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
ALMOND AVE
GoodOver: TEHAMA-COLUSA CANAL
0.8 MI S OF HILLGATE RD, Colusa, CA
Built 1976 Load: 31.1 t ADT: 450
WAGNER AVE
GoodOver: TEHAMA-COLUSA CANAL
0.2 MI W OF WILDWOOD RD, Colusa, CA
Built 1976 Load: 31.1 t ADT: 399
NONPAREIL AVE
GoodOver: TEHAMA-COLUSA CANAL
0.5 MI E OF WILDWOOD RD, Colusa, CA
Built 1976 Load: 31.1 t ADT: 60
GREENBAY ROAD
GoodOver: TEHAMA-COLUSA CANAL
0.7 MI E OF WILDWOOD RD, Colusa, CA
Built 1976 Load: 31.1 t ADT: 271
HARRINGTON AVE
GoodOver: TEHAMA-COLUSA CANAL
1.0 MI W OF I-5, Colusa, CA
Built 1976 Load: 31.1 t ADT: 243
MOTA DRIVE
GoodOver: CONTRA COSTA CANAL
0.1 MI SW RIVERSIDE DR, Contra Costa, CA
Built 1985 Load: 31.1 t ADT: 2,355
STATE ROUTE 41 SB
GoodOver: M STREET
06-FRE-041-R22.80-FRE, Fresno, CA
Built 1974 Load: 31.1 t ADT: 38,000
CO RD #16
GoodOver: TEHAMA-COLUSA CANAL
0.2 MI EAST CO RD 'N', Glenn, CA
Built 1975 Load: 31.1 t ADT: 87
FLINT AVE
GoodOver: LAST CHANCE DITCH
ADJACENT TO 13TH AVE, Kings, CA
Built 1961 Load: 31.1 t ADT: 750
W90-N405 CONNECTOR
GoodOver: SLAUSON AVE
07-LA-090-2.62-CLC, Los Angeles, CA
Built 1968 Load: 31.1 t ADT: 7,500
INTERSTATE 5 SB
GoodOver: LAKE HUGHES RD
07-LA-005-R59.49, Los Angeles, CA
Built 1968 Load: 31.1 t ADT: 37,177
WILLOW ST
GoodOver: LOS ANGELES RIV
0.1MI E/O I-710 FWY, Los Angeles, CA
Built 1946 Load: 31.1 t ADT: 35,638
2ND ST
GoodOver: HAYNES STEAM PLANT CH
0.9MI E/O SR-1 HWY, Los Angeles, CA
Built 1964 Load: 31.1 t ADT: 41,800
VALLEY VIEW S
GoodOver: COYOTE CRK
0.2MI S/O ARTESIA BLVD, Los Angeles, CA
Built 1966 Load: 31.1 t ADT: 21,361
VERMONT AVE
GoodOver: VERMONT AVE OH ATSF RR
0.4MI S/O SEPULVEDA BLVD, Los Angeles, CA
Built 1970 Load: 31.1 t ADT: 29,610
DAINES DR
GoodOver: ARCADIA WASH
0.4MI W/O SANTA ANITA AVE, Los Angeles, CA
Built 1955 Load: 31.1 t ADT: 1,122
170TH ST W
GoodOver: CALIFORNIA AQUEDUCT
0.8MI S/O LANCASTER RD, Los Angeles, CA
Built 1967 Load: 31.1 t ADT: 101
DECORO DR
GoodOver: DRY CYN CHAN
0.3MI W/O SECO CYN RD, Los Angeles, CA
Built 1970 Load: 31.1 t ADT: 12,011
FOOTHILL BLVD
GoodOver: PICKENS CYN CHAN
0.1MI E/O BRIGGS AVE, Los Angeles, CA
Built 1935 Load: 31.1 t ADT: 1,482
STATE ROUTE 1
GoodOver: DE HAVEN CREEK
01-MEN-001-R79.22, Mendocino, CA
Built 1964 Load: 31.1 t ADT: 830
INTERSTATE 5 NB
GoodOver: VOLTA ROAD
10-MER-005-13.87, Merced, CA
Built 1971 Load: 31.1 t ADT: 20,750
IRR CO RD 87
GoodOver: PIT RIVER SLOUGH
0.1 MI N LKOUT HAKMORE RD, Modoc, CA
Built 1955 Load: 31.1 t ADT: 350
STATE ROUTE 68 EB
GoodOver: SALINAS RIVER
05-MON-068-R17.69, Monterey, CA
Built 1966 Load: 31.1 t ADT: 17,952
BOWMAN ROAD
GoodOver: UP RR, BNSF RY, & AMTRAK
0.1 MI SOUTH OF 19C-62, Placer, CA
Built 1949 Load: 31.1 t ADT: 6,032
INTERSTATE 10 EB
GoodOver: META DITCH
08-RIV-010-R110.99, Riverside, CA
Built 1966 Load: 31.1 t ADT: 10,700
INTERSTATE 10 WB
GoodOver: ROLLIE DITCH
08-RIV-010-R109.72, Riverside, CA
Built 1966 Load: 31.1 t ADT: 21,400
INTERSTATE 10 EB
GoodOver: ROLLIE DITCH
08-RIV-010-R109.72, Riverside, CA
Built 1966 Load: 31.1 t ADT: 21,400
INTERSTATE 10 WB
GoodOver: GHOST DITCH
08-RIV-010-R109.26, Riverside, CA
Built 1966 Load: 31.1 t ADT: 21,400
INTERSTATE 10 EB
GoodOver: GHOST DITCH
08-RIV-010-R109.26, Riverside, CA
Built 1966 Load: 31.1 t ADT: 21,400
INTERSTATE 10 WB
GoodOver: KRUME DITCH
08-RIV-010-R92.90, Riverside, CA
Built 1967 Load: 31.1 t ADT: 23,100
INTERSTATE 10 EB
GoodOver: KRUME DITCH
08-RIV-010-R92.90, Riverside, CA
Built 1967 Load: 31.1 t ADT: 23,100
INTERSTATE 15 SB
GoodOver: SANTA GERTRUDIS CREEK
08-RIV-015-6.73-TMCA, Riverside, CA
Built 1951 Load: 31.1 t ADT: 182,000
INTERSTATE 10 EB
GoodOver: EAST CACTUS WASH
08-RIV-010-R73.45, Riverside, CA
Built 1965 Load: 31.1 t ADT: 11,250
INTERSTATE 10
GoodOver: ACARI DITCH
08-RIV-010-R122.15, Riverside, CA
Built 1966 Load: 31.1 t ADT: 10,700
INTERSTATE 10
GoodOver: ESSO DITCH
08-RIV-010-R126.26, Riverside, CA
Built 1966 Load: 31.1 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: ESSO DITCH
08-RIV-010-R126.26, Riverside, CA
Built 1966 Load: 31.1 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: ARCO DITCH
08-RIV-010-R126.97, Riverside, CA
Built 1966 Load: 31.1 t ADT: 10,700
INTERSTATE 10
GoodOver: WALLA DITCH
08-RIV-010-R129.51, Riverside, CA
Built 1966 Load: 31.1 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: WALLA DITCH
08-RIV-010-R129.51, Riverside, CA
Built 1966 Load: 31.1 t ADT: 10,700
MIDLAND ROAD
GoodOver: DRY WASH
0.5 MI. NW/O LOVEKIN BLVD, Riverside, CA
Built 1950 Load: 31.1 t ADT: 242
COTA STREET
GoodOver: TEMESCAL CREEK CHANNEL
0.1 MI. S/O RIVER ROAD, Riverside, CA
Built 1972 Load: 31.1 t ADT: 1,500
24TH ST
GoodOver: RIO LINDA CREEK
E ST IN RIO LINDA, Sacramento, CA
Built 1986 Load: 31.1 t ADT: 2,000
'Q' ST
GoodOver: SOUTH CHANNEL DRY CREEK
18TH STREET, Sacramento, CA
Built 1959 Load: 31.1 t ADT: 3,000
MARIPOSA AVENUE
GoodOver: ARCADE CREEK
0.1 MI S HIGHLAND AVE, Sacramento, CA
Built 1960 Load: 31.1 t ADT: 4,285
INTERSTATE 15 SB
GoodOver: IVANPAH DITCH
08-SBD-015-179.39, San Bernardino, CA
Built 1963 Load: 31.1 t ADT: 1
INTERSTATE 15 NB
GoodOver: DRY LAKE DITCH
08-SBD-015-180.94, San Bernardino, CA
Built 1963 Load: 31.1 t ADT: 19,000
INTERSTATE 10 EB
GoodOver: ETWNDA-SN SEVN FL CN CHN
08-SBD-010-11.64, San Bernardino, CA
Built 1966 Load: 31.1 t ADT: 95,000
INTERSTATE 40
GoodOver: ICE HOUSE DITCH
08-SBD-040-144.38-NED, San Bernardino, CA
Built 1957 Load: 31.1 t ADT: 7,200
STATE ROUTE 79
GoodOver: AGUA CALIENTE CREEK
11-SD-079-36.52, San Diego, CA
Built 1948 Load: 31.1 t ADT: 1,700
OLD HWY 101
GoodOver: SAN ONOFRE CR,BEACH CLUB
SAN ONOFRE STATE PARK, San Diego, CA
Built 1925 Load: 31.1 t ADT: 8,800
Showing 19,751-19,800 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.