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
ROSTRATA AVENUE
FairOver: BREA CREEK CHANNEL
0.2 MI. N/O ARTESIA BLVD., Orange, CA
Built 1987 Load: 31.8 t ADT: 1,927
INTERSTATE 80
FairOver: UP RR, BNSF RY, & AMTRAK
03-PLA-080-28.73, Placer, CA
Built 1958 Load: 31.8 t ADT: 33,000
INTERSTATE 80
FairOver: ALTA ROAD
03-PLA-080-44.75, Placer, CA
Built 1961 Load: 31.8 t ADT: 23,500
DYSON LANE
FairOver: MID FK FEATHER RIV OVRFL
0.9 MI E BCKWRTH-CALPN RD, Plumas, CA
Built 1959 Load: 31.8 t ADT: 22
STATE ROUTE 86S SB
FairOver: WHITEWATER RIVER
08-RIV-086-R9.78, Riverside, CA
Built 2000 Load: 31.8 t ADT: 153,000
FRANKLIN BLVD
FairOver: STONE LAKE DRAIN
0.8 MI N HOOD-FRANKLIN RD, Sacramento, CA
Built 1933 Load: 31.8 t ADT: 2,346
FRANKLIN BLVD
FairOver: STRAWBERRY CREEK
350' N/O COSUMNES BLVD., Sacramento, CA
Built 1998 Load: 31.8 t ADT: 21,571
INTERSTATE 10
FairOver: UP RR SPUR
08-SBD-010-R22.86-COL, San Bernardino, CA
Built 1956 Load: 31.8 t ADT: 204,000
INTERSTATE 40 WB
FairOver: BISMARCK WASH
08-SBD-040-R57.61L, San Bernardino, CA
Built 1970 Load: 31.8 t ADT: 8,150
INTERSTATE 40 EB
FairOver: BISMARCK WASH
08-SBD-040-R57.63R, San Bernardino, CA
Built 1970 Load: 31.8 t ADT: 8,150
RIALTO AVE
FairOver: LYTLE CREEK CHANNEL
1.5 MI WEST OF I-215, San Bernardino, CA
Built 1961 Load: 31.8 t ADT: 10,458
HELENDALE RD
FairOver: FREMONT WASH
0.8 MI S VISTA RD, San Bernardino, CA
Built 1972 Load: 31.8 t ADT: 4,011
INTERSTATE 5 SB
FairOver: SAN MATEO CREEK
11-SD-005-R71.94-OCN, San Diego, CA
Built 1968 Load: 31.8 t ADT: 66,500
INTERSTATE 5 NB
FairOver: SAN MATEO CREEK
11-SD-005-R71.94-OCN, San Diego, CA
Built 1968 Load: 31.8 t ADT: 66,500
STATE ROUTE 94 WB
FairOver: CHOLLAS CREEK
11-SD-094-3.36-SD, San Diego, CA
Built 1958 Load: 31.8 t ADT: 71,500
SUNSET DRIVE
FairOver: BOLAS CREEK
400FT S/O VIA RNCHO PKWY, San Diego, CA
Built 1930 Load: 31.8 t ADT: 500
OLD CASTLE RD
FairOver: MOOSA CANYON CREEK
1.2MI E/O OLD 395, San Diego, CA
Built 1972 Load: 31.8 t ADT: 7,868
STATE ROUTE 26
FairOver: STOCKTON DIVERTING CANAL
10-SJ-026-1.90, San Joaquin, CA
Built 1967 Load: 31.8 t ADT: 10,200
COLLIER ROAD
FairOver: SOUTH FORK COYOTE CREEK
1.7 MI E OF JACK TONE RD, San Joaquin, CA
Built 1964 Load: 31.8 t ADT: 514
VAN ALLEN ROAD
FairOver: TEMPLE CREEK S BRANCH
0.6 MI S OF GAWNE RD, San Joaquin, CA
Built 1927 Load: 31.8 t ADT: 641
MACKVILLE ROAD
FairOver: SOUTH FORK COYOTE CREEK
0.9 MI S OF LIBERTY ROAD, San Joaquin, CA
Built 1969 Load: 31.8 t ADT: 239
HARROLD RD
FairOver: SSJID CANAL
0.5 MI N OF RIVER RD, San Joaquin, CA
Built 1962 Load: 31.8 t ADT: 1,041
INTERSTATE 5
FairOver: CHURN CREEK
02-SHA-005-R19.00-RDG, Shasta, CA
Built 1953 Load: 31.8 t ADT: 34,000
E LENNOX ST
FairOver: YREKA CREEK
0.1 MI E/O SR 3, Siskiyou, CA
Built 1953 Load: 31.8 t ADT: 4
INTERSTATE 80 EB
FairOver: LEDGEWOOD CREEK
04-SOL-080-17.02-FRFD, Solano, CA
Built 1949 Load: 31.8 t ADT: 87,500
US HIGHWAY 101 SB
FairOver: ZANZI LN
04-SON-101-R46.00, Sonoma, CA
Built 1964 Load: 31.8 t ADT: 10,850
US HIGHWAY 101 NB
FairOver: ZANZI LN
04-SON-101-R46.00, Sonoma, CA
Built 1964 Load: 31.8 t ADT: 10,800
LEWISTON ROAD
FairOver: GRASS VALLEY CREEK
1.4 MI NORTH OF SR 299, Trinity, CA
Built 1965 Load: 31.8 t ADT: 330
EAST SIDE ROAD
FairOver: EAST FORK TRINITY RIVER
7.8 MI SOUTHEAST OF SR 3, Trinity, CA
Built 1960 Load: 31.8 t ADT: 420
M 453
FairOver: DRY CREEK
0.5 MI FROM RD SD 243, Tulare, CA
Built 1940 Load: 31.8 t ADT: 75
ERRINGER ROAD
FairOver: ARROYO SIMI
0.4 MI S LOS ANGELES AVE, Ventura, CA
Built 1966 Load: 31.8 t ADT: 22,500
MATILIJA RD
FairOver: NORTH FORK MATILIJA CRK
0.01 MI S OF STATE RTE 33, Ventura, CA
Built 1940 Load: 31.8 t ADT: 50
INTERSTATE 680
FairOver: ARROYO DE LA LAGUNA
04-ALA-680-R17.19-PLE, Alameda, CA
Built 1967 Load: 32.1 t ADT: 146,000
NELSON SHIPPEE RD
FairOver: CHEROKEE CANAL
1 MI W OF SH 99, Butte, CA
Built 1960 Load: 32.1 t ADT: 95
MUIR RD
FairOver: CHANNEL SLOUGH
0.77 MI N/O SACRAMENTO AV, Butte, CA
Built 1936 Load: 32.1 t ADT: 225
INTERSTATE 5 NB
FairOver: SALT CREEK
03-COL-005-R7.99, Colusa, CA
Built 1952 Load: 32.1 t ADT: 15,000
DIRKS ROAD
FairOver: DIRKS CREEK
1.3 MI S OF GLEN CO LINE, Colusa, CA
Built 1960 Load: 32.1 t ADT: 114
STATE ROUTE 180
FairOver: KINGS SLOUGH OVERFLOW
06-FRE-180-26.71, Fresno, CA
Built 1946 Load: 32.1 t ADT: 5,650
W MT WHITNEY AVE
FairOver: CRESCENT DITCH
0.2 MI EAST OF HOWARD AVE, Fresno, CA
Built 1955 Load: 32.1 t ADT: 1,900
S FRUIT AVE
FairOver: MURPHY SLOUGH
0.7 MI N OF MT WHITNEY AV, Fresno, CA
Built 1925 Load: 32.1 t ADT: 500
STATE ROUTE 162
FairOver: TEHAMA-COLUSA CANAL
03-GLE-162-60.76, Glenn, CA
Built 1973 Load: 32.1 t ADT: 800
U.S. HIGHWAY 101
FairOver: TURNER DRAW
01-HUM-101-89.18, Humboldt, CA
Built 1956 Load: 32.1 t ADT: 12,900
ISLAND MOUNTAIN RD
FairOver: CHAMISE CREEK
5.7 MI E/O BELLSPRINGS RD, Humboldt, CA
Built 1973 Load: 32.1 t ADT: 100
NISSEN LANE
FairOver: NISSEN SLOUGH
0.7 MI NORTH OF GOBLE LN, Humboldt, CA
Built 1952 Load: 32.1 t ADT: 13
STATE ROUTE 46
FairOver: FRIANT-KERN CANAL
06-KER-046-56.29, Kern, CA
Built 1950 Load: 32.1 t ADT: 7,700
STATE ROUTE 46 EB
FairOver: CALIFORNIA AQUEDUCT
06-KER-046-29.98, Kern, CA
Built 1967 Load: 32.1 t ADT: 12,000
GRANITE RD
FairOver: POSO CREEK
3 MI S/O BKRFLD-GLNVLE RD, Kern, CA
Built 1969 Load: 32.1 t ADT: 280
KANSAS AVE
FairOver: CROSS CREEK
0.2 MI W OF 6TH AVE, Kings, CA
Built 1967 Load: 32.1 t ADT: 3,300
ORANGE AVE
FairOver: EAST BRANCH CROSS CREEK
0.5 MI W OF 7 1/2 AVE, Kings, CA
Built 1968 Load: 32.1 t ADT: 1,500
BIG CANYON RD
FairOver: BIG CANYON CREEK
8 MI NORTH OF SR 29, Lake, CA
Built 1930 Load: 32.1 t ADT: 208
Showing 12,101-12,150 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.