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
STATE ST
FairOver: MISSION CREEK
SE OF ALAMAR AVE, Santa Barbara, CA
Built 1950 Load: 21.4 t ADT: 18,200
STATE ROUTE 237 EB
FairOver: COYOTE CREEK
04-SCL-237-8.72-SJS, Santa Clara, CA
Built 1972 Load: 21.4 t ADT: 62,500
HOMESTEAD RD
FairOver: STEVENS CREEK
14.5 MI E OF SH 84, Santa Clara, CA
Built 1918 Load: 21.4 t ADT: 16,409
ASHBY RD
FairOver: CHURN CREEK
0.1 MI NE PINE GROVE, Shasta, CA
Built 1965 Load: 21.4 t ADT: 1,500
PONDEROSA WAY
FairOver: NORTH FORK BATTLE CREEK
4.9 MI S/E SHINGLETOWN, Shasta, CA
Built 1938 Load: 21.4 t ADT: 50
CECILVILLE ROAD
FairOver: SOUTH FORK SCOTT RIVER
0.05 MI WEST OF S R 3, Siskiyou, CA
Built 1954 Load: 21.4 t ADT: 490
E SECOND ST
FairOver: SULPHUR SPRING VALLEY CR
2 KM N I-780 IN BENICIA, Solano, CA
Built 1942 Load: 21.4 t ADT: 5,681
AUSTIN CR RD
FairOver: AUSTIN CREEK
JUST S CAZADERO HWY, Sonoma, CA
Built 1959 Load: 21.4 t ADT: 200
BODEGA HWY
FairOver: SALMON CREEK
AT VALLEY FORD-FREESTN RD, Sonoma, CA
Built 1968 Load: 21.4 t ADT: 6,400
INTERSTATE 5 NB
FairOver: INGRAM CREEK
10-STA-005-23.07, Stanislaus, CA
Built 1967 Load: 21.4 t ADT: 20,500
STATE ROUTE 63
FairOver: ST JOHNS RIVER
06-TUL-063-10.65, Tulare, CA
Built 1931 Load: 21.4 t ADT: 9,500
M56 (HOT SPRGS RD)
FairOver: DEER CREEK
16.4 MI E M109, Tulare, CA
Built 1937 Load: 21.4 t ADT: 225
PONDEROSA WAY
FairOver: TURNBACK CREEK
0.7 MI SOUTH OF SR 108, Tuolumne, CA
Built 1970 Load: 21.4 t ADT: 922
MAIN ST
FairOver: DUNE CREEK
0.7 MI W OF VENTURA AVE, Ventura, CA
Built 1932 Load: 21.4 t ADT: 6,853
GRAND AVE
FairOver: SAN ANTONIO CREEK
0.4 MI E GRIDLEY RD, Ventura, CA
Built 1945 Load: 21.4 t ADT: 2,300
UNIT 1/UNIT 2 DIKE
FairOver: MARSH UNIT 1/MARSH UNT 2
2.0 MI SSW OF HDQTRS, Kern, CA
Built 1970 Load: 21.6 t ADT: 15
LILAC ROAD
FairOver: SAN LUIS REY RIVER
EAST OF PALA, San Diego, CA
Built 2021 Load: 21.6 t ADT: 500
WARD AVENUE
FairOver: DELTA-MENDOTA CANAL
0.5 MILE N OF MARSHALL RD, Stanislaus, CA
Built 1944 Load: 21.6 t ADT: 2,505
OLD 99W
FairOver: SOUTH BRANCH BRUSH CREEK
3.0 MI N OF CO LINE, Colusa, CA
Built 1920 Load: 21.7 t ADT: 2,018
FREEMAN ROAD
FairOver: LAS TRAMPAS CREEK
0.1 MI WEST OF STANLEY CT, Contra Costa, CA
Built 1946 Load: 21.7 t ADT: 625
STATE ROUTE 33
FairOver: POSO CANAL
06-FRE-033-70.63-FIR, Fresno, CA
Built 1939 Load: 21.7 t ADT: 10,300
HUNTINGTON LAKE RD
FairOver: PITMAN CREEK
6.36 MI N OF S.H. 168, Fresno, CA
Built 1942 Load: 21.7 t ADT: 200
E LINCOLN AVE
FairOver: C & K CANAL
0.3 MI E OF ACADEMY AVE, Fresno, CA
Built 1925 Load: 21.7 t ADT: 300
ROAD 62
FairOver: GLENN-COLUSA CANAL
0.3 MI E/O ROAD 'F', Glenn, CA
Built 1946 Load: 21.7 t ADT: 72
STATE ROUTE 299
FairOver: WILLOW CREEK
01-HUM-299-34.56, Humboldt, CA
Built 1955 Load: 21.7 t ADT: 3,200
ISHI PISHI RD
FairOver: KLAMATH RIVER
0.5 MI SW OF SR 96, Humboldt, CA
Built 1967 Load: 21.7 t ADT: 71
STATE ROUTE 86 NB
FairOver: TESLA WASH
11-IMP-086-60.47, Imperial, CA
Built 1952 Load: 21.7 t ADT: 6,900
INTERSTATE 5 SB
FairOver: CALIFORNIA AQUEDUCT
06-KER-005-12.47, Kern, CA
Built 1967 Load: 21.7 t ADT: 24,375
22ND AVE
FairOver: KINGS RIVER
0.4 MI N OF ELGIN AVE, Kings, CA
Built 1950 Load: 21.7 t ADT: 1,317
CENTER RD
FairOver: WILLOW CREEK
JUST EAST OF BELFAST RD, Lassen, CA
Built 1975 Load: 21.7 t ADT: 600
INTERSTATE 210
FairOver: VAN NUYS BLVD
07-LA-210-R6.56-LA, Los Angeles, CA
Built 1975 Load: 21.7 t ADT: 113,000
STUDEBAKER RD S/B
FairOver: S C EDISON S CHAN
300FT S/O LOYNES DRIVE, Los Angeles, CA
Built 1966 Load: 21.7 t ADT: 49,397
STATE ROUTE 128
FairOver: ORNBAUN CREEK
01-MEN-128-33.89, Mendocino, CA
Built 1939 Load: 21.7 t ADT: 2,050
HUTSELL RD (CR123)
FairOver: ROBINSON CREEK
0.1 MI SW SR 128, Mendocino, CA
Built 1960 Load: 21.7 t ADT: 139
ELKHORN ROAD
FairOver: RANCHERIA CREEK
4.5 MI SOUTH OF SR 128, Mendocino, CA
Built 1985 Load: 21.7 t ADT: 165
HEALY ROAD
FairOver: MILES CREEK
0.3 MI N REILLY ROAD, Merced, CA
Built 1960 Load: 21.7 t ADT: 889
GERARD AVENUE
FairOver: MILES CREEK
0.3 MI W PLAINSBURG RD, Merced, CA
Built 1968 Load: 21.7 t ADT: 106
BUHACH ROAD
FairOver: BEAR CREEK
0.3 MI S BROOKS ROAD, Merced, CA
Built 1940 Load: 21.7 t ADT: 332
JOLON RD
FairOver: PINE CANYON CR
0.5 MI SOUTH OF US 101, Monterey, CA
Built 1943 Load: 21.7 t ADT: 2,700
STATE ROUTE 70
FairOver: NORTH FORK FEATHER RIVER
02-PLU-070-16.54, Plumas, CA
Built 1934 Load: 21.7 t ADT: 1,345
STATE ROUTE 74
FairOver: S FORK SAN JACINTO RIV
08-RIV-074-63.76, Riverside, CA
Built 1958 Load: 21.7 t ADT: 3,570
DILLON ROAD
FairOver: COACHELLA CANAL
50' N/O AVENUE 44, Riverside, CA
Built 1946 Load: 21.7 t ADT: 4,300
INTERSTATE 5 NB
FairOver: UP RR,BNSF,AMTRAK, I ST
03-SAC-005-23.59-SAC, Sacramento, CA
Built 1969 Load: 21.7 t ADT: 92,500
ALABAMA RD
FairOver: SKUNK CREEK
0.8 MI N SIMMERHORN RD, Sacramento, CA
Built 1987 Load: 21.7 t ADT: 1,163
ROUTE 40 W BOUND
FairOver: IWO JIMA STREET
08-SBD-040-R3.43, San Bernardino, CA
Built 1964 Load: 21.7 t ADT: 19,500
NAT TRAILS HWY
FairOver: HIGH DITCH
4.7 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 21.7 t ADT: 230
NAT TRAILS HWY
FairOver: BROKAW DITCH
18.2 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 21.7 t ADT: 502
VAN ALLEN RD
FairOver: LONE TREE CREEK
0.5 MI S OF LONE TREE RD, San Joaquin, CA
Built 1928 Load: 21.7 t ADT: 573
STATE ROUTE 1
FairOver: ARROYO LAGUNA
05-SLO-001-R59.89, San Luis Obispo, CA
Built 1968 Load: 21.7 t ADT: 2,200
PRICE CYN RD
FairOver: W BR CORRAL DE PIEDRA CR
0.2 MI SW OF SR 227, San Luis Obispo, CA
Built 1963 Load: 21.7 t ADT: 6,003
Showing 9,551-9,600 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.