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 ROUTE 23
FairOver: OLSEN ROAD
07-VEN-023-R8.21-THOK, Ventura, CA
Built 1970 Load: 30.8 t ADT: 2,500
C.G. ROAD
FairOver: N. FORK MATILIJA
WHEELER GORGE C.G., Ventura, CA
Built 1953 Load: 30.8 t ADT: 50
WEEDS POINTS RD
FairOver: WILLOW CREEK
0.9 MI NW OF SH 49, Yuba, CA
Built 1950 Load: 30.8 t ADT: 30
DOOLITTLE DRIVE
FairOver: BRANCH OF HUTCHINSON CRE
250 FEET SOUTH OF INTERSE, Yuba, CA
Built 1942 Load: 30.8 t ADT: 4,100
RICHVALE HWY
FairOver: CHEROKEE CANAL BYPASS
1.05 MI E MIDWAY RD, Butte, CA
Built 1960 Load: 31.1 t ADT: 1,191
LUMPKIN ROAD
FairOver: SOUTH FORK FEATHER RIVER
3 MI FORBESTOWN RD, Butte, CA
Built 1967 Load: 31.1 t ADT: 855
BANGOR HWY
FairOver: WEST BRANCH HONCUT CREEK
6.7 MI N LAPORTE RD, Butte, CA
Built 1965 Load: 31.1 t ADT: 1,279
HAMILTON NORD CANA
FairOver: ROCK CREEK
3.0 MI N OF SH 32, Butte, CA
Built 1967 Load: 31.1 t ADT: 694
FOUR MILE RD
FairOver: HUNTERS CREEK
0.5 MI N OF DELEVAN RD, Colusa, CA
Built 1950 Load: 31.1 t ADT: 18
JENSEN AVE
FairOver: TEHAMA-COLUSA CANAL
0.3 MI S OF HILLGATE RD, Colusa, CA
Built 1976 Load: 31.1 t ADT: 124
REDDINGTON AVE
FairOver: TEHAMA-COLUSA CANAL
0.4 MI S OF HILLGATE RD, Colusa, CA
Built 1976 Load: 31.1 t ADT: 135
WILDWOOD RD
FairOver: TEHAMA-COLUSA CANAL
0.2 MI S OF WAGNER RD, Colusa, CA
Built 1976 Load: 31.1 t ADT: 1,018
NORTH GATE ROAD
FairOver: PINE CREEK
AT CASTLE ROCK ROAD, Contra Costa, CA
Built 1970 Load: 31.1 t ADT: 3,500
COUNTY ROAD 316
FairOver: SHELLY CREEK
9.3 MI N OF US HWY 199, Del Norte, CA
Built 1975 Load: 31.1 t ADT: 50
MALCOLM-DIXON ROAD
FairOver: NEW YORK CREEK
0.2 MI E SALMON FALLS RD, El Dorado, CA
Built 1932 Load: 31.1 t ADT: 963
HUNTINGTON LAKE RD
FairOver: BIG CREEK (HUNTINGTON)
6.45 MI N OF S.H. 168, Fresno, CA
Built 1985 Load: 31.1 t ADT: 200
S BETHEL AVE
FairOver: SELMA BRANCH C & K CANAL
0.3 MI N OF SOUTH AVE, Fresno, CA
Built 1948 Load: 31.1 t ADT: 1,500
S LEONARD AVE
FairOver: FOWLER SWITCH CANAL
0.7 MI S OF MANNING AVE, Fresno, CA
Built 1936 Load: 31.1 t ADT: 600
STATE ROUTE 254
FairOver: SOUTH FORK EEL RIVER
01-HUM-254-20.64, Humboldt, CA
Built 1931 Load: 31.1 t ADT: 460
U.S. HIGHWAY 101
FairOver: SOUTH FORK EEL RIVER
01-HUM-101-27.71, Humboldt, CA
Built 1962 Load: 31.1 t ADT: 5,000
PRICE CREEK ROAD
FairOver: SWEET CREEK
3.4 MI W BLUE SLIDE RD, Humboldt, CA
Built 1959 Load: 31.1 t ADT: 39
WINTERHAVEN DR
FairOver: COLORADO RIVER
11-IMP-008U-96.87, Imperial, CA
Built 1956 Load: 31.1 t ADT: 12,600
WAHL RD
FairOver: CENTRAL MAIN CANAL
50 FT E/O AUSTIN RD, Imperial, CA
Built 1940 Load: 31.1 t ADT: 1,000
ORCHARD RD
FairOver: ALAMO RIVER
0.11 MI S/O 4TH ST, Imperial, CA
Built 1968 Load: 31.1 t ADT: 1,825
STATE ROUTE 58
FairOver: BENA ROAD
06-KER-058-74.18, Kern, CA
Built 1960 Load: 31.1 t ADT: 24,200
12TH AVE
FairOver: LAST CHANCE DITCH
0.5 MI N OF EXCELSIOR AVE, Kings, CA
Built 1972 Load: 31.1 t ADT: 600
IDAHO AVE
FairOver: CROSS CREEK
0.35 MI W/O 5TH AVE, Kings, CA
Built 1976 Load: 31.1 t ADT: 600
ARTESIA BLVD
FairOver: COYOTE CRK
0.6MI E/O VALLEY VIEW AVE, Los Angeles, CA
Built 1967 Load: 31.1 t ADT: 19,698
BARRANCA AVE
FairOver: LITTLE DALTON WASH
0.2MI N/O US-66 HWY, Los Angeles, CA
Built 1961 Load: 31.1 t ADT: 16,871
87TH ST E
FairOver: CALIFORNIA AQUEDUCT
0.3MI S/O SR-138 HWY, Los Angeles, CA
Built 1968 Load: 31.1 t ADT: 291
VISTA DEL MAR BL
FairOver: STD OIL PIPE LINE
0.8MI N/O ROSECRANS AVE, Los Angeles, CA
Built 1973 Load: 31.1 t ADT: 24,840
FERN DELL DR
FairOver: FERN DELL CREEK
0.7 MI N HOLLYWOOD BLVD, Los Angeles, CA
Built 1923 Load: 31.1 t ADT: 1,160
SN GABRIEL RV PKWY
FairOver: SYCAMORE CYN CHAN
1MI N/O BEVERLY BLVD, Los Angeles, CA
Built 1954 Load: 31.1 t ADT: 11,088
FOSTER RD
FairOver: COYOTE CRK NF
0.4MI E/O CARMENITA AVE, Los Angeles, CA
Built 1959 Load: 31.1 t ADT: 3,672
AVE 11
FairOver: COTTONWOOD CREEK
0.07 MI W RD 28 1/2, Madera, CA
Built 1977 Load: 31.1 t ADT: 425
NORTH GATEWAY DR
FairOver: FRESNO RIVER
N/O CENTRAL AVE, Madera, CA
Built 1931 Load: 31.1 t ADT: 11,851
ROAD 4
FairOver: EASTSIDE BYPASS CHANNEL
1.2 MI NORTH OF AVE 18.5, Madera, CA
Built 1965 Load: 31.1 t ADT: 200
ROAD 24
FairOver: BERENDA CREEK
0.85 MI N OF AVE 20 1/2, Madera, CA
Built 1975 Load: 31.1 t ADT: 300
INDIAN SPRINGS RD
FairOver: OAK CREEK
0.1 MI N SCHOOL RD, Madera, CA
Built 1973 Load: 31.1 t ADT: 72
MT MCKINLEY RD
FairOver: MILLER CREEK
LUCAS VLY RD INTERSECTION, Marin, CA
Built 1963 Load: 31.1 t ADT: 800
CLOVER RD
FairOver: WILLITS CREEK
0.02 MI S BIRCH ST, Mendocino, CA
Built 1967 Load: 31.1 t ADT: 850
IRR CO RD 87
FairOver: PIT RIVER SLOUGH
0.2 MI NE LKOUT HKMORE RD, Modoc, CA
Built 1955 Load: 31.1 t ADT: 350
STATE ROUTE 1
FairOver: ROCKY CREEK
05-MON-001-60.05, Monterey, CA
Built 1932 Load: 31.1 t ADT: 4,300
INTERLAKE RD
FairOver: SAN ANTONIO RIVER
3 MI S OF JOLON RD., Monterey, CA
Built 1964 Load: 31.1 t ADT: 260
DUNAWEAL LANE
FairOver: NAPA RIVER
0.2 MI N/E SH 29, Napa, CA
Built 1965 Load: 31.1 t ADT: 1,483
STATE ROUTE 89
FairOver: PROSSER CREEK
03-NEV-089-4.87, Nevada, CA
Built 1961 Load: 31.1 t ADT: 4,000
WESTMINSTER AVE-EB
FairOver: LOS ALAMITOS CHANNEL
0.8 MI W/O SEAL BEACH BL., Orange, CA
Built 1964 Load: 31.1 t ADT: 13,000
WESTMINSTER AVE-WB
FairOver: FEDERAL STORM CHANNEL
0.7 MI W/O SEAL BEACH BL., Orange, CA
Built 1964 Load: 31.1 t ADT: 13,000
WESTMINSTER AVE-EB
FairOver: FEDERAL STORM CHANNEL
0.7 MI W/O SEAL BEACH BL., Orange, CA
Built 1964 Load: 31.1 t ADT: 11,000
CAMPUS DRIVE
FairOver: SAN DIEGO CREEK CHANNEL
100' NW UNIVERSITY DR, Orange, CA
Built 1974 Load: 31.1 t ADT: 17,000
Showing 11,951-12,000 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.