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
CONANT ST
FairOver: LOS CERRITOS DRN CH
0.2MI W/O BELLFLOWER BLVD, Los Angeles, CA
Built 1963 Load: 24.3 t ADT: 5,100
CLARK AVE
FairOver: BOUTON CRK
0.1MI S/O ATHERTON ST, Los Angeles, CA
Built 1959 Load: 24.3 t ADT: 18,550
GAREY AVE
FairOver: CHINO CRK
300FT N/O SR-71 FWY, Los Angeles, CA
Built 1972 Load: 24.3 t ADT: 21,200
VERMONT AVE
FairOver: DOMINGUEZ CHANNEL
1/4 MI S/O ARTESIA BLVD, Los Angeles, CA
Built 1958 Load: 24.3 t ADT: 38,000
MILLS AVE
FairOver: SORENSON DRN
0.3MI E/O TELEGRAPH RD, Los Angeles, CA
Built 1960 Load: 24.3 t ADT: 21,008
FOOTHILL BLVD
FairOver: PACOIMA WASH
0.2 MILE SE MACLAY ST, Los Angeles, CA
Built 1923 Load: 24.3 t ADT: 19,441
FALLBROOK AVE
FairOver: DAYTON CREEK
AT SATICOY ST, Los Angeles, CA
Built 1964 Load: 24.3 t ADT: 37,110
FALLBROOK AVE
FairOver: BELL CREEK
0.3 MI N/O VANOWEN AVE, Los Angeles, CA
Built 1963 Load: 24.3 t ADT: 42,146
FOX ST
FairOver: EAST CANYON CHANNEL
BETWN RTE 5 & SHARP AVE, Los Angeles, CA
Built 1967 Load: 24.3 t ADT: 6,176
LAUREL CANYON BLVD
FairOver: BRANFORD STREET CHANNEL
WENTWORTH AVENUE, Los Angeles, CA
Built 1957 Load: 24.3 t ADT: 21,521
PLUMMER ST
FairOver: SANTA SUSANA CREEK
0.3 M W/O SR-27(@FARRALN), Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 19,191
SHERMAN WAY
FairOver: DAYTON CREEK
0.2 MI E/O FALLBROOK AVE, Los Angeles, CA
Built 1963 Load: 24.3 t ADT: 28,824
VICTORY BLVD
FairOver: CALABASAS CREEK
0.4 M W/O SR-27(TOPANGA), Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 32,445
REIS ST, S XING
FairOver: SORENSEN DRN
0.1MI W/O MILLS AVE, Los Angeles, CA
Built 1960 Load: 24.3 t ADT: 1,010
REIS ST, N XING
FairOver: SORENSEN DRN
0.1MI W/O PAINTER AVE, Los Angeles, CA
Built 1960 Load: 24.3 t ADT: 714
GRAMERCY PL
FairOver: DOMINGUEZ CHAN
0.3MI N/O ARTESIA BLVD, Los Angeles, CA
Built 1959 Load: 24.3 t ADT: 4,646
CLEARLAKE DR
FairOver: UNNAMED WASH
0.5MI E/O SAND CYN RD, Los Angeles, CA
Built 1965 Load: 24.3 t ADT: 1,010
EDDINGTON DR
FairOver: PRIVATE DRN #669
0.4MI N/O DEL AMO BLVD, Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 3,030
LA SUBIDA DR
FairOver: HACIENDA CRK
0.1MI W/O HACIENDA BLVD, Los Angeles, CA
Built 1962 Load: 24.3 t ADT: 2,005
CEDARTREE RD
FairOver: LEMORAN AVE STORM DRN
0.1MI W/O PASSONS BLVD, Los Angeles, CA
Built 1967 Load: 24.3 t ADT: 2,499
BROOKPARK RD
FairOver: LEMORAN AVE STORM DRN
0.1MI W/O PASSONS BLVD, Los Angeles, CA
Built 1967 Load: 24.3 t ADT: 408
ROSCOE BLVD
FairOver: PACOIMA WASH
0.5 MI E/O SEPULVEDA BLVD, Los Angeles, CA
Built 1957 Load: 24.3 t ADT: 65,311
LASSEN ST
FairOver: GRANADA CHANNEL
0.1 MI W. HAVENHURST AVE, Los Angeles, CA
Built 1972 Load: 24.3 t ADT: 16,500
STATE ROUTE 41
FairOver: COARSEGOLD CREEK
06-MAD-041-27.93, Madera, CA
Built 1936 Load: 24.3 t ADT: 20,000
BAILEY FLATS ROAD
FairOver: WILLOW CREEK
3.1 MI N/O GREEN MTN RD, Madera, CA
Built 1970 Load: 24.3 t ADT: 51
AVENUE 10
FairOver: COTTONWOOD CREEK
0.2 MI E OF RD 24, Madera, CA
Built 1940 Load: 24.3 t ADT: 50
ROAD 9
FairOver: CHOWCHILLA RIVER
MERCED COUNTY LINE, Madera, CA
Built 1955 Load: 24.3 t ADT: 153
AVENUE 25
FairOver: CHOWCHILLA RIVER
AT MERCED COUNTY LINE, Madera, CA
Built 1955 Load: 24.3 t ADT: 351
REDINGER LAKE ROAD
FairOver: WILLOW CREEK
4.8 MILES EAST OF RD 222, Madera, CA
Built 1950 Load: 24.3 t ADT: 30
NICASSIO VLY RD
FairOver: NICASIO DRAIN NO 2
S PT. REYES - PETALM, Marin, CA
Built 1968 Load: 24.3 t ADT: 1,750
BEL MARIN KEYS BL
FairOver: ARROYO SAN JOSE
JUST N COMMERCIAL DR, Marin, CA
Built 1970 Load: 24.3 t ADT: 20,883
BEL MARIN KEYS BL
FairOver: NOVATO CREEK DRAIN
1 MI NW NAVE DR, Marin, CA
Built 1960 Load: 24.3 t ADT: 6,838
IGNACIO BLVD
FairOver: ARROYO SAN JOSE
0.4 MI W US 101, Marin, CA
Built 1960 Load: 24.3 t ADT: 11,820
REDWOOD BLVD
FairOver: DUTTON SLOUGH
0.1 MI SE ROWLAND BL, Marin, CA
Built 1968 Load: 24.3 t ADT: 3,641
MOUNTAIN VIEW AVE
FairOver: SAN GEROMINO CREEK
INT SIR FRANCIS DRAKE BL, Marin, CA
Built 1962 Load: 24.3 t ADT: 100
POINT SAN RAFAEL R
FairOver: SAN RAFAEL BAY INLET
BY INTERSECT OF KNIGHT DR, Marin, CA
Built 1955 Load: 24.3 t ADT: 2,400
OLD HWY
FairOver: MARIPOSA CREEK
10-MPA-049-17.25, Mariposa, CA
Built 1920 Load: 24.3 t ADT: 840
HORNITOS ROAD
FairOver: TURNER CREEK
0.1 MI E INDIAN GULCH RD, Mariposa, CA
Built 1956 Load: 24.3 t ADT: 150
HORNITOS ROAD
FairOver: ELDORADO CREEK
0.4 MI SE BEAR VALLEY RD, Mariposa, CA
Built 1956 Load: 24.3 t ADT: 130
HORNITOS ROAD
FairOver: BURNS CREEK
0.05 MI W BEAR VALLEY RD, Mariposa, CA
Built 1956 Load: 24.3 t ADT: 560
GREELEY HILL ROAD
FairOver: BEAN CREEK
.3 MI NE/O HOLTZEL RD, Mariposa, CA
Built 1956 Load: 24.3 t ADT: 1,120
GREELEY HILL ROAD
FairOver: SMITH CREEK
1.7 MI NE/O HOLTZEL RD, Mariposa, CA
Built 1956 Load: 24.3 t ADT: 610
BEAR VALLEY ROAD
FairOver: NO NAME CREEK
4.4 MI NE HORNITOS RD, Mariposa, CA
Built 1961 Load: 24.3 t ADT: 190
BEAR VALLEY ROAD
FairOver: BURNS CREEK
5.3 MI NE HORNITOS RD, Mariposa, CA
Built 1961 Load: 24.3 t ADT: 190
BUCKEYE ROAD
FairOver: BUCKEYE CREEK
0.6 MI SE OLD HIGHWAY RD, Mariposa, CA
Built 1960 Load: 24.3 t ADT: 200
U.S. HIGHWAY 101
FairOver: RATTLESNAKE CREEK
01-MEN-101-81.43, Mendocino, CA
Built 1931 Load: 24.3 t ADT: 6,200
STATE ROUTE 253
FairOver: SODA CREEK
01-MEN-253-3.47, Mendocino, CA
Built 1925 Load: 24.3 t ADT: 2,300
OAK ST
FairOver: ORRS CREEK
1 MI S GIBSON ST, Mendocino, CA
Built 1955 Load: 24.3 t ADT: 1,599
BRANSCOMB RD
FairOver: WINDEM CREEK
19.45 MI E FROM SH 1, Mendocino, CA
Built 1950 Load: 24.3 t ADT: 406
RUDDCK-CUNNINHM RD
FairOver: HILDRETH CREEK
0.35 MI S HOWELL CREEK RD, Mendocino, CA
Built 1955 Load: 24.3 t ADT: 619
Showing 10,201-10,250 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.