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
CALAVERAS RD
FairOver: ALAMEDA CREEK
5.2 MI NW/O COUNTY LINE, Alameda, CA
Built 1964 Load: 50.5 t ADT: 1,200
HONEY RUN RD
FairOver: BUTTE CREEK
JUST E/O HUMBUG RD, Butte, CA
Built 1965 Load: 50.5 t ADT: 613
WINDING ROAD
FairOver: BEAR CREEK
11S40-25.2, Fresno, CA
Built 1947 Load: 50.5 t ADT: 50
STATE ROUTE 98
FairOver: CENTRAL MAIN CANAL
11-IMP-098-34.84, Imperial, CA
Built 1970 Load: 50.5 t ADT: 5,790
ALAMO ROAD
FairOver: ALAMO RIVER
1.8 MI W/O SR-115, Imperial, CA
Built 1974 Load: 50.5 t ADT: 570
STATE ROUTE 41 SB
FairOver: SOUTH FORK KINGS RIVER
06-KIN-041-R45.54, Kings, CA
Built 1976 Load: 50.5 t ADT: 8,800
VERNON AVE
FairOver: ACTA
W/O E ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 50.5 t ADT: 14,623
STATE ROUTE 1
FairOver: JACK PETERS CREEK
01-MEN-001-51.87, Mendocino, CA
Built 1939 Load: 50.5 t ADT: 9,900
AVENUE ONE
FairOver: CANAL CREEK
0.4 MI E BUHACH ROAD, Merced, CA
Built 1975 Load: 50.5 t ADT: 1,500
FDR 18
FairOver: CANYON CREEK
S8 T18N R12E, Nevada, CA
Built 1939 Load: 50.5 t ADT: 100
EDINGER AVENUE
FairOver: SANTA ANA RIVER CHANNEL
0.3 MI. E/O HARBOR BLVD, Orange, CA
Built 1959 Load: 50.5 t ADT: 31,000
MILL ST
FairOver: LYTLE CREEK-EAST BRANCH
0.2 MI E/O I-215, San Bernardino, CA
Built 1973 Load: 50.5 t ADT: 21,142
INTERSTATE 15 SB
FairOver: MESA ROCK RD
11-SD-015-R34.89, San Diego, CA
Built 1978 Load: 50.5 t ADT: 70,000
CARPINTERIA AVE
FairOver: FRANKLIN CREEK
0.1 MI W OF HOLLY AVE, Santa Barbara, CA
Built 1977 Load: 50.5 t ADT: 8,024
TASMAN DR & LRT
FairOver: SAN TOMAS AQUINO CREEK
W OF LAFYETTE ST, Santa Clara, CA
Built 1976 Load: 50.5 t ADT: 10,500
ROAD 'BB'
FairOver: WILLOW CREEK
0.2 MI S/O SH 162, Glenn, CA
Built 1965 Load: 50.9 t ADT: 108
CANOGA AVE
FairOver: SANTA SUSANA CREEK
0.2 M N/O PARTHENIA ST, Los Angeles, CA
Built 1966 Load: 50.9 t ADT: 23,713
PARKWAY CALABASAS
FairOver: GOLF COURSE ACCESS RD
1.6MI S/O US-101 FWY, Los Angeles, CA
Built 1991 Load: 50.9 t ADT: 14,057
NORDHOFF WAY
FairOver: UP RR & LIMEKILN CHAN
0.3 M E/O CORBIN AVE, Los Angeles, CA
Built 1990 Load: 50.9 t ADT: 28,500
INTERSTATE 40
FairOver: OCOTILLO WASH
08-SBD-040-148.87, San Bernardino, CA
Built 1957 Load: 50.9 t ADT: 7,450
SB-15 ONRAMP
FairOver: MURPHY CREEK
11-SD-015-R6.83-SD, San Diego, CA
Built 1967 Load: 50.9 t ADT: 10,200
TODD RD
FairOver: LAGUNA DE SANTA ROSA
0.6 MI N JCT W/SR 116, Sonoma, CA
Built 1973 Load: 50.9 t ADT: 2,434
GRIMES CANYON RD
FairOver: GRIMES CANYON WASH
1.8 MI N OF S.R. 118, Ventura, CA
Built 1954 Load: 50.9 t ADT: 3,100
MIDWAY RD
FairOver: BIGGS EXTENSION CANAL
1 MI S RICHVALE HWY, Butte, CA
Built 1936 Load: 51.2 t ADT: 749
BRIM ROAD
FairOver: MILL CREEK
0.4 MI W BEAR VALLEY RD, Colusa, CA
Built 1986 Load: 51.2 t ADT: 11
CALIFORNIA BLVD
FairOver: EATON WASH
0.5MI E/O SAN GABRIEL BL, Los Angeles, CA
Built 1950 Load: 51.2 t ADT: 9,042
INGLEWOOD BLVD
FairOver: CENTINELA CREEK
BTW HAMMACK ST/BRAY ST, Los Angeles, CA
Built 1962 Load: 51.2 t ADT: 18,300
TURNER ISLAND RD
FairOver: SALT SLOUGH
3.1 MI N HENRY MILLER AVE, Merced, CA
Built 1975 Load: 51.2 t ADT: 500
S/B JAMBOREE ROAD
FairOver: SAN DIEGO CREEK CHANNEL
0.3 MI. S/O BRISTOL ST., Orange, CA
Built 1965 Load: 51.2 t ADT: 24,000
N/B JAMBOREE ROAD
FairOver: SAN DIEGO CREEK CHANNEL
0.3 MI. S/O BRISTOL ST., Orange, CA
Built 1968 Load: 51.2 t ADT: 24,000
GYLE RD
FairOver: S FK MCCLURE CREEK
0.8 MI W OF I-5, Tehama, CA
Built 1979 Load: 51.2 t ADT: 1,312
TAFFEE AVE
FairOver: LITTLE CHICO CREEK
0.1 MI N OF CHICO AVE, Butte, CA
Built 1931 Load: 51.5 t ADT: 93
BEAR VALLEY ROAD
FairOver: BEAR CREEK
0.2 MI S KEGAN RD, Colusa, CA
Built 1960 Load: 51.5 t ADT: 33
THOMAS ROAD
FairOver: SALMON CREEK
3.24 MI S SALMON CK RD, Humboldt, CA
Built 1962 Load: 51.5 t ADT: 395
ROCKWOOD AVE
FairOver: ALL AMERICAN CANAL
0.5 MI N/O SR 98, Imperial, CA
Built 1973 Load: 51.5 t ADT: 2,000
INDIAN ROCK ROAD
FairOver: RESERVATION MAIN DRAIN
0.6 MI W/O PICACHO RD, Imperial, CA
Built 1978 Load: 51.5 t ADT: 1,015
INTERSTATE 5 NB
FairOver: NCTD,BNSF & AMTRAK,SCRRA
11-SD-005-R56.86R-OCN, San Diego, CA
Built 1967 Load: 51.5 t ADT: 132,000
ROUTE 905
FairOver: AIRWAY ROAD
11-SD-905-R10.90, San Diego, CA
Built 2011 Load: 51.5 t ADT: 16,250
WEST EDITH AVE
FairOver: ADOBE CREEK
.15 MI W/O FOOTHILL EXPWY, Santa Clara, CA
Built 1985 Load: 51.5 t ADT: 5,000
MISSION COL BLVD
FairOver: SAN TOMAS AQUINO CREEK
NEAR AGNEW RD, Santa Clara, CA
Built 1976 Load: 51.5 t ADT: 2,853
STATE ROUTE 118
FairOver: SYCAMORE DR
07-VEN-118-R25.81-SIMV, Ventura, CA
Built 1969 Load: 51.5 t ADT: 70,000
BEAR GULCH ROAD
FairOver: CHALONE CREEK
CA STATE ROUTE 25 TO CA S, San Benito, CA
Built 1999 Load: 51.7 t ADT: 75
SAN BERNARDINO ST
FairOver: SAN ANTONIO CREEK CHAN
1.0 MI W OF CENTRAL, San Bernardino, CA
Built 1958 Load: 51.7 t ADT: 7,800
WHEELOCK RD
FairOver: DRY CREEK
0.9 MI N OF S.R. 70, Butte, CA
Built 1976 Load: 51.8 t ADT: 279
DURHAM-PENTZ RD
FairOver: CLEAR CREEK
4.1 MI E OF S.R. 99, Butte, CA
Built 1970 Load: 51.8 t ADT: 7,146
SALMON FALLS RD
FairOver: NEW YORK CREEK
1.2 MI N GREEN VALLEY RD, El Dorado, CA
Built 1975 Load: 51.8 t ADT: 2,239
SALMON CREEK ROAD
FairOver: SALMON CREEK
2 MI W/OF HWY 101, Humboldt, CA
Built 1959 Load: 51.8 t ADT: 300
INTERSTATE 8 WB
FairOver: CALIFORNIA WASTEWAY
11-IMP-008-R96.33, Imperial, CA
Built 1973 Load: 51.8 t ADT: 8,350
BEVERLY BLVD
FairOver: UPRR
0.1MI W/O I-605 FWY, Los Angeles, CA
Built 1964 Load: 51.8 t ADT: 5,034
EL SOBRANTE ROAD
FairOver: TEMESCAL CREEK CHANNEL
0.1 MI. S/O 6TH STREET, Riverside, CA
Built 1975 Load: 51.8 t ADT: 8,000
Showing 16,551-16,600 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.