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
US HIGHWAY 395 SB
GoodOver: L A AQUED ALABAMA SPLWY
09-INY-395-R62.80L, Inyo, CA
Built 1999 Load: 32.4 t ADT: 6,400
US HIGHWAY 395 NB
GoodOver: L A AQUED ALABAMA SPLWY
09-INY-395-R62.80R, Inyo, CA
Built 1999 Load: 32.4 t ADT: 6,400
US HIGHWAY 395 SB
GoodOver: ASH CREEK
09-INY-395-42.02, Inyo, CA
Built 2000 Load: 32.4 t ADT: 6,400
US HIGHWAY 395 NB
GoodOver: ASH CREEK
09-INY-395-42.02, Inyo, CA
Built 2000 Load: 32.4 t ADT: 6,400
US HIGHWAY 395 SB
GoodOver: WHITE CANYON WASH
09-INY-395-R61.56L, Inyo, CA
Built 2000 Load: 32.4 t ADT: 6,400
POLETA RD
GoodOver: OWENS RIVER
3.1 MI E OF ROUTE 395, Inyo, CA
Built 1987 Load: 32.4 t ADT: 656
WARM SPRINGS RD
GoodOver: OWENS RIVER
4.3 MI E OF RTE 395, Inyo, CA
Built 1985 Load: 32.4 t ADT: 220
E BISHOP CREEK RD
GoodOver: BISHOP CREEK
1.9 MI SW RTE 168 JCT, Inyo, CA
Built 1990 Load: 32.4 t ADT: 50
GLACIER LODGE RD
GoodOver: BIG PINE CREEK
2.6 MI W OF ROUTE 395, Inyo, CA
Built 1987 Load: 32.4 t ADT: 500
PINE CREEK RD
GoodOver: PINE CREEK
8.3 MI W OF RTE 395, Inyo, CA
Built 1989 Load: 32.4 t ADT: 200
PA-HA LANE
GoodOver: SOUTH FORK BISHOP CREEK
0.2 MI N OF RTE 168, Inyo, CA
Built 1990 Load: 32.4 t ADT: 700
DIXON LANE
GoodOver: BISHOP CREEK BYPASS CNL
0.2 MI E BROCKMAN LANE, Inyo, CA
Built 1983 Load: 32.4 t ADT: 1,200
FIVE BRIDGES ROAD
GoodOver: OWENS RIVER
1.6 MI N. OF RTE 6, Inyo, CA
Built 1999 Load: 32.4 t ADT: 500
RIVERSIDE RD
GoodOver: BISHOP CREEK CANAL
0.7 MI E BROCKMAN LANE, Inyo, CA
Built 2011 Load: 32.4 t ADT: 80
SABRINA ROAD
GoodOver: BISHOP CREEK
0.3 MI W OF RTE 168 JCT, Inyo, CA
Built 2013 Load: 32.4 t ADT: 600
STATE ROUTE 58
GoodOver: BUENA VISTA SLOUGH
06-KER-058-24.01, Kern, CA
Built 1984 Load: 32.4 t ADT: 9,000
STATE ROUTE 58
GoodOver: EIGHTY FOOT DITCH
06-KER-058-26.38, Kern, CA
Built 1991 Load: 32.4 t ADT: 9,000
STATE ROUTE 178
GoodOver: ISABELLA DRAIN
06-KER-178-R44.10, Kern, CA
Built 1948 Load: 32.4 t ADT: 4,200
INTERSTATE 5
GoodOver: CUDDY CREEK
06-KER-005-R0.55, Kern, CA
Built 1951 Load: 32.4 t ADT: 69,000
ST RT 43 (ENOS LN)
GoodOver: GOOSE LAKE SLOUGH
06-KER-043-7.12, Kern, CA
Built 1951 Load: 32.4 t ADT: 5,500
STATE ROUTE 65
GoodOver: RAG GULCH
06-KER-065-23.59, Kern, CA
Built 1944 Load: 32.4 t ADT: 8,500
STATE ROUTE 33
GoodOver: BITTERWATER CREEK
06-KER-033-12.74, Kern, CA
Built 1988 Load: 32.4 t ADT: 4,750
STATE ROUTE 99
GoodOver: POSO CREEK OVERFLOW
06-KER-099-45.49, Kern, CA
Built 1951 Load: 32.4 t ADT: 51,000
STATE ROUTE 99
GoodOver: BNSF RY & AMTRAK
06-KER-099-24.78-BKD, Kern, CA
Built 1961 Load: 32.4 t ADT: 132,000
STATE ROUTE 99
GoodOver: TVRR & BNSF RY
06-KER-099-20.65, Kern, CA
Built 1962 Load: 32.4 t ADT: 83,000
STATE ROUTE 99
GoodOver: CALLOWAY CANAL
06-KER-099-26.70, Kern, CA
Built 1963 Load: 32.4 t ADT: 100,000
S204-E178 CONNECTR
GoodOver: SR 204 (GOLDEN ST), Q ST
06-KER-204-4.22-BKD, Kern, CA
Built 1967 Load: 32.4 t ADT: 12,000
INTERSTATE 5
GoodOver: EAST SIDE CANAL
06-KER-005-67.96, Kern, CA
Built 1967 Load: 32.4 t ADT: 30,000
INTERSTATE 5
GoodOver: WEST SIDE CANAL
06-KER-005-71.61, Kern, CA
Built 1967 Load: 32.4 t ADT: 29,000
STATE ROUTE 14
GoodOver: JOSHUA DRAIN
09-KER-014-R0.76, Kern, CA
Built 1968 Load: 32.4 t ADT: 30,500
INTERSTATE 5
GoodOver: MAIN CANAL
06-KER-005-42.89, Kern, CA
Built 1969 Load: 32.4 t ADT: 30,000
STATE ROUTE 58
GoodOver: MILL STREET DRAIN
09-KER-058-R91.46-THPI, Kern, CA
Built 1970 Load: 32.4 t ADT: 42,400
MILL STREET
GoodOver: MILL STREET DRAIN
09-KER-058-R91.68-THPI, Kern, CA
Built 1970 Load: 32.4 t ADT: 2,025
STATE ROUTE 58
GoodOver: MONOLITH DRAIN #1
09-KER-058-R96.67, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 58
GoodOver: MONOLITH DRAIN #2
09-KER-058-R96.73, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 58
GoodOver: MONOLITH DRAIN #3
09-KER-058-R96.79, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 58
GoodOver: SHRUB PEAK DRAIN
09-KER-058-R97.46, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 58
GoodOver: CACHE CREEK OVERFLOW #2
09-KER-058-R100.04, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 58
GoodOver: CACHE CREEK OVERFLOW #3
09-KER-058-R100.09, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 58
GoodOver: CACHE CREEK OVERFLOW #4
09-KER-058-R100.14, Kern, CA
Built 1970 Load: 32.4 t ADT: 40,000
STATE ROUTE 58
GoodOver: BORON AVE DRAIN
09-KER-058-R142.52, Kern, CA
Built 1971 Load: 32.4 t ADT: 31,100
STATE ROUTE 14
GoodOver: BACKUS ROAD DRAIN NO. 1
09-KER-014-R9.30, Kern, CA
Built 1972 Load: 32.4 t ADT: 17,600
EAST FRONTAGE ROAD
GoodOver: BACKUS ROAD DRAIN NO. 1
09-KER-014-R9.30, Kern, CA
Built 1972 Load: 32.4 t ADT: 50
STATE ROUTE 14
GoodOver: BACKUS ROAD DRAIN NO. 2
09-KER-014-R9.80, Kern, CA
Built 1972 Load: 32.4 t ADT: 17,600
STATE ROUTE 14
GoodOver: SILVER QUEEN RD DRAIN
09-KER-014-R11.30, Kern, CA
Built 1972 Load: 32.4 t ADT: 20,200
STATE ROUTE 58
GoodOver: KERN ISLAND CANAL
06-KER-058-R53.66-BKD, Kern, CA
Built 1976 Load: 32.4 t ADT: 15,000
STATE ROUTE 204
GoodOver: AIRPORT DRIVE
06-KER-204-6.70, Kern, CA
Built 1994 Load: 32.4 t ADT: 38,000
STATE ROUTE 178
GoodOver: KISSACK CREEK
06-KER-178-49.90, Kern, CA
Built 1952 Load: 32.4 t ADT: 4,900
US HIGHWAY 395
GoodOver: COUNTY LINE WASH
09-KER-395-R36.70, Kern, CA
Built 1993 Load: 32.4 t ADT: 11,300
STATE ROUTE 202
GoodOver: UP RR,BNSF,TEHACHAPI CRK
09-KER-202-R9.59-THPI, Kern, CA
Built 2002 Load: 32.4 t ADT: 25,400
Showing 20,551-20,600 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.