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
CR 111
GoodOver: 45 D DRAIN
1.15 MI N OF SH 139, Modoc, CA
Built 1954 Load: 29.8 t ADT: 145
EAGLE LAKE ROAD
GoodOver: SOUTH YUBA RIVER
200 FT N/O RTE 80, Nevada, CA
Built 1964 Load: 29.8 t ADT: 50
SANTIAGO CANYON RD
GoodOver: SANTIAGO CREEK
0.3 MI S/O MODJESKA RD, Orange, CA
Built 1967 Load: 29.8 t ADT: 8,000
NO DATA ENTERED
GoodOver: TRABUCO CREEK
NO DATA ENTERED, Orange, CA
Built 2007 Load: 29.8 t ADT: 125
INTERSTATE 10 EB
GoodOver: CALADA DITCH
08-RIV-010-R130.86, Riverside, CA
Built 1966 Load: 29.8 t ADT: 10,650
INTERSTATE 15 SB
GoodOver: EMPIRE CREEK
08-RIV-015-5.41-TMCA, Riverside, CA
Built 1949 Load: 29.8 t ADT: 163,000
INTERSTATE 15 NB
GoodOver: EMPIRE CREEK
08-RIV-015-5.41-TMCA, Riverside, CA
Built 1968 Load: 29.8 t ADT: 163,000
INTERSTATE 10 WB
GoodOver: CACTUS WASH
08-RIV-010-R73.18, Riverside, CA
Built 1965 Load: 29.8 t ADT: 11,250
INTERSTATE 10 WB
GoodOver: COTTON GULCH
08-RIV-010-R80.33, Riverside, CA
Built 1965 Load: 29.8 t ADT: 11,250
STATE ROUTE 99 NB
GoodOver: WILLOW SLOUGH
03-SAC-099-6.54, Sacramento, CA
Built 1958 Load: 29.8 t ADT: 31,500
SOUTH WATT AVE
GoodOver: MORRISON CREEK
0.6 MI N OF ELDER CREEK, Sacramento, CA
Built 1965 Load: 29.8 t ADT: 17,328
E STREET
GoodOver: RIO LINDA CREEK
1/4 MI E OF 16TH ST, Sacramento, CA
Built 1986 Load: 29.8 t ADT: 6,100
INTERSTATE 40
GoodOver: AIRPORT WASH
08-SBD-040-145.61, San Bernardino, CA
Built 1957 Load: 29.8 t ADT: 7,200
STATE ROUTE 58 WB
GoodOver: AGATE ROAD
08-SBD-058-R32.96-BSW, San Bernardino, CA
Built 1997 Load: 29.8 t ADT: 6,750
ETIWANDA AVE
GoodOver: UP RR & AMTRAK
0.2 MI S I-10, San Bernardino, CA
Built 1964 Load: 29.8 t ADT: 45,000
INTERSTATE 8 WB
GoodOver: VICTORIA DR
11-SD-008-R30.17, San Diego, CA
Built 1969 Load: 29.8 t ADT: 17,000
INTERSTATE 8 EB
GoodOver: VICTORIA DR
11-SD-008-R30.17, San Diego, CA
Built 1969 Load: 29.8 t ADT: 17,000
OLD POMERADO RD
GoodOver: BEELER CREEK
0.36MI S/O POMERADO RD, San Diego, CA
Built 1928 Load: 29.8 t ADT: 550
GENESEE AVE
GoodOver: SAN CLEMENTE CANYON CRK
0.2 MI S/O OF SR 52, San Diego, CA
Built 1966 Load: 29.8 t ADT: 29,800
AIRPORT WAY
GoodOver: FRENCH CAMP SLOUGH
17.52 MI N STNLAUS CO LI, San Joaquin, CA
Built 1968 Load: 29.8 t ADT: 12,716
US HIGHWAY 101 SB
GoodOver: LOS BERROS CREEK
05-SLO-101-8.52, San Luis Obispo, CA
Built 1956 Load: 29.8 t ADT: 25,500
BRIDGE STREET
GoodOver: ARROYO GRANDE CREEK
0.1 MI S OF STATE RTE 227, San Luis Obispo, CA
Built 2021 Load: 29.8 t ADT: 4,000
STATE ROUTE 17 SB
GoodOver: LA MADRONA DRIVE
05-SCR-017-1.38, Santa Cruz, CA
Built 1960 Load: 29.8 t ADT: 32,500
INTERSTATE 5
GoodOver: DOG CREEK
02-SHA-005-45.54, Shasta, CA
Built 1956 Load: 29.8 t ADT: 17,100
INTERSTATE 5
GoodOver: FLUME CREEK ROAD
02-SHA-005-59.35, Shasta, CA
Built 1962 Load: 29.8 t ADT: 17,100
OAK RUN ROAD
GoodOver: CEDAR CREEK
S.R. 299, Shasta, CA
Built 1970 Load: 29.8 t ADT: 220
MACE BLVD
GoodOver: SOUTH FORK PUTAH CREEK
1.7 MI N TREMONT RD, Solano, CA
Built 1949 Load: 29.8 t ADT: 1,279
STARRETT HILL DR
GoodOver: HILLSIDE
0.8 MI SE JCT MOSCOW RD, Sonoma, CA
Built 2015 Load: 29.8 t ADT: 200
MCHENRY AVENUE
GoodOver: DRY SLOUGH
1.7 MI N STATE ROUTE 108, Stanislaus, CA
Built 1962 Load: 29.8 t ADT: 11,442
D 60
GoodOver: CROSS CREEK
1.95 MI S OF AVE 352, Tulare, CA
Built 1962 Load: 29.8 t ADT: 225
ROAD 156
GoodOver: COTTONWOOD CREEK
2.0 MI S OF SR 201, Tulare, CA
Built 1968 Load: 29.8 t ADT: 1,600
ROAD 224
GoodOver: LEWIS CREEK
@ AVENUE 236, Tulare, CA
Built 1974 Load: 29.8 t ADT: 500
WINDING ROAD
GoodOver: CLARK FORK OF STANISLAUS
NO DATA ENTERED, Tuolumne, CA
Built 1940 Load: 29.8 t ADT: 350
C.R. #86A
GoodOver: WINTERS CANAL
0.64 MI S C.R. #23, Yolo, CA
Built 1950 Load: 29.8 t ADT: 146
GENERALS HIGHWAY (
GoodOver: RAVINE
1.7 MILES NORTH OF ASH MO, Tulare, CA
Built 2000 Load: 29.9 t ADT: 1,493
INTERSTATE 680 SB
GoodOver: DEPT OF WATER RESOURCES
04-ALA-680-M1.46-FMT, Alameda, CA
Built 1971 Load: 30.1 t ADT: 61,000
STATE ROUTE 99 SB
GoodOver: HAMLIN SLOUGH
03-BUT-099-25.35, Butte, CA
Built 1989 Load: 30.1 t ADT: 14,125
STATE ROUTE 99 SB
GoodOver: MUD CREEK
03-BUT-099-R37.20, Butte, CA
Built 1966 Load: 30.1 t ADT: 9,500
STATE ROUTE 99 NB
GoodOver: MUD CREEK
03-BUT-099-R37.20, Butte, CA
Built 1966 Load: 30.1 t ADT: 9,500
RUMRILL BLVD
GoodOver: SAN PABLO CREEK
AT BROOKSIDE DR, Contra Costa, CA
Built 2012 Load: 30.1 t ADT: 18,800
U.S. HIGHWAY 101
GoodOver: ROWDY CREEK
01-DN-101-39.63, Del Norte, CA
Built 1951 Load: 30.1 t ADT: 7,250
INTERSTATE 5 SB
GoodOver: PARKHURST EQUIPMENT UC
06-FRE-005-26.80, Fresno, CA
Built 1970 Load: 30.1 t ADT: 16,500
INTERSTATE 5 NB
GoodOver: PARKHURST EQUIPMENT UC
06-FRE-005-26.80, Fresno, CA
Built 1970 Load: 30.1 t ADT: 16,500
W MT WHITNEY AVE
GoodOver: FRESNO SLOUGH OVERFLOW
0.5 MI E OF DICKENSON AVE, Fresno, CA
Built 1955 Load: 30.1 t ADT: 2,700
COUNTY ROAD 303
GoodOver: CLARKS VALLEY CREEK
2.5 MI S HWY 162, Glenn, CA
Built 1950 Load: 30.1 t ADT: 55
U.S. HIGHWAY 101
GoodOver: HILLSIDE
01-HUM-101-27.07, Humboldt, CA
Built 1963 Load: 30.1 t ADT: 5,450
BENBOW DR
GoodOver: FISH CREEK
0.7 MI S/O N JCT HWY 101, Humboldt, CA
Built 1967 Load: 30.1 t ADT: 627
INTERSTATE 8 EB
GoodOver: ALL AMER CANAL,SAND HLLS
11-IMP-008-81.69, Imperial, CA
Built 1961 Load: 30.1 t ADT: 7,250
INTERSTATE 8 WB
GoodOver: MOUNTAIN SPRINGS RD
11-IMP-008-R3.05L, Imperial, CA
Built 1963 Load: 30.1 t ADT: 7,105
STATE ROUTE 136
GoodOver: OWENS RIVER
09-INY-136-2.67, Inyo, CA
Built 1986 Load: 30.1 t ADT: 1,100
Showing 19,551-19,600 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.