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
BOWKER RD
PoorOver: BRIAR CANAL
25 FT N/O COLE RD, Imperial, CA
Built 1957 Load: 24.9 t ADT: 2,400
BAKERSFLD-GLEN RD
PoorOver: GRANITE CANYON CREEK
0.5 MI N/O RND MTN RD, Kern, CA
Built 1948 Load: 24.9 t ADT: 930
STATE ROUTE 125
PoorOver: PANORAMA DRIVE
11-SD-125-13.80-LMSA, San Diego, CA
Built 1957 Load: 24.9 t ADT: 183,000
SAN TOMAS EXPWY
PoorOver: UP RR, DELL AVE
AT WINCHESTER BLVD, Santa Clara, CA
Built 1968 Load: 24.9 t ADT: 6,500
STATE ROUTE 236
PoorOver: BOULDER CREEK
05-SCR-236-4.27, Santa Cruz, CA
Built 1926 Load: 24.9 t ADT: 1,200
INTERSTATE 5 SB
PoorOver: FINK ROAD
10-STA-005-10.71, Stanislaus, CA
Built 1967 Load: 24.9 t ADT: 18,000
DEL MONTE DR
PoorOver: BNSF RY
0.1 MI N SAN PABLO AVE, Contra Costa, CA
Built 1965 Load: 25.3 t ADT: 3,124
SALMON CREEK ROAD
PoorOver: SALMON CREEK
2.65 MI AVE OF THE GIANTS, Humboldt, CA
Built 1959 Load: 25.3 t ADT: 226
WHISLER ROAD
PoorOver: POSO CREEK
2.9 MI E STATE HWY 43, Kern, CA
Built 1958 Load: 25.3 t ADT: 950
STATE ROUTE 198
PoorOver: BNSF RY & AMTRAK
06-KIN-198-R18.13-HAN, Kings, CA
Built 1967 Load: 25.3 t ADT: 20,500
WASHINGTON BLVD
PoorOver: RIO HONDO
0.4MI W/O PARAMOUNT BLVD, Los Angeles, CA
Built 1941 Load: 25.3 t ADT: 33,974
CHOWCHILLA BLVD
PoorOver: BERENDA SLOUGH
0.2 MI NW AVE 24 1/2, Madera, CA
Built 1931 Load: 25.3 t ADT: 1,446
ROAD 229A
PoorOver: NORTH FORK WILLOW CREEK
0.2 MI N OF ROAD 222, Madera, CA
Built 1950 Load: 25.3 t ADT: 60
DYSON LANE
PoorOver: MID FK FEATHER RIV OVRFL
2.16 MI E BCKWTH-CLPIN RD, Plumas, CA
Built 1959 Load: 25.3 t ADT: 45
DYSON LANE
PoorOver: MID FK FEATHER RIV OVRFL
2.23 MI E BCKWTH-CLPIN RD, Plumas, CA
Built 1959 Load: 25.3 t ADT: 45
CENTER ST
PoorOver: STOCKTON CHANNEL
N OF WEBER ST, San Joaquin, CA
Built 1949 Load: 25.3 t ADT: 7,000
STATE ROUTE 198
PoorOver: KAWEAH RIVER
06-TUL-198-43.92, Tulare, CA
Built 1922 Load: 25.3 t ADT: 1,650
ROLLERI BYPASS RD
PoorOver: ANGELS CREEK
NORTH OF SR 4, Calaveras, CA
Built 1932 Load: 25.6 t ADT: 8
STATE ROUTE 86 NB
PoorOver: BILOXI DITCH
11-IMP-086-56.35, Imperial, CA
Built 1981 Load: 25.6 t ADT: 7,300
STATE ROUTE 86 NB
PoorOver: IBERIA DITCH
11-IMP-086-56.59, Imperial, CA
Built 1981 Load: 25.6 t ADT: 7,300
LEMON AVE
PoorOver: SAN JOSE CRK
0.1MI S/O VALLEY BLVD, Los Angeles, CA
Built 1968 Load: 25.6 t ADT: 19,603
LARSON LANE
PoorOver: WEST WALKER RIVER
0.3 MI E RTE 395, PM 110, Mono, CA
Built 1952 Load: 25.6 t ADT: 104
LITTLE PANOCHE RD
PoorOver: PANOCHE CREEK
1 MI N PANOCHE RD, San Benito, CA
Built 1970 Load: 25.6 t ADT: 150
PUMALO ST
PoorOver: DEL ROSA CHANNEL
0.1 MI E OF DEL ROSA AVE, San Bernardino, CA
Built 1950 Load: 25.6 t ADT: 3,300
LOWER SACTO RD
PoorOver: MOSHER SLOUGH
N. OF MACDUFF AVE, San Joaquin, CA
Built 1972 Load: 25.6 t ADT: 19,600
LINCOLN ST
PoorOver: CHAMPLIN SLOUGH
0.3 MI W TEHAMA VINA RD, Tehama, CA
Built 1964 Load: 25.6 t ADT: 200
LINCOLN STREET
PoorOver: CHAMPLIN SLOUGH
0.3 MI W TEHAMA VINA ROAD, Tehama, CA
Built 1969 Load: 25.6 t ADT: 500
26TH ST
PoorOver: LOS ANGELES RIV
0.2MI W/O SOTO ST, Los Angeles, CA
Built 1958 Load: 25.9 t ADT: 8,727
STOCK DR
PoorOver: EAST WALKER RIVER
0.1 MI E SINCLAIR ST, Mono, CA
Built 1977 Load: 25.9 t ADT: 80
INTERSTATE 5 SB
PoorOver: WEBER,PERSHING,FREMONT
10-SJ-005-26.47-STKN, San Joaquin, CA
Built 1972 Load: 25.9 t ADT: 113,000
TORO CREEK RD
PoorOver: TORO CREEK
0.3 MI E SR 1, San Luis Obispo, CA
Built 1951 Load: 25.9 t ADT: 247
SNYDER ROAD
PoorOver: DELTA-MENDOTA CANAL
0.1 MI W ORCHARD ROAD, Merced, CA
Built 1956 Load: 26.2 t ADT: 150
GRAPEFRUIT BLVD
PoorOver: WHITEWATER RIVER
0.9 MI S/AIRPORT BLVD, Riverside, CA
Built 1970 Load: 26.2 t ADT: 5,074
OUTER HIGHWAY 10 S
PoorOver: WILSON CREEK
0.1 MI N/W LIVE OK CYN RD, San Bernardino, CA
Built 1962 Load: 26.2 t ADT: 1,000
THIRD STREET
PoorOver: ISLAIS CREEK
JUST N/O CARGO WAY, San Francisco, CA
Built 1945 Load: 26.2 t ADT: 50,000
ALVARADO BLVD
PoorOver: ALAMEDA FLOOD CNTRL CHNL
0.1 MI S/E LOWRY RD, Alameda, CA
Built 1966 Load: 26.6 t ADT: 28,000
KERNVILLE RD
PoorOver: KERN RIVER
EAST OF BUENA VISTA DR, Kern, CA
Built 1969 Load: 26.6 t ADT: 4,100
ARTESIA BLVD
PoorOver: LOS ANGELES RIV
0.1MI E/O I-710 FWY, Los Angeles, CA
Built 1949 Load: 26.6 t ADT: 21,518
SIR FRANCIS DRAKE
PoorOver: LAGUNITAS CREEK
1.9 MI E SR 1 AT OLEMA, Marin, CA
Built 1964 Load: 26.6 t ADT: 5,000
MONTE RD
PoorOver: SALINAS RIVER
0.75 MI N DEL MONTE BLVD, Monterey, CA
Built 1943 Load: 26.6 t ADT: 2,200
BIG SANDY ROAD
PoorOver: BIG SANDY CREEK
2 MI W INDIAN VALLEY RD, Monterey, CA
Built 1969 Load: 26.6 t ADT: 200
INTERSTATE 80 EB
PoorOver: BLUE CANYON ROAD
03-PLA-080-53.36, Placer, CA
Built 1959 Load: 26.6 t ADT: 13,500
INTERSTATE 40
PoorOver: HALFWAY HILLS WASH
08-SBD-040-R101.33, San Bernardino, CA
Built 1970 Load: 26.6 t ADT: 7,500
INTERSTATE 40
PoorOver: HALFWAY HILLS WASH
08-SBD-040-R101.33, San Bernardino, CA
Built 1970 Load: 26.6 t ADT: 7,500
STATE ROUTE 94
PoorOver: COTTONWOOD CREEK
11-SD-094-34.97, San Diego, CA
Built 1954 Load: 26.6 t ADT: 6,900
S. TRACY BOULEVARD
PoorOver: OLD RIVER
3 MI NORTH OF S.H. 205, San Joaquin, CA
Built 1956 Load: 26.6 t ADT: 7,008
FLORADALE AVE
PoorOver: SANTA YNEZ RIVER
0.8 MI N CENTRAL AVE, Santa Barbara, CA
Built 1969 Load: 26.6 t ADT: 7,009
STATE ROUTE 299
PoorOver: WHISKEY CREEK(WSKYTWN LK
02-SHA-299-14.17, Shasta, CA
Built 1961 Load: 26.6 t ADT: 4,050
TYLER ROAD
PoorOver: OAT CREEK
0.25 MI N OF PROBERTA RD, Tehama, CA
Built 1965 Load: 26.6 t ADT: 1,200
STATE ROUTE 3
PoorOver: COFFEE CREEK OVERFLOW
02-TRI-003-67.98, Trinity, CA
Built 1968 Load: 26.6 t ADT: 230
Showing 26,301-26,350 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |