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
GREAT AMERICA-W237
GoodOver: SAN TOMAS AQUINO CREEK
04-SCL-237-R5.68-SJS, Santa Clara, CA
Built 1994 Load: 22.7 t ADT: 4,500
UVAS RD
GoodOver: LLAGAS CREEK
1.0 MI N/O OAK GLEN AV, Santa Clara, CA
Built 1928 Load: 22.7 t ADT: 1,220
INTERSTATE 5 SB
GoodOver: CORP RR & SISKIYOU AVE
02-SIS-005-R36.72, Siskiyou, CA
Built 1967 Load: 22.7 t ADT: 7,850
STATE ROUTE 99
GoodOver: SUNSET CANAL
02-TEH-099-15.55, Tehama, CA
Built 1920 Load: 22.7 t ADT: 9,300
HOAG ROAD
GoodOver: TEHAMA-COLUSA CANAL
3.4 MI E/O I-5, Tehama, CA
Built 1968 Load: 22.7 t ADT: 3,595
STATE ROUTE 3
GoodOver: DOBBINS GULCH
02-TRI-003-0.54, Trinity, CA
Built 1959 Load: 22.7 t ADT: 495
CO RD 93A
GoodOver: DRY SLOUGH
N OF C.R. # 92 F, Yolo, CA
Built 1968 Load: 22.7 t ADT: 4,248
HORSE MEADOWS ROAD
GoodOver: WILLOW CREEK
NO DATA ENTERED, Alpine, CA
Built 1983 Load: 23.0 t ADT: 8
STATE ROUTE 162
GoodOver: MFK FEATHER RI BIDWELL
03-BUT-162-26.87, Butte, CA
Built 1965 Load: 23.0 t ADT: 1,500
EL NIDO RANCH RD
GoodOver: LAFAYETTE AQUEDUCT
0.1 MI N MT DIABLO, Contra Costa, CA
Built 1969 Load: 23.0 t ADT: 2,843
LIVORNA RD
GoodOver: SAN RAMON CREEK
AT RTE 680, Contra Costa, CA
Built 1971 Load: 23.0 t ADT: 7,924
TOLLHOUSE RD
GoodOver: DRY CREEK
0.8 MI N/O PITTMAN HILL R, Fresno, CA
Built 1925 Load: 23.0 t ADT: 1,600
N JERROLD AVE
GoodOver: 3RD LIFT CANAL
0.7 MI SOUTH OF NEES AVE, Fresno, CA
Built 1945 Load: 23.0 t ADT: 250
STATE ROUTE 162
GoodOver: WALKER CREEK
03-GLE-162-68.16, Glenn, CA
Built 1942 Load: 23.0 t ADT: 3,050
MATTOLE RD
GoodOver: CUNEO CREEK
7 MI W/O HWY 101, Humboldt, CA
Built 1966 Load: 23.0 t ADT: 1,000
ROBINSON ROAD
GoodOver: ALAMO RIVER
1.6 MI W/O SR-115, Imperial, CA
Built 1950 Load: 23.0 t ADT: 52
BEAR MT WINERY RD
GoodOver: ARVIN-EDISON CANAL
0.1 MI E COMANCHE DR, Kern, CA
Built 1966 Load: 23.0 t ADT: 120
JACKSON AVE
GoodOver: KINGS RIV (E CHANNEL)
1.2 MI W 21ST AVE, Kings, CA
Built 1922 Load: 23.0 t ADT: 750
STATE ROUTE 27
GoodOver: BELL CREEK
07-LA-027-14.27-LA, Los Angeles, CA
Built 1949 Load: 23.0 t ADT: 42,000
SAN GABRIEL BLVD
GoodOver: ALHAMBRA WASH
100FT S/O GARVEY AVE, Los Angeles, CA
Built 1935 Load: 23.0 t ADT: 24,637
AVENUE 43
GoodOver: ARROYO SECO CHANNEL
AT SR 110, Los Angeles, CA
Built 1939 Load: 23.0 t ADT: 4,001
FENTEM ROAD
GoodOver: CCID MAIN CANAL
0.4 MI E WHITWORTH RD, Merced, CA
Built 1925 Load: 23.0 t ADT: 120
STATE ROUTE 1
GoodOver: HILLSIDE ABOVE OCEAN
05-MON-001-12.13, Monterey, CA
Built 1985 Load: 23.0 t ADT: 2,000
LARKMEAD LANE
GoodOver: NAPA RIVER
0.6 MI N OF S.R. 29, Napa, CA
Built 1926 Load: 23.0 t ADT: 484
MC COURTNEY ROAD
GoodOver: DOTY RAVINE
0.7 MI N OF WISE RD, Placer, CA
Built 1998 Load: 23.0 t ADT: 2,021
INTERSTATE 10 WB
GoodOver: ADAIR DITCH
08-RIV-010-R100.38, Riverside, CA
Built 1967 Load: 23.0 t ADT: 11,500
STATE ROUTE 62 WB
GoodOver: MISSION CHANNEL
08-RIV-062-R6.01, Riverside, CA
Built 1966 Load: 23.0 t ADT: 9,000
STATE ROUTE 243
GoodOver: SMITH CREEK
08-RIV-243-28.16-BAN, Riverside, CA
Built 1942 Load: 23.0 t ADT: 2,040
INTERSTATE 5 SB
GoodOver: UP RR,BNSF,AMTRAK, I ST
03-SAC-005-23.59-SAC, Sacramento, CA
Built 1969 Load: 23.0 t ADT: 92,500
WHITE ROCK RD
GoodOver: FOLSOM SOUTH CANAL
0.1 MI W SUNRISE BLVD, Sacramento, CA
Built 1970 Load: 23.0 t ADT: 18,672
U.S. HIGHWAY 101
GoodOver: SAN JUAN CREEK
05-SBT-101-4.93, San Benito, CA
Built 1931 Load: 23.0 t ADT: 51,000
RANCHO AVE
GoodOver: UP RR & AMTRAK
300' SOUTH RTE I-10, San Bernardino, CA
Built 1970 Load: 23.0 t ADT: 14,295
WILLOWS RD
GoodOver: VIEJAS CREEK
0.8 MI E/O I-8 EXIT 33, San Diego, CA
Built 1933 Load: 23.0 t ADT: 6,575
STATE ROUTE 99 SB
GoodOver: STANISLAUS RIVER
10-SJ-099-0.00, San Joaquin, CA
Built 1903 Load: 23.0 t ADT: 53,500
STATE ROUTE 9
GoodOver: WEST BRANCH SARATOGA CRK
04-SCL-009-3.60, Santa Clara, CA
Built 1924 Load: 23.0 t ADT: 2,450
MONTEREY ROAD
GoodOver: LLAGAS CREEK
0.25 MI N CALIF AVE, Santa Clara, CA
Built 1938 Load: 23.0 t ADT: 11,440
OLD GRAVENSTEIN HY
GoodOver: BLUCHER CREEK
0.25 MI N OF S.H. 116, Sonoma, CA
Built 1925 Load: 23.0 t ADT: 1,562
STATE ROUTE 99
GoodOver: SALT CREEK OVERFLOW
02-TEH-099-24.78, Tehama, CA
Built 1924 Load: 23.0 t ADT: 9,300
CAPAY RD
GoodOver: RICE CREEK
3.5 MI E OF RD 99 W, Tehama, CA
Built 1919 Load: 23.0 t ADT: 982
MALTON SWITCH ROAD
GoodOver: TEHAMA-COLUSA CANAL
0.2 MI E INGHRAGM RD, Tehama, CA
Built 1965 Load: 23.0 t ADT: 211
MARGUERITE AVE
GoodOver: TEHAMA-COLUSA CANAL
0.1 MI S FLOURNOY RD, Tehama, CA
Built 1965 Load: 23.0 t ADT: 310
ROAD 152
GoodOver: OUTSIDE CREEK
0.1 MI NORTH OF AVE 224, Tulare, CA
Built 1948 Load: 23.0 t ADT: 930
STATE ROUTE 33
GoodOver: SESPE CREEK
07-VEN-033-30.52, Ventura, CA
Built 1932 Load: 23.0 t ADT: 340
BARNARD STREET
GoodOver: LAS LLAJAS CREEK
0.5 MI W STEARNS ST, Ventura, CA
Built 1946 Load: 23.0 t ADT: 3,000
MARYSVILLE RD
GoodOver: OREGON HOUSE CREEK
0.2 MI W OREGON HOUSE JCT, Yuba, CA
Built 1964 Load: 23.0 t ADT: 2,400
INTERSTATE 880
GoodOver: SAN LORENZO CREEK
04-ALA-880-20.11, Alameda, CA
Built 1953 Load: 23.3 t ADT: 222,000
STATE ROUTE 32
GoodOver: PINE CREEK OVERFLOW
03-BUT-032-1.75, Butte, CA
Built 1943 Load: 23.3 t ADT: 11,700
GREGORY LN
GoodOver: CONTRA COSTA CANAL
0.1 MI E PLEASANT HILL RD, Contra Costa, CA
Built 1939 Load: 23.3 t ADT: 9,000
FIRST ST
GoodOver: RODEO CREEK
EAST OF SOUTH 'H' ST, Contra Costa, CA
Built 1965 Load: 23.3 t ADT: 440
STATE ROUTE 162
GoodOver: SACRAMENTO RIVER OVFL
03-GLE-162-81.86, Glenn, CA
Built 1937 Load: 23.3 t ADT: 1,500
Showing 18,051-18,100 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.