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 58
FairOver: EAST SIDE CANAL
06-KER-058-28.41, Kern, CA
Built 1951 Load: 32.4 t ADT: 9,000
STATE ROUTE 46
FairOver: WEST SIDE CANAL
06-KER-046-32.85, Kern, CA
Built 1956 Load: 32.4 t ADT: 6,100
STATE ROUTE 178
FairOver: COTTONWOOD CREEK
06-KER-178-R11.66, Kern, CA
Built 1993 Load: 32.4 t ADT: 4,350
STATE ROUTE 178
FairOver: CANE BRAKE CREEK
09-KER-178-76.98, Kern, CA
Built 1948 Load: 32.4 t ADT: 4,800
STATE ROUTE 33
FairOver: SEVENTEEN CANYON
06-KER-033-21.49, Kern, CA
Built 1973 Load: 32.4 t ADT: 10,400
STATE ROUTE 119
FairOver: LAKEVIEW WASH
06-KER-119-8.78, Kern, CA
Built 1948 Load: 32.4 t ADT: 11,800
STATE ROUTE 65
FairOver: LITTLE CREEK
06-KER-065-11.00, Kern, CA
Built 1971 Load: 32.4 t ADT: 7,000
STATE ROUTE 33
FairOver: CYMRIC WASH
06-KER-033-40.38, Kern, CA
Built 1959 Load: 32.4 t ADT: 1,400
INTERSTATE 5
FairOver: GRAPEVINE CREEK
06-KER-005-4.47, Kern, CA
Built 1951 Load: 32.4 t ADT: 69,000
ST RTE 99 & UP RR
FairOver: FRIANT-KERN CANAL
06-KER-099-46.32, Kern, CA
Built 1950 Load: 32.4 t ADT: 59,000
STATE ROUTE 99
FairOver: POSO CREEK OVERFLOW
06-KER-099-41.85, Kern, CA
Built 1947 Load: 32.4 t ADT: 90,000
STATE ROUTE 155
FairOver: FRENCH GULCH
06-KER-155-R68.69, Kern, CA
Built 1994 Load: 32.4 t ADT: 6,600
STATE ROUTE 119
FairOver: SANDY CREEK
06-KER-119-0.97-TAF, Kern, CA
Built 1956 Load: 32.4 t ADT: 5,600
STATE ROUTE 155
FairOver: RAG GULCH
06-KER-155-R15.28, Kern, CA
Built 1953 Load: 32.4 t ADT: 180
INTERSTATE 5
FairOver: TECUYA CREEK
06-KER-005-16.57, Kern, CA
Built 1967 Load: 32.4 t ADT: 28,500
INTERSTATE 5
FairOver: ALEJANDRO CANAL
06-KER-005-40.44, Kern, CA
Built 1969 Load: 32.4 t ADT: 30,000
STATE ROUTE 58
FairOver: CACHE CREEK OVERFLOW #1
09-KER-058-R99.98, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 14
FairOver: CANTIL WASH
09-KER-014-37.32, Kern, CA
Built 1980 Load: 32.4 t ADT: 6,050
STATE ROUTE 178
FairOver: ERSKINE CREEK
06-KER-178-R41.61, Kern, CA
Built 1974 Load: 32.4 t ADT: 4,200
178 EASTBND OFFRP
FairOver: ERSKINE CREEK
06-KER-178-R41.59, Kern, CA
Built 1974 Load: 32.4 t ADT: 740
STATE ROUTE 14
FairOver: JAWBONE CANYON WASH
09-KER-014-35.40, Kern, CA
Built 1994 Load: 32.4 t ADT: 6,050
STATE ROUTE 14
FairOver: INDIAN WELLS WASH
09-KER-014-62.97, Kern, CA
Built 1994 Load: 32.4 t ADT: 3,100
STATE ROUTE 58 WB
FairOver: LA DWP WEST AQUEDUCT
09-KER-058-M108.47, Kern, CA
Built 2003 Load: 32.4 t ADT: 19,900
STATE ROUTE 58 EB
FairOver: LA DWP WEST AQUEDUCT
09-KER-058-M108.47, Kern, CA
Built 2003 Load: 32.4 t ADT: 14,050
SR-58 WB ON-RAMP
FairOver: LA DWP EAST AQUEDUCT
09-KER-058-M108.60, Kern, CA
Built 2003 Load: 32.4 t ADT: 3,100
SR-58 EB OFF RAMP
FairOver: LA DWP EAST AQUEDUCT
09-KER-058-M108.60, Kern, CA
Built 2003 Load: 32.4 t ADT: 3,650
STATE ROUTE 65
FairOver: POSO CREEK
06-KER-065-8.29, Kern, CA
Built 2003 Load: 32.4 t ADT: 7,000
STATE ROUTE 58 WB
FairOver: SAND CANYON ROAD
09-KER-058-R99.49, Kern, CA
Built 2014 Load: 32.4 t ADT: 10,000
STOCKDALE HWY
FairOver: KERN RIVER
0.3 MI W BUENA VISTA RD, Kern, CA
Built 1990 Load: 32.4 t ADT: 46,000
CHINAGRADE LOOP RD
FairOver: KERN RIVER
0.1 MI S ROUND MTN RD, Kern, CA
Built 1991 Load: 32.4 t ADT: 5,000
POND ROAD
FairOver: UP RR
19.4 MI E OF CORCORAN RD, Kern, CA
Built 1960 Load: 32.4 t ADT: 3,970
ZERKER RD
FairOver: LERDO CANAL
SOUTH OF LERDO HWY, Kern, CA
Built 1964 Load: 32.4 t ADT: 870
30TH STREET
FairOver: EAST SIDE CANAL
WEST OF UNION AVE, Kern, CA
Built 1978 Load: 32.4 t ADT: 2,309
CHINA GRADE LOOP
FairOver: BEARDSLEY CANAL
0.1MI S/O ROUND MT. DRIVE, Kern, CA
Built 1997 Load: 32.4 t ADT: 4,269
TEHACHAPI WIL SPRG
FairOver: HIGHLINE RD CANAL
AT HIGHLINE RD, Kern, CA
Built 1972 Load: 32.4 t ADT: 1,890
MING AVE
FairOver: KERN ISLAND CANAL
EAST OF SOUTH 'H' ST, Kern, CA
Built 1956 Load: 32.4 t ADT: 13,217
FAIRFAX RD
FairOver: EAST SIDE CANAL
NORTH OF DEACON AVE, Kern, CA
Built 1979 Load: 32.4 t ADT: 16,000
LAKE ISABELLA RD
FairOver: BODFISH CREEK
S BODFISH CYN RD, Kern, CA
Built 1948 Load: 32.4 t ADT: 7,300
TRUXTUN AVE
FairOver: KERN ISLAND CANAL
EAST OF 'Q' ST, Kern, CA
Built 1986 Load: 32.4 t ADT: 14,307
REWARD ROAD
FairOver: WOOD CANYON WASH
2 MI E MARIA VLY HWY, Kern, CA
Built 1983 Load: 32.4 t ADT: 890
CALIENTE CREEK RD
FairOver: INDIAN CREEK
WEST OF INDIAN CREEK RD, Kern, CA
Built 1976 Load: 32.4 t ADT: 500
CALIENTE-BODFISH R
FairOver: TEHACHAPI CREEK
NORTH BEALVILLE RD, Kern, CA
Built 1976 Load: 32.4 t ADT: 550
SNOW ROAD
FairOver: BEARDSLEY CANAL
0.1 MI W FRUITVALE AVE, Kern, CA
Built 1975 Load: 32.4 t ADT: 3,000
OWENS ST
FairOver: EAST SIDE CANAL
SOUTH OF MONTEREY ST, Kern, CA
Built 1988 Load: 32.4 t ADT: 4,300
INYO ST
FairOver: EAST SIDE CANAL
SOUTH MONTEREY ST, Kern, CA
Built 1989 Load: 32.4 t ADT: 3,300
SACRAMENTO ST
FairOver: EAST SIDE CANAL
SOUTH OF MONTEREY ST, Kern, CA
Built 1984 Load: 32.4 t ADT: 3,600
STOCKTON ST
FairOver: EAST SIDE CANAL
NORTH KENTUCKY ST, Kern, CA
Built 1983 Load: 32.4 t ADT: 4,600
10TH STREET
FairOver: KERN ISLAND CANAL
BETWEEN 'Q' & 'R' ST, Kern, CA
Built 1949 Load: 32.4 t ADT: 3,659
COFFEE ROAD
FairOver: BEARDSLEY CANAL
0.1 MI S OF 7TH STD RD, Kern, CA
Built 1975 Load: 32.4 t ADT: 5,400
IRIS STREET
FairOver: BEARDSLEY CANAL
0.06 MI S FERGUSON AVE, Kern, CA
Built 1981 Load: 32.4 t ADT: 310
Showing 12,651-12,700 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.