MI W OF I-215, San Bernardino, CA
Built 1973 Load: 36.9 t ADT: 7,150
WILSON LANDING RD
PoorOver: ROCK CREEK
2.6 MI W OF SH 99, Butte, CA
Built 1919 Load: 37.2 t ADT: 843
RUEGGER RD
PoorOver: ALAMO RIVER
1.5 MI W/O SR 111, Imperial, CA
Built 1967 Load: 37.3 t ADT: 590
CENTRALIA ST
PoorOver: COYOTE CRK
0.1MI E/O BLOOMFIELD AVE, Los Angeles, CA
Built 1955 Load: 37.3 t ADT: 12,000
LONGDEN AVE
PoorOver: SANTA ANITA WASH
0.8MI E/O SANTA ANITA AVE, Los Angeles, CA
Built 1959 Load: 37.3 t ADT: 6,901
AZUSA AVE
PoorOver: BIG DALTON WASH
0.1MI S/O ARROW HWY, Los Angeles, CA
Built 1941 Load: 37.3 t ADT: 35,490
DAVENPORT DR
PoorOver: WEATHERLY CHANNEL
0.3 MI W/O SAYBROOK LN, Orange, CA
Built 1965 Load: 37.3 t ADT: 2,000
INTERSTATE 40
PoorOver: BADGER WASH
08-SBD-040-R75.50, San Bernardino, CA
Built 1972 Load: 37.3 t ADT: 16,500
PROSPECT AVE
PoorOver: FORESTER CREEK
0.1MI W/O CUYAMACA ST, San Diego, CA
Built 1970 Load: 37.3 t ADT: 21,891
DUSTIN RD
PoorOver: DRY CREEK
0.8 MI N LIBERTY ROAD, San Joaquin, CA
Built 1974 Load: 37.3 t ADT: 846
LINDEN AVE
PoorOver: COLMA CANAL
0.2 MI W US 101, San Mateo, CA
Built 1974 Load: 37.3 t ADT: 7,160
W237-S85 CONNECTOR
PoorOver: STEVENS CREEK & TRAIL
04-SCL-237-R0.35-MVW, Santa Clara, CA
Built 1965 Load: 37.3 t ADT: 16,600
INTERSTATE 680
PoorOver: ABANDONED UP RR R/W
04-ALA-680-R15.62-PLE, Alameda, CA
Built 1967 Load: 37.6 t ADT: 122,000
STATE PARK ROAD
PoorOver: SOUTH FORK EEL RIVER
BENBOW STATE PARK, Humboldt, CA
Built 1969 Load: 37.6 t ADT: 1,100
GOSFORD RD NB
PoorOver: KERN RIVER CANAL
0.2 MI S TRUXTUN AVE, Kern, CA
Built 1981 Load: 37.6 t ADT: 18,900
GOSFORD RD NB
PoorOver: ARVIN-EDISON CANAL
0.3 MI S TRUXTUN AVE, Kern, CA
Built 1981 Load: 37.6 t ADT: 18,900
ELK MOUNTAIN RD
PoorOver: SODA CREEK
SIMMONS RD IN HULLVILLE, Lake, CA
Built 1979 Load: 37.6 t ADT: 169
CARMEL VALLEY RD
PoorOver: FINCH CREEK
13.6 MI NW ARROYO SECO RD, Monterey, CA
Built 1963 Load: 37.6 t ADT: 290
INTERSTATE 5
PoorOver: CASTLE CREEK
02-SHA-005-63.31, Shasta, CA
Built 1960 Load: 37.6 t ADT: 18,000
INTERSTATE 10 EB
PoorOver: PINTO GULCH
08-RIV-010-R82.59, Riverside, CA
Built 1965 Load: 37.9 t ADT: 11,250
BOWKER RD
PoorOver: CENTRAL MAIN CANAL
200 FT N/O COLE RD, Imperial, CA
Built 1957 Load: 38.2 t ADT: 2,400
SLAUSON AVE
PoorOver: LOS ANGELES RIV
0.8MI E/O ATLANTIC BLVD, Los Angeles, CA
Built 1942 Load: 38.2 t ADT: 34,736
STATE ROUTE 152 EB
PoorOver: ARROYO CANAL
10-MER-152-23.96, Merced, CA
Built 1969 Load: 38.2 t ADT: 9,300
Showing 26,701-26,750 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 |