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
MTN AVE
GoodOver: SAWPIT WASH
0.2MI N/O HUNTINGTON DR, Los Angeles, CA
Built 1956 Load: 38.9 t ADT: 17,582
SOUTH ST
GoodOver: PALO VERDE DRN
0.3MI E/O WOODRUFF AVE, Los Angeles, CA
Built 1955 Load: 38.9 t ADT: 28,625
VALLEY VIEW AVE
GoodOver: LA MIRADA CRK
0.3MI N/O I-5 FWY, Los Angeles, CA
Built 1959 Load: 38.9 t ADT: 18,137
EAST RUSTIC RD
GoodOver: RUSTIC CANYON CHANNEL
0.2 M W/O CHANNEL RD, Los Angeles, CA
Built 1982 Load: 38.9 t ADT: 135
MONTE MAR DRIVE
GoodOver: BENEDICT CANYON CHANNEL
BEVERWIL DR & ROXBURY BL, Los Angeles, CA
Built 1963 Load: 38.9 t ADT: 1,046
US HIGHWAY 101 SB
GoodOver: DOOLIN CREEK
01-MEN-101-R23.59, Mendocino, CA
Built 1964 Load: 38.9 t ADT: 10,450
US HIGHWAY 101 NB
GoodOver: DOOLIN CREEK
01-MEN-101-R23.59, Mendocino, CA
Built 1964 Load: 38.9 t ADT: 10,450
HENNESS ROAD
GoodOver: DRAINAGE DITCH (WEST)
WEST OF PROSSER DAM ROAD, Nevada, CA
Built 2006 Load: 38.9 t ADT: 1,000
INTERSTATE 10 WB
GoodOver: ORRIS DITCH
08-RIV-010-R91.92, Riverside, CA
Built 1967 Load: 38.9 t ADT: 23,100
INTERSTATE 10 EB
GoodOver: ORRIS DITCH
08-RIV-010-R91.92, Riverside, CA
Built 1967 Load: 38.9 t ADT: 23,000
S15-WINCHESTER OFF
GoodOver: SANTA GERTRUDIS CREEK
08-RIV-015-6.73-TMCA, Riverside, CA
Built 1976 Load: 38.9 t ADT: 7,000
INTERSTATE 15 SB
GoodOver: RR CANYON RD
08-RIV-015-19.16-ESN, Riverside, CA
Built 1982 Load: 38.9 t ADT: 61,000
CALLE EL SEGUNDO
GoodOver: BARISTO FLOOD CONTROL CH
0.16 MI. N/O RAMON ROAD, Riverside, CA
Built 1966 Load: 38.9 t ADT: 2,843
WALERGA ROAD
GoodOver: UP,BNSF,AMTRAK,ROSEVILLE
OVER ROSEVILLE RD, Sacramento, CA
Built 1968 Load: 38.9 t ADT: 11,000
INTERSTATE 40
GoodOver: FOX WASH
08-SBD-040-R139.82-NED, San Bernardino, CA
Built 1967 Load: 38.9 t ADT: 17,500
PADARO LANE
GoodOver: TORO CREEK
0.35 MI S OF SR 101, Santa Barbara, CA
Built 1968 Load: 38.9 t ADT: 962
BALLS FERRY ROAD
GoodOver: ANDERSON CREEK
0.5 MI S DESCHUTES RD, Shasta, CA
Built 1935 Load: 38.9 t ADT: 2,727
STATE ROUTE 3
GoodOver: TRINITY RIVER
02-TRI-003-78.11, Trinity, CA
Built 1971 Load: 38.9 t ADT: 200
RUTH-ZENIA ROAD
GoodOver: LITTLE VAN DUZEN RIVER
0.1 MI SW VAN DUZEN RD, Trinity, CA
Built 1971 Load: 38.9 t ADT: 140
SUCCESS VALLEY DR
GoodOver: SOUTH FORK TULE RIVER
0.7 MI N OF M 137, Tulare, CA
Built 1967 Load: 38.9 t ADT: 75
ROAD 272
GoodOver: DEER CREEK
0.3 MI S OF AVE 120, Tulare, CA
Built 1967 Load: 38.9 t ADT: 25
STATE ROUTE 120
GoodOver: BIG CREEK
10-TUO-120-R37.78, Tuolumne, CA
Built 1977 Load: 38.9 t ADT: 3,800
WINDING ROAD
GoodOver: NIAGARA CREEK
NO DATA ENTERED, Tuolumne, CA
Built 2010 Load: 38.9 t ADT: 50
PIRU CANYON RD
GoodOver: PIRU CREEK
2.4 MI N CENTER ST, Ventura, CA
Built 1983 Load: 38.9 t ADT: 700
W980-27TH ST OFFRP
GoodOver: 30TH STREET
04-ALA-980-1.68-OAK, Alameda, CA
Built 1969 Load: 39.0 t ADT: 7,500
27TH ST-E980 ON RP
GoodOver: 30TH STREET
04-ALA-980-1.68-OAK, Alameda, CA
Built 1969 Load: 39.0 t ADT: 6,600
STATE ROUTE 99 NB
GoodOver: LITTLE DRY CREEK
03-BUT-099-22.95, Butte, CA
Built 1952 Load: 39.0 t ADT: 12,400
INTERSTATE 405
GoodOver: 135TH STREET
07-LA-405-19.74-HAW, Los Angeles, CA
Built 1963 Load: 39.0 t ADT: 260,800
HARBOR DR
GoodOver: MTDB LRT, BNSF RY & SDIV
0.3 MI SE/O 5TH AVE, San Diego, CA
Built 1943 Load: 39.0 t ADT: 19,075
STATE ROUTE 82
GoodOver: STEVENS CREEK
04-SCL-082-18.96-MVW, Santa Clara, CA
Built 1907 Load: 39.0 t ADT: 49,000
COLISEUM WAY
GoodOver: DAMON SLOUGH
50' S OF 66TH AVE, Alameda, CA
Built 1980 Load: 39.2 t ADT: 1,200
SACRAMENTO AVE
GoodOver: MUD CREEK
0.64 MI E OF RIVER RD, Butte, CA
Built 1962 Load: 39.2 t ADT: 1,172
NELSON ROAD
GoodOver: BUTTE CREEK OVERFLOW
1 MI E OF AGUAS FRIAS RD, Butte, CA
Built 1960 Load: 39.2 t ADT: 138
STATE ROUTE 4
GoodOver: SIX MILE CREEK
10-CAL-004-24.03, Calaveras, CA
Built 1961 Load: 39.2 t ADT: 6,950
BROADWAY-N41 ON-RP
GoodOver: N41-VAN NESS OFF,VAN NES
06-FRE-041-R22.65-FRE, Fresno, CA
Built 1974 Load: 39.2 t ADT: 6,600
U.S. HIGHWAY 101
GoodOver: ORCHARD AVE
01-HUM-101-72.03, Humboldt, CA
Built 1963 Load: 39.2 t ADT: 25,700
STATE ROUTE 29
GoodOver: SAINT HELENA CREEK
01-LAK-029-0.17, Lake, CA
Built 1947 Load: 39.2 t ADT: 7,000
STATE ROUTE 22 EB
GoodOver: SAN GABRIEL RIVER
07-LA-022-1.42-LBCH, Los Angeles, CA
Built 1941 Load: 39.2 t ADT: 51,000
U.S. HIGHWAY 101
GoodOver: CHESEBRO CRK
07-LA-101-33.91-AGRH, Los Angeles, CA
Built 1949 Load: 39.2 t ADT: 160,000
STATE ROUTE 170
GoodOver: OXNARD STREET
07-LA-170-R16.63-LA, Los Angeles, CA
Built 1966 Load: 39.2 t ADT: 213,000
CAMPUS RD-WB10 ON
GoodOver: EMBANKMENT
07-LA-010-20.95-MONP, Los Angeles, CA
Built 1972 Load: 39.2 t ADT: 6,500
OLYMPIC BOULEVARD
GoodOver: BNSF RY, LA RIVER, UP RR
0.3 MI W/O SOTO STREET, Los Angeles, CA
Built 1925 Load: 39.2 t ADT: 27,728
LANCASTER RD
GoodOver: CALIFORNIA AQUEDUCT
1MI S/O AVE D, Los Angeles, CA
Built 1967 Load: 39.2 t ADT: 408
CHATSWORTH ST
GoodOver: BULL CREEK
SWINTON AVE/GOTHIC AVE, Los Angeles, CA
Built 1956 Load: 39.2 t ADT: 13,000
LA CIENEGA BLVD
GoodOver: BALLONA CREEK
WASHNTON BL/VENICE BL, Los Angeles, CA
Built 1937 Load: 39.2 t ADT: 42,792
ROSCOE BLVD
GoodOver: BULL CREEK
BTW HVNHURST AV/BALBOA BL, Los Angeles, CA
Built 1955 Load: 39.2 t ADT: 47,000
INTERSTATE 5 SB
GoodOver: GARZAS CREEK
10-MER-005-32.11, Merced, CA
Built 1967 Load: 39.2 t ADT: 17,500
STATE ROUTE 1 NB
GoodOver: PEDESTRIAN WALKWAY
05-MON-001-R83.47, Monterey, CA
Built 1973 Load: 39.2 t ADT: 29,500
VISTA DEL LAGO
GoodOver: ENGLISH CANYON CHANNEL
300' W/O LOS ALISOS BLVD, Orange, CA
Built 1976 Load: 39.2 t ADT: 2,828
WARNER AVENUE
GoodOver: PETERS CANYON CHANNEL
0.5 MI. W/O HARVARD AVE, Orange, CA
Built 1997 Load: 39.2 t ADT: 16,800
Showing 24,551-24,600 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |