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
PLUMBAGO ROAD
FairOver: KANAKA CREEK
1.6 MI SOUTH OF ALLEGHANY, Sierra, CA
Built 1985 Load: 17.8 t ADT: 20
CRAG VIEW DR
FairOver: LITTLE CASTLE CREEK
0.1 MI E I-5, Siskiyou, CA
Built 1917 Load: 17.8 t ADT: 20
FOURTH ST
FairOver: FIFE CREEK
NEAR BROOKSIDE LN, Sonoma, CA
Built 1926 Load: 17.8 t ADT: 1,800
STATE ROUTE 132
FairOver: SNAKE RAVINE
10-STA-132-46.82, Stanislaus, CA
Built 1918 Load: 17.8 t ADT: 1,550
EAST AVENUE
FairOver: T.I.D. MAIN CANAL
0.5 MI E/O SANTA FE AVE, Stanislaus, CA
Built 1920 Load: 17.8 t ADT: 1,611
CARVER
FairOver: M.I.D. MAIN CANAL
S/O ST. FRANCIS AVE, Stanislaus, CA
Built 1923 Load: 17.8 t ADT: 2,597
PAULINE AVENUE
FairOver: M.I.D. LATERAL #5
0.4 MI S/O CALIF AVENUE, Stanislaus, CA
Built 1925 Load: 17.8 t ADT: 449
WOODLAND AVE
FairOver: MCCLURE CREEK
0.1 MI S TEHAMA AVE, Tehama, CA
Built 1929 Load: 17.8 t ADT: 400
WOODSON AVE
FairOver: HALL CREEK
0.05 MI N OLIVEWOOD AVE, Tehama, CA
Built 1938 Load: 17.8 t ADT: 194
AVENUE 322
FairOver: FRIANT-KERN CANAL
0.1 MI WEST OF SR 245, Tulare, CA
Built 1949 Load: 17.8 t ADT: 150
AVENUE 182
FairOver: FRIANT-KERN CANAL
0.25 MI WEST OF ROAD 232, Tulare, CA
Built 1949 Load: 17.8 t ADT: 150
JACKSONVILLE ROAD
FairOver: DON PEDRO RESERVOIR
0.6 MI N/O SR 120, Tuolumne, CA
Built 1970 Load: 17.8 t ADT: 1,491
FRUITLAND RD
FairOver: PRAIRIE CREEK
0.9 MI S BUTTE CO LINE, Yuba, CA
Built 1920 Load: 17.8 t ADT: 400
STATE ROUTE 89
FairOver: EAST FORK CARSON RIVER
10-ALP-089-13.30, Alpine, CA
Built 1934 Load: 18.1 t ADT: 950
MONGE RANCH ROAD
FairOver: COYOTE CREEK
0.1 MI E SR 4 DOUGLAS FLT, Calaveras, CA
Built 1935 Load: 18.1 t ADT: 98
GOAT MOUNTAIN ROAD
FairOver: LITTLE STONY CREEK
7.4 MI W LODOGA-STNYFD RD, Colusa, CA
Built 1935 Load: 18.1 t ADT: 40
LOST HILLS AVE
FairOver: JACALITOS CREEK
JACALITOS CREEK RD, Fresno, CA
Built 1940 Load: 18.1 t ADT: 290
S ALTA AVE
FairOver: FRIANT-KERN CANAL
0.75 MI SOUTH OF SR 180, Fresno, CA
Built 1956 Load: 18.1 t ADT: 225
N DOUGLAS AVE
FairOver: 2ND LIFT CANAL
0.67 MI N OF BULLARD AVE, Fresno, CA
Built 1925 Load: 18.1 t ADT: 225
N ZEDIKER AVE
FairOver: FRESNO CANAL
0.5 MI NORTH OF OLIVE AVE, Fresno, CA
Built 1940 Load: 18.1 t ADT: 300
E MCKINLEY AVE
FairOver: GOULD CANAL
0.4 MI WEST OF VIAU AVE, Fresno, CA
Built 1925 Load: 18.1 t ADT: 100
BAYLISS RD
FairOver: GLENN-COLUSA CANAL
4.82 MI EAST OF I-5, Glenn, CA
Built 1948 Load: 18.1 t ADT: 1,731
COUNTY RD 29
FairOver: CENTRAL IRRIGATION CANAL
0.5 MI W ROAD XX, Glenn, CA
Built 1948 Load: 18.1 t ADT: 427
COUNTY RD 24
FairOver: CENTRAL IRRIGATION CANAL
0.3 MI WEST OF SH 45, Glenn, CA
Built 1948 Load: 18.1 t ADT: 634
BAIR ROAD
FairOver: REDWOOD CREEK
3.4 MI N/O SR 299, Humboldt, CA
Built 1950 Load: 18.1 t ADT: 113
BRICELAND ROAD
FairOver: REDWOOD CREEK
0.1 MI E BRICELND THO RD, Humboldt, CA
Built 1949 Load: 18.1 t ADT: 250
EVAN HEWES HWY
FairOver: LEE DITCH
1.57 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 18.1 t ADT: 272
EVAN HEWES HWY
FairOver: QUAKER WASH
1.7 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 18.1 t ADT: 372
EVAN HEWES HWY
FairOver: BERENDO DITCH
2.1 MI E OF IMPERIAL HWY, Imperial, CA
Built 1932 Load: 18.1 t ADT: 372
EVAN HEWES HWY
FairOver: RIMBO DITCH
5.8 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 18.1 t ADT: 372
ARAZ ROAD (CR S24)
FairOver: WINDMILL WASH
0.28 MI N/O I-8 EXIT 166, Imperial, CA
Built 1932 Load: 18.1 t ADT: 510
COTTONWOOD POW RD
FairOver: LOS ANGELES AQUEDUCT
0.6 MI W OF RTE 395 JCT, Inyo, CA
Built 1927 Load: 18.1 t ADT: 50
COTTONWOOD RD
FairOver: LOS ANGELES AQUEDUCT
0.5 MI W OF RTE 395 JCT, Inyo, CA
Built 1927 Load: 18.1 t ADT: 50
ASH CREEK RD
FairOver: LOS ANGELES AQUEDUCT
0.8 MI W OF RTE 395 JCT, Inyo, CA
Built 1927 Load: 18.1 t ADT: 50
FALL RD
FairOver: LOS ANGELES AQUEDUCT
0.9 MI W OF RTE 395 JCT, Inyo, CA
Built 1927 Load: 18.1 t ADT: 50
BELLFLOWER BLVD
FairOver: LOS CERRITOS DR CHAN
50FT S/O SPRING ST, Los Angeles, CA
Built 1956 Load: 18.1 t ADT: 37,100
MISSION CREEK ROAD
FairOver: MISSION CREEK
N MISS. SA DE PADUA S6/7, Monterey, CA
Built 1965 Load: 18.1 t ADT: 40
CHINO HILLS PKWY
FairOver: SAN ANTONIO CHANNEL
0.5 MI E OF RTE 71, San Bernardino, CA
Built 1965 Load: 18.1 t ADT: 26,000
NAT TRAILS HWY
FairOver: SELVA DITCH
18.4 MI E CRUCERO RD, San Bernardino, CA
Built 1933 Load: 18.1 t ADT: 235
THORNTON ROAD
FairOver: BEAVER SLOUGH
1 MI N PELTIER ROAD, San Joaquin, CA
Built 1958 Load: 18.1 t ADT: 1,232
CORD ROAD
FairOver: BEAR CREEK BRANCH
.5 MI S OF SR 12, San Joaquin, CA
Built 1968 Load: 18.1 t ADT: 15
COTTONTAIL CR RD
FairOver: COTTONTAIL CREEK
2.67 MI W OF CYPRESS MT R, San Luis Obispo, CA
Built 1940 Load: 18.1 t ADT: 100
OCEAN BLVD
FairOver: WILLOW CREEK
0.1 MI S CYPRESS MTN DR, San Luis Obispo, CA
Built 1925 Load: 18.1 t ADT: 1,044
GRAND AVE EB
FairOver: CALTRAIN,UPRR,INDUSTRIAL
0.1 MI E OF US 101, San Mateo, CA
Built 1984 Load: 18.1 t ADT: 6,009
LOMPOC CASMALIA RD
FairOver: UP RR & AMTRAK
0.4 MI S/O POINT SAL RD, Santa Barbara, CA
Built 1943 Load: 18.1 t ADT: 371
EAST DUNNE AVE
FairOver: ANDERSON RESERVOIR
0.5 MI E OF COYOTE RES RD, Santa Clara, CA
Built 1987 Load: 18.1 t ADT: 215
RIDDER PARK DR
FairOver: COYOTE CREEK
0.2 MI S BROKAW RD, Santa Clara, CA
Built 1982 Load: 18.1 t ADT: 3,000
OLD SANTA CRUZ HWY
FairOver: HILLSIDE
0.7 MILES N OF SR 17, Santa Cruz, CA
Built 1984 Load: 18.1 t ADT: 500
LAKE SHORE DRIVE
FairOver: CHARLIE CREEK
1.8 MI SW ANTLR UC ON I-5, Shasta, CA
Built 1926 Load: 18.1 t ADT: 1,383
DEER FLAT RD
FairOver: NORTH FORK BATTLE CREEK
0.3 MI E RITTS MILL RD, Shasta, CA
Built 1947 Load: 18.1 t ADT: 120
Showing 9,001-9,050 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.