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
DIAMOND STREET
PoorOver: MORMON SLOUGH
0.1 MI N OF DR MLK JR BL, San Joaquin, CA
Built 1960 Load: 28.8 t ADT: 2,164
US HIGHWAY 101 NB
PoorOver: MARIA YGNACIO CREEK
05-SB-101-20.95, Santa Barbara, CA
Built 1961 Load: 28.8 t ADT: 60,500
WINDSOR ROAD
PoorOver: POOL CREEK
0.2 MI N OF SHILOH RD, Sonoma, CA
Built 1967 Load: 28.8 t ADT: 5,900
KNOXV-BERRYESSA RD
PoorOver: POPE CRK.(LAKE BERRYESSA
.2 MI S/O POPE CANYON RD, Napa, CA
Built 1957 Load: 29.2 t ADT: 3,570
INTERSTATE 80 EB
PoorOver: HAMPSHIRE ROCKS,S YUBA R
03-PLA-080-R64.54R, Placer, CA
Built 1963 Load: 29.2 t ADT: 27,000
STATE ROUTE 78
PoorOver: PALO VERDE DRAIN
11-IMP-078-75.57, Imperial, CA
Built 1964 Load: 29.5 t ADT: 2,150
COLLEGE PARK DR
PoorOver: SAN GABRIEL RIV
0.3MI E/O STUDEBAKER RD, Los Angeles, CA
Built 1964 Load: 29.5 t ADT: 2,958
STUDEBAKER RD N/B
PoorOver: S C EDISON N CHAN
350FT N/O LOYNES DRIVE, Los Angeles, CA
Built 1966 Load: 29.5 t ADT: 38,584
CAMP 1 TEN MILE RD
PoorOver: SOUTH FORK TENMILE RIVER
1.88 MILES EAST OF SR 1, Mendocino, CA
Built 1965 Load: 29.5 t ADT: 2
CUNNINGHAM ROAD
PoorOver: OWENS CREEK
0.3 MI N CHILDS AVENUE, Merced, CA
Built 1965 Load: 29.5 t ADT: 630
HUMBOLDT DRIVE
PoorOver: SHORT CHANNEL
0.1 MI W/O SAYBROOK LN, Orange, CA
Built 1963 Load: 29.5 t ADT: 3,000
INTERSTATE 80 WB
PoorOver: BLUE CANYON ROAD
03-PLA-080-53.36, Placer, CA
Built 1959 Load: 29.5 t ADT: 13,250
INDIAN CANYON DRIV
PoorOver: UP RR & AMTRAK
0.6 MI. S/O RTE. I-10 FWY, Riverside, CA
Built 1953 Load: 29.5 t ADT: 15,979
INTERSTATE 40 WB
PoorOver: WILLOW SPRINGS WASH
08-SBD-040-R77.39, San Bernardino, CA
Built 1972 Load: 29.5 t ADT: 8,500
OAKDALE-WATERFORD
PoorOver: CLARIBEL LATERAL
0.5 MI N/O CLARIBEL RD, Stanislaus, CA
Built 1920 Load: 29.8 t ADT: 4,100
PARK AVE
PoorOver: PORTER SLOUGH
0.4 MI N SR190 @CORONA DR, Tulare, CA
Built 1948 Load: 29.8 t ADT: 1,100
INTERSTATE 5 SB
PoorOver: TUMEY GULCH
06-FRE-005-44.93, Fresno, CA
Built 1967 Load: 30.1 t ADT: 16,500
INTERSTATE 5 NB
PoorOver: TUMEY GULCH
06-FRE-005-44.93, Fresno, CA
Built 1967 Load: 30.1 t ADT: 16,500
KIMBERLINA RD
PoorOver: UP RR
WEST OF SH 99, Kern, CA
Built 1968 Load: 30.1 t ADT: 3,200
ELK HILLS ROAD
PoorOver: CALIFORNIA AQUEDUCT
1.5 MI SOUTH OF BRITE RD, Kern, CA
Built 1968 Load: 30.1 t ADT: 1,253
DAN MC NAMARA ROAD
PoorOver: OWENS CREEK
0.2 MI S GREEN HOUSE RD, Merced, CA
Built 1930 Load: 30.1 t ADT: 297
DRY CR RD
PoorOver: DRY CREEK
0.8 MI W MT VEEDER RD, Napa, CA
Built 1920 Load: 30.1 t ADT: 2,490
MACKVILLE ROAD
PoorOver: MOKELUMNE RIVER
0.1 MI S JAHANT RD, San Joaquin, CA
Built 1976 Load: 30.1 t ADT: 1,202
STATE STREET
PoorOver: MISSION CREEK
0.01 MI INTX RTE 225, Santa Barbara, CA
Built 1991 Load: 30.1 t ADT: 7,130
MCCRACKEN ROAD
PoorOver: DELTA-MENDOTA CANAL
0.4 MI S/O HAMILTON ROAD, Stanislaus, CA
Built 1962 Load: 30.1 t ADT: 353
CONE GROVE ROAD
PoorOver: ANTELOPE CREEK
1.4 MI E OF SR 99, Tehama, CA
Built 1935 Load: 30.1 t ADT: 300
STATE ROUTE 126
PoorOver: ELLSWORTH BARRANCA
07-VEN-126-R6.43, Ventura, CA
Built 1965 Load: 30.1 t ADT: 25,000
STATE ROUTE 33
PoorOver: CASITAS VISTA ROAD
07-VEN-033-R5.63, Ventura, CA
Built 1970 Load: 30.1 t ADT: 12,000
CANA HWY
PoorOver: PINE CREEK
4 MI W/O SR 99, Butte, CA
Built 1921 Load: 30.5 t ADT: 276
ZENIA BLUFF RD
PoorOver: SOUTH DOBBYN CREEK
2 MI E/O ALDERPOINT RD, Humboldt, CA
Built 1949 Load: 30.5 t ADT: 85
COCKROBIN ISLD RD
PoorOver: EEL RIVER
0.5 MI S OF CANNIBAL RD, Humboldt, CA
Built 1961 Load: 30.5 t ADT: 25
INTERSTATE 8 EB
PoorOver: ALL AMER CANAL,GORDNS WL
11-IMP-008-R73.91, Imperial, CA
Built 1969 Load: 30.5 t ADT: 7,900
WARE RD
PoorOver: CENTRAL MAIN CANAL
40 FT N/O WILLOUGHBY RD, Imperial, CA
Built 1940 Load: 30.5 t ADT: 1,100
STATE ROUTE 210
PoorOver: MET WATER DIST PIPELINE
07-LA-210-R46.33-SDMS, Los Angeles, CA
Built 1970 Load: 30.5 t ADT: 193,000
HACIENDA BLVD
PoorOver: HACIENDA BLVD OH SPTCO
0.5MI N/O SR-60 FWY, Los Angeles, CA
Built 1964 Load: 30.5 t ADT: 42,238
LINCOLN AVE
PoorOver: SAN RAFAEL CREEK
700 FT S OF IRWIN AVE, Marin, CA
Built 1959 Load: 30.5 t ADT: 11,601
BUCKEYE ROAD
PoorOver: MARIPOSA CREEK
2.3 MI S/O OLD HWY, Mariposa, CA
Built 1947 Load: 30.5 t ADT: 200
BROAD ST
PoorOver: DEER CREEK
BTWN SR20 & SACRAMENTO ST, Nevada, CA
Built 1967 Load: 30.5 t ADT: 8,630
INTERSTATE 80 EB
PoorOver: TROY ROAD
03-PLA-080-68.55, Placer, CA
Built 1959 Load: 30.5 t ADT: 13,500
INTERSTATE 40
PoorOver: BLOOM WASH
08-SBD-040-R11.45, San Bernardino, CA
Built 1968 Load: 30.5 t ADT: 19,500
US HIGHWAY 101 SB
PoorOver: ATASCADERO CREEK
05-SLO-101-45.72-ATAS, San Luis Obispo, CA
Built 1956 Load: 30.5 t ADT: 30,000
MACHADO & CALABAZA
PoorOver: CALABAZAS CREEK
INTERSECTION, Santa Clara, CA
Built 1961 Load: 30.5 t ADT: 500
ARAMAYO WAY
PoorOver: SACRAMENTO RIVER
1.0 MI WEST OF SH 99, Tehama, CA
Built 1977 Load: 30.5 t ADT: 3,300
U.S. HIGHWAY 101
PoorOver: CONEJO SCHOOL RD
07-VEN-101-2.25-THOK, Ventura, CA
Built 1966 Load: 30.5 t ADT: 193,000
BANDINI BLVD
PoorOver: LOS ANGELES RIV
0.1MI E/O SOTO ST, Los Angeles, CA
Built 1969 Load: 30.8 t ADT: 21,275
AIRPORT WAY
PoorOver: DUCK CREEK
1 MI N INDUSTRIAL DR, San Joaquin, CA
Built 1968 Load: 30.8 t ADT: 5,300
WEST LANE
PoorOver: CALAVERAS RIVER
0.5 MI N FULTON ST, San Joaquin, CA
Built 1966 Load: 30.8 t ADT: 41,000
WEST LANE
PoorOver: CALAVERAS RIVER
0.5 MI N FULTON ST, San Joaquin, CA
Built 1966 Load: 30.8 t ADT: 41,000
THORNTON ROAD
PoorOver: BEAR CREEK
1.4 MI N DAVIS RD INTRX, San Joaquin, CA
Built 1960 Load: 30.8 t ADT: 23,500
PRADO RD
PoorOver: SAN LUIS OBISPO CREEK
0.1 MI W HIGUERA ST, San Luis Obispo, CA
Built 1957 Load: 30.8 t ADT: 6,796
Showing 26,401-26,450 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 |