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
TAMALPAIS AVE
GoodOver: WARNER CREEK
0.1 MI SW NOVATO BLVD, Marin, CA
Built 1973 Load: 64.8 t ADT: 4,458
YOSEMITE AVE
GoodOver: BERRYESSA CREEK
E OF MILPITAS BLVD, Santa Clara, CA
Built 1972 Load: 64.8 t ADT: 11,000
HAMMETT RD
GoodOver: UP RR
10-STA-099-R24.30, Stanislaus, CA
Built 1970 Load: 64.8 t ADT: 2,000
Loleta Ave
GoodOver: Tehama-Colusa Canal
NW of Chico, Tehama, CA
Built 1966 Load: 64.8 t ADT: 120
Kirkwood Road
GoodOver: Tehama-Colusa Canal
2 mi S of Corning, Tehama, CA
Built 1966 Load: 64.8 t ADT: 200
ALISO CYN RD
GoodOver: GLEASON CYN CRK
4.7MI W/O ANGELES FOR HWY, Los Angeles, CA
Built 2006 Load: 65.1 t ADT: 1,326
EMERALD VISTA DR
GoodOver: ELK GROVE CREEK
0.1 MI N ELK GROVE BLVD, Sacramento, CA
Built 1977 Load: 65.1 t ADT: 11,470
CHANDLER BL N RDWY
GoodOver: TUJUNGA WASH
0.1 MI E COLDWTER CYN AVE, Los Angeles, CA
Built 1951 Load: 65.4 t ADT: 19,500
E FRK RD
GoodOver: BURRO CYN
0.7MI E/O SAN GBRL CYN RD, Los Angeles, CA
Built 1973 Load: 65.4 t ADT: 900
LIMONITE AVENUE
GoodOver: DAY CREEK CHANNEL
0.6 MI. W/O ETIWANDA AVE., Riverside, CA
Built 1984 Load: 65.4 t ADT: 18,000
U.S. HIGHWAY 101
GoodOver: WHITSETT AVE
07-LA-101-13.39-LA, Los Angeles, CA
Built 1959 Load: 66.1 t ADT: 175,000
INTERSTATE 5
GoodOver: SMITH CREEK
03-YOL-005-R16.74, Yolo, CA
Built 1970 Load: 66.1 t ADT: 11,750
INTERSTATE 10
GoodOver: LACMTA LRT
07-LA-010-R6.60-LA, Los Angeles, CA
Built 1964 Load: 66.2 t ADT: 254,000
SIERRA HWY
GoodOver: ABANDONED SR 14 RAMP
07-LA-014U-24.30, Los Angeles, CA
Built 1955 Load: 66.4 t ADT: 7,630
KLAMATH RIVER ROAD
GoodOver: HUMBUG CREEK
AT HUMBUG CREEK RD, Siskiyou, CA
Built 1975 Load: 66.4 t ADT: 20
INTERSTATE 5 NB
GoodOver: NCTD,BNSF & AMTRAK,SCRRA
11-SD-005-R55.47R-OCN, San Diego, CA
Built 1967 Load: 66.7 t ADT: 156,000
INTERSTATE 280
GoodOver: PRIVATE ROAD
04-SCL-280-R3.34-SJS, Santa Clara, CA
Built 1969 Load: 66.7 t ADT: 196,000
FALLS AVENUE
GoodOver: SACRAMENTO RIVER
EAST OF I-5 NEAR SWETBRIR, Shasta, CA
Built 1974 Load: 66.7 t ADT: 100
FRISBY RD
GoodOver: CEDAR CREEK
0.4 MI S OF S.R. 299, Shasta, CA
Built 1960 Load: 66.7 t ADT: 100
INTERSTATE 5
GoodOver: COHASSET STREET
07-LA-005-31.86-BRB, Los Angeles, CA
Built 1960 Load: 67.1 t ADT: 187,358
LAGUNITAS RD
GoodOver: SAN GERONIMO CREEK
.03 MI S SR FRNCS DRAKE B, Marin, CA
Built 1964 Load: 67.4 t ADT: 200
MARSHALL RD
GoodOver: ALAMO CREEK
NEAR ALAMO DR & I-80, Solano, CA
Built 1982 Load: 67.4 t ADT: 5,440
ORD FERRY ROAD
GoodOver: SACRAMENTO RIVER
GLENN CO LINE, Butte, CA
Built 1971 Load: 67.7 t ADT: 1,364
STATE ROUTE 94
GoodOver: GRANDE CREEK
11-SD-094-29.12, San Diego, CA
Built 1928 Load: 68.0 t ADT: 7,800
DIAMOND MTN RD
GoodOver: LIGHTS CREEK
8.2 MI NE BECKWRTH-GRN RD, Plumas, CA
Built 1970 Load: 68.4 t ADT: 80
SAN RAFAEL AVE
GoodOver: ARROYO SECO CHAN
100FT W/O ARROYO BLVD, Los Angeles, CA
Built 1922 Load: 68.7 t ADT: 381
EAST SIDE ROAD
GoodOver: BERRY CREEK
0.1 MI S CANYON ROAD, Mendocino, CA
Built 1981 Load: 68.7 t ADT: 182
TALL GRASS DRIVE
GoodOver: BROWNS VALLEY CREEK
JUST SOUTH OF PARTRICK RD, Napa, CA
Built 2009 Load: 68.7 t ADT: 1,000
COUNTY ROAD 95
GoodOver: UNION SCHOOL SLOUGH
0.2 MI N OF C.R. #29, Yolo, CA
Built 1980 Load: 69.0 t ADT: 1,080
MT AUKUM RD
GoodOver: SPANISH CREEK
9.4 MI S PLEASANT VALY RD, El Dorado, CA
Built 1977 Load: 70.0 t ADT: 1,746
CALIFORNIA INCLINE
GoodOver: PACIFIC COAST HWY
0.1 MI S PACIFIC COAST HY, Los Angeles, CA
Built 2016 Load: 70.0 t ADT: 10,118
ARROW ROUTE
GoodOver: CUCAMONGA CREEK CHANNEL
0.1 MI W VINEYARD AVE, San Bernardino, CA
Built 1980 Load: 70.0 t ADT: 15,200
LUCILLE LN
GoodOver: GRAYSON CREEK
0.3 MI S TAYLOR BLVD, Contra Costa, CA
Built 1979 Load: 70.3 t ADT: 120
STATE ROUTE 1
GoodOver: ARROYO SEQUIT
07-LA-001-62.26, Los Angeles, CA
Built 1927 Load: 70.3 t ADT: 12,700
ROUTE 5
GoodOver: ROXFORD STREET
07-LA-005-42.65-LA, Los Angeles, CA
Built 1963 Load: 70.3 t ADT: 278,107
WESTERN AVENUE
GoodOver: NORTH NORCO CHANNEL
300' S/O SECOND STREET, Riverside, CA
Built 1979 Load: 70.3 t ADT: 2,550
INTERSTATE 5 NB
GoodOver: FRENCH CAMP ROAD
10-SJ-005-R22.51, San Joaquin, CA
Built 1971 Load: 70.3 t ADT: 43,750
HWY 101 NB RT LANE
GoodOver: MISSION CREEK
05-SB-101-R14.96-SB, Santa Barbara, CA
Built 1963 Load: 70.3 t ADT: 120,000
BURBANK BLVD
GoodOver: TUJUNGA WASH BURBANK
AT COLDWATER CANYON AVE, Los Angeles, CA
Built 1951 Load: 70.6 t ADT: 31,134
INTERSTATE 8
GoodOver: ABANDONED W8-S163 RAMP
11-SD-008-2.32-SD, San Diego, CA
Built 1959 Load: 71.0 t ADT: 214,000
LIME KILN RD
GoodOver: SULLIVAN CREEK
0.9 MI S OF CAMPO SECO RD, Tuolumne, CA
Built 1945 Load: 71.0 t ADT: 1,800
INTERSTATE 5
GoodOver: LOS ANGELES AQUEDUCT CHL
07-LA-005-R44.40-LA, Los Angeles, CA
Built 1955 Load: 71.3 t ADT: 281,078
CANOGA AVE
GoodOver: LOS ANGELES RIVER
0.1 M N/O VANOWEN ST, Los Angeles, CA
Built 1956 Load: 71.3 t ADT: 45,004
INTERSTATE 405
GoodOver: WASHINGTON BLVD
07-LA-405-27.45-CLC, Los Angeles, CA
Built 1960 Load: 71.9 t ADT: 294,000
Blewett Road
GoodOver: Delta-Mendota Canal
0.84 MI W OF I5, San Joaquin, CA
Built 1948 Load: 71.9 t ADT: 200
U.S. HIGHWAY 101
GoodOver: PACIFIC LUMBER CO RD
01-HUM-101-R51.08, Humboldt, CA
Built 1979 Load: 72.3 t ADT: 10,800
COUNTRY CLUB LANE
GoodOver: NORTH NORCO CHANNEL
300' SW/O RIVER ROAD, Riverside, CA
Built 1985 Load: 72.3 t ADT: 500
WINDING ROAD
GoodOver: NF STANISLAUS RIVER
NO DATA ENTERED, Calaveras, CA
Built 1999 Load: 73.5 t ADT: 50
STATE ROUTE 96
GoodOver: KLAMATH RIVER
02-SIS-096-R5.75, Siskiyou, CA
Built 1970 Load: 73.5 t ADT: 410
COLDWATER CANYON
GoodOver: LOS ANGELES RIVER
0.7 MI S/O US 101, Los Angeles, CA
Built 1951 Load: 73.9 t ADT: 25,040
Showing 25,651-25,700 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |