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
INTERSTATE 5
GoodOver: JULIEN CREEK
02-SIS-005-R40.12, Siskiyou, CA
Built 1969 Load: 41.5 t ADT: 8,300
INTERSTATE 5
GoodOver: JULIEN CREEK
02-SIS-005-R40.12, Siskiyou, CA
Built 1969 Load: 41.5 t ADT: 8,300
STATE ROUTE 99 SB
GoodOver: ZEFF RD & TUOLUMNE RIVER
10-STA-099-R14.93-MOD, Stanislaus, CA
Built 1963 Load: 41.5 t ADT: 52,500
CORRAL BOTTOM ROAD
GoodOver: TRINITY RIVER
0.1 MI SOUTH OF SR 299, Trinity, CA
Built 1960 Load: 41.5 t ADT: 300
ROAD 244 (JAYE ST)
GoodOver: TULE RIVER
0.4 MI N OF SR 190, Tulare, CA
Built 1970 Load: 41.5 t ADT: 13,300
STATE ROUTE 33
GoodOver: PIPELINE 1 UC
07-VEN-033-2.83, Ventura, CA
Built 1956 Load: 41.5 t ADT: 20,000
ROUTE 5
GoodOver: EUCLID AVE
07-LA-005-16.05-LA, Los Angeles, CA
Built 1960 Load: 41.7 t ADT: 25,000
STATE ROUTE 18
GoodOver: BONNIE CANYON
08-SBD-018-R16.54, San Bernardino, CA
Built 1970 Load: 41.7 t ADT: 16,800
INTERSTATE 5
GoodOver: HUNTERS CREEK
03-COL-005-R32.94, Colusa, CA
Built 1970 Load: 41.8 t ADT: 12,500
INTERSTATE 5
GoodOver: HUNTERS CREEK
03-COL-005-R32.94, Colusa, CA
Built 1970 Load: 41.8 t ADT: 12,500
NO DATA ENTERED
GoodOver: NO DATA ENTERED
NO DATA ENTERED, El Dorado, CA
Built 2004 Load: 41.8 t ADT: 50
STATE ROUTE 96
GoodOver: HILLSIDE
01-HUM-096-16.76, Humboldt, CA
Built 1966 Load: 41.8 t ADT: 1,505
STOVER RD
GoodOver: MOLASSES CREEK
2.1 MI N JCT BAIR RD, Humboldt, CA
Built 1962 Load: 41.8 t ADT: 56
U.S. HIGHWAY 101
GoodOver: BEAUDRY AVE
07-LA-101-1.76-LA, Los Angeles, CA
Built 1949 Load: 41.8 t ADT: 265,000
GARVEY AVE S
GoodOver: CHARTER OAK WASH
0.1MI E/O CITRUS ST, Los Angeles, CA
Built 1956 Load: 41.8 t ADT: 16,848
HON ENTRANCE
GoodOver: ACTA
400FT N/O FIRESTONE BLVD, Los Angeles, CA
Built 2000 Load: 41.8 t ADT: 306
COUNTY ROAD 9
GoodOver: BERENDA SLOUGH
1.35 MI S OF AVE 18 1/2, Madera, CA
Built 1965 Load: 41.8 t ADT: 465
ATHERTON AVENUE
GoodOver: NCRRA (OLD NWP RR)
04-MRN-101-R22.04-NVTO, Marin, CA
Built 1974 Load: 41.8 t ADT: 8,800
N/B VALLEY VIEW ST
GoodOver: COYOTE CREEK CHANNEL
0.9 MI. N/O ORANGETHORPE, Orange, CA
Built 1967 Load: 41.8 t ADT: 36,000
INTERSTATE 80
GoodOver: WERNER ROAD
03-PLA-080-15.52, Placer, CA
Built 1957 Load: 41.8 t ADT: 77,000
INTERSTATE 15 NB
GoodOver: HORSETHIEF CYN RD
08-RIV-015-28.87, Riverside, CA
Built 1980 Load: 41.8 t ADT: 61,000
STATE ROUTE 25
GoodOver: WILLOW CREEK
05-SBT-025-28.23, San Benito, CA
Built 1966 Load: 41.8 t ADT: 760
INTERSTATE 15 SB
GoodOver: BNSF RY, UP RR, & AMTRAK
08-SBD-015-31.08, San Bernardino, CA
Built 1966 Load: 41.8 t ADT: 71,000
INTERSTATE 15 NB
GoodOver: BNSF RY, UP RR, & AMTRAK
08-SBD-015-31.08, San Bernardino, CA
Built 1966 Load: 41.8 t ADT: 71,000
STATE ROUTE 26
GoodOver: CALAVERAS RIVER
10-SJ-026-15.30, San Joaquin, CA
Built 1952 Load: 41.8 t ADT: 5,200
WILSON WAY
GoodOver: MORMON SLOUGH
0.2 MI N DR MLK JR BLVD, San Joaquin, CA
Built 1964 Load: 41.8 t ADT: 22,900
POZO ROAD
GoodOver: POZO CREEK
HI MOUNTAIN ROAD, San Luis Obispo, CA
Built 1970 Load: 41.8 t ADT: 787
STATE ROUTE 99 NB
GoodOver: ZEFF RD & TUOLUMNE RIVER
10-STA-099-R14.93, Stanislaus, CA
Built 1963 Load: 41.8 t ADT: 52,500
STATE ROUTE 113
GoodOver: ROBBINS CANAL
03-SUT-113-4.97, Sutter, CA
Built 1931 Load: 41.8 t ADT: 7,400
STATE ROUTE 118
GoodOver: ALAMOS CANYON RD
07-VEN-118-R21.86, Ventura, CA
Built 1976 Load: 41.8 t ADT: 41,500
NEPTUNE DR
GoodOver: CANAL A
0.5 MI S/O FAIRWAY DR, Alameda, CA
Built 1970 Load: 42.1 t ADT: 10
BERNAL AVE
GoodOver: ARROYO DEL VALLE
0.05 MI N OF VINEYARD, Alameda, CA
Built 1983 Load: 42.1 t ADT: 13,900
U.S. HIGHWAY 199
GoodOver: MIDDLE FORK SMITH RIVER
01-DN-199-19.99, Del Norte, CA
Built 1962 Load: 42.1 t ADT: 3,100
STATE ROUTE 162
GoodOver: SHEPARDS SLOUGH
03-GLE-162-75.64, Glenn, CA
Built 1958 Load: 42.1 t ADT: 2,700
STATE ROUTE 91
GoodOver: MYRTLE AVE
07-LA-091-R12.34-LBCH, Los Angeles, CA
Built 1970 Load: 42.1 t ADT: 260,000
RESEDA BLVD
GoodOver: LOS ANGELES RIVER
0.25 MI N. VICTORY BLVD, Los Angeles, CA
Built 1955 Load: 42.1 t ADT: 44,165
CITRUS ST
GoodOver: WALNUT CRK
0.5MI S/O I-10 FWY, Los Angeles, CA
Built 1962 Load: 42.1 t ADT: 14,238
NEWHALL RANCH RD
GoodOver: SAN FRANCISQUITO CRK
0.4MI W/O MC BEAN PKWY, Los Angeles, CA
Built 1996 Load: 42.1 t ADT: 41,700
SIMMONS AVE
GoodOver: NOVATO CREEK
0.2 MI NE NOVATO BL, Marin, CA
Built 1932 Load: 42.1 t ADT: 7,037
INTERSTATE 10 EB
GoodOver: WEST CHANNEL STUBBY WASH
08-RIV-010-R24.20, Riverside, CA
Built 1940 Load: 42.1 t ADT: 45,500
TRAMWAY RD
GoodOver: CHINO CANYON CREEK
3.5 MI W/O SR 111 PALM SP, Riverside, CA
Built 1985 Load: 42.1 t ADT: 1,300
CHINO AVE
GoodOver: CUCAMONGA CREEK CHANNEL
0.2 MI W ARCHIBALD AVE, San Bernardino, CA
Built 1979 Load: 42.1 t ADT: 3,721
FOOTHILL BLVD
GoodOver: SAN ANTONIO OVERFLOW
0.18 MI E MONTE VISTA AVE, San Bernardino, CA
Built 1958 Load: 42.1 t ADT: 21,500
INTERSTATE 8 EB
GoodOver: CAMERON STA-KITCHN CR RD
11-SD-008-R51.98, San Diego, CA
Built 1974 Load: 42.1 t ADT: 8,350
INTERSTATE 5 NB
GoodOver: BEAR CREEK
10-SJ-005-34.25, San Joaquin, CA
Built 1975 Load: 42.1 t ADT: 48,000
LOS CANEROS ROAD
GoodOver: PEDESTRIAN ACCESS
NORTH EL COLEGIO RD, Santa Barbara, CA
Built 1973 Load: 42.1 t ADT: 16,071
STATE ROUTE 299
GoodOver: SALT CREEK
02-SHA-299-34.56, Shasta, CA
Built 1923 Load: 42.1 t ADT: 4,475
GRIDER ROAD
GoodOver: WEST GRIDER CREEK
3 MI SW OF SR96, Siskiyou, CA
Built 1971 Load: 42.1 t ADT: 6
LEISURE TOWN RD
GoodOver: SWEENEY CREEK
0.5 MI S ALLENDALE RD, Solano, CA
Built 1974 Load: 42.1 t ADT: 189
STATE ROUTE 36
GoodOver: BATTLE CREEK
02-TEH-036-81.48, Tehama, CA
Built 1958 Load: 42.1 t ADT: 1,150
Showing 24,851-24,900 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 |