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
ANNAPOLIS RD
FairOver: GUALALA RIV (CLARK XING)
INTRX STWRT PT-SKGSSP RD, Sonoma, CA
Built 1920 Load: 17.2 t ADT: 800
BOHEMIAN HWY
FairOver: DUTCH BILL CREEK
5.4 MI FROM SR 116, Sonoma, CA
Built 1935 Load: 17.2 t ADT: 2,100
SAN LUIS ROAD
FairOver: SCHELL CREEK
JUST EAST OF SR 12, Sonoma, CA
Built 1970 Load: 17.2 t ADT: 100
DUNBAR RD
FairOver: CALABAZAS CREEK
0.1 MI N SYLVIA DRIVE, Sonoma, CA
Built 1915 Load: 17.2 t ADT: 800
KING RIDGE RD
FairOver: WARD CREEK
0.2 MI N FORT ROSS RD, Sonoma, CA
Built 1973 Load: 17.2 t ADT: 200
TIM BELL ROAD
FairOver: DRY CREEK
0.8 MI S CLARIBEL ROAD, Stanislaus, CA
Built 1925 Load: 17.2 t ADT: 232
GAFFERY ROAD
FairOver: DELTA-MENDOTA CANAL
1.5 MILES W OF WELTY ROAD, Stanislaus, CA
Built 1948 Load: 17.2 t ADT: 495
COFFEE ROAD
FairOver: M.I.D. LATERAL #6
0.2 MI S CLARIBEL RD, Stanislaus, CA
Built 1923 Load: 17.2 t ADT: 10,981
MILNES ROAD
FairOver: M.I.D. MAIN CANAL
0.2 MI E LANGWORTH RD, Stanislaus, CA
Built 1922 Load: 17.2 t ADT: 3,475
LAKE ROAD
FairOver: HIGHLINE CANAL
0.6 M E/O LAMPLEY RD, Stanislaus, CA
Built 1959 Load: 17.2 t ADT: 1,504
SUBACO RD
FairOver: ROBBINS (DRAINAGE) CANAL
@ RECLAMATION RD, Sutter, CA
Built 1935 Load: 17.2 t ADT: 23
SHERWOOD BLVD
FairOver: MILL CREEK
0.1 MI SOUTH OF TAFT STR, Tehama, CA
Built 1940 Load: 17.2 t ADT: 200
PASKENTA RD
FairOver: COYOTE CREEK
AT GYLE RD, Tehama, CA
Built 1938 Load: 17.2 t ADT: 660
RED BANK RD
FairOver: VALLE GULCH
0.5 MI E LOWERY RD, Tehama, CA
Built 1954 Load: 17.2 t ADT: 440
ROAD 216
FairOver: FRIANT-KERN CANAL
0.2 MI NORTH OF AVE 264, Tulare, CA
Built 1949 Load: 17.2 t ADT: 400
ROAD M99
FairOver: SALMON CREEK
11.94 MI SE OF M50, Tulare, CA
Built 1967 Load: 17.2 t ADT: 390
ROAD 152
FairOver: FRIANT-KERN CANAL
0.5 MI NORTH OF AVE 420, Tulare, CA
Built 1949 Load: 17.2 t ADT: 50
AVE 224 (LINDMORE)
FairOver: FRIANT-KERN CANAL
0.25 MI EAST OF ROAD 228, Tulare, CA
Built 1949 Load: 17.2 t ADT: 375
AVE 200 (7TH AVE)
FairOver: FRIANT-KERN CANAL
0.25 MI WEST OF ROAD 232, Tulare, CA
Built 1949 Load: 17.2 t ADT: 275
AVENUE 112
FairOver: FRIANT-KERN CANAL
AT ROAD 208, Tulare, CA
Built 1949 Load: 17.2 t ADT: 375
SULPHUR MOUTAIN RD
FairOver: DENNISON CREEK
0.1 MI S OF S.R. 150, Ventura, CA
Built 1930 Load: 17.2 t ADT: 300
C. R. 49
FairOver: HAMILTON CREEK
0.11 MI N/O C. R. 50, Yolo, CA
Built 1911 Load: 17.2 t ADT: 106
COUNTY ROAD 12A
FairOver: OAT CREEK
0.34 MI EAST OF CR #87, Yolo, CA
Built 1940 Load: 17.2 t ADT: 494
HALE RD
FairOver: REEDS CREEK
0.6 MI E BERNICE AVE, Yuba, CA
Built 1930 Load: 17.2 t ADT: 80
LOCUST AVE
FairOver: AYO CORTE MADERA DEL PRE
250 FT N OF MILLER AVE, Marin, CA
Built 1934 Load: 17.3 t ADT: 4,500
STATE ROUTE 89
FairOver: WEST FORK CARSON RIVER
10-ALP-089-21.31, Alpine, CA
Built 1940 Load: 17.5 t ADT: 2,150
DURNELL ROAD
FairOver: BUTTE CREEK
2.25 MI N NELSON RD, Butte, CA
Built 1904 Load: 17.5 t ADT: 48
BENNETT ROAD
FairOver: JORDAN CREEK
1.3 MI W HAMILTON CANA HY, Butte, CA
Built 1939 Load: 17.5 t ADT: 194
HUMBOLDT RD
FairOver: BUTTE CREEK
9.1 MI E S.R. 32, Butte, CA
Built 1938 Load: 17.5 t ADT: 320
ANITA RD
FairOver: ROCK CREEK
0.9 MI W/O ST HWY 99, Butte, CA
Built 1937 Load: 17.5 t ADT: 463
BRADFORD ROAD
FairOver: LITTLE DRY CREEK
2.55 MI W OF COLONY RD, Butte, CA
Built 1928 Load: 17.5 t ADT: 24
STATE ROUTE 49
FairOver: ANGELS CREEK
10-CAL-049-7.16-ANG, Calaveras, CA
Built 1909 Load: 17.5 t ADT: 9,100
TENNENT AVE
FairOver: PINOLE CREEK
0.3 MI S SAN PABLO AVE, Contra Costa, CA
Built 1967 Load: 17.5 t ADT: 8,000
OLD GASQUET TOLL
FairOver: WEST FORK PATRICKS CREEK
3.5 MI FROM RTE 199, Del Norte, CA
Built 1960 Load: 17.5 t ADT: 30
N ROLINDA AVE
FairOver: HOUGHTON CANAL
0.5 MI SOUTH OF BELMONT, Fresno, CA
Built 1942 Load: 17.5 t ADT: 340
N DICKENSON AVE
FairOver: HERNDON CANAL
AT BARSTOW AVE, Fresno, CA
Built 1940 Load: 17.5 t ADT: 300
STATE ROUTE 96
FairOver: HILLSIDE
01-HUM-096-8.26, Humboldt, CA
Built 1985 Load: 17.5 t ADT: 2,900
ZANES RD
FairOver: ELK RIVER
0.1 MI W ELK RIVER RD, Humboldt, CA
Built 1936 Load: 17.5 t ADT: 38
OLD MATTOLE RD
FairOver: MCNUTT CREEK
0.49 MI N OF MATTOLE RD, Humboldt, CA
Built 1926 Load: 17.5 t ADT: 100
EAGLE LAKE RD
FairOver: PINE CREEK
10.6 MI S.W. OF SR 139, Lassen, CA
Built 1965 Load: 17.5 t ADT: 100
TRAVIS LANE
FairOver: BROCKMAN SLOUGH
.3 MI E/O JOHNSTONVILLE R, Lassen, CA
Built 1981 Load: 17.5 t ADT: 100
KESTER AVE
FairOver: LOS ANGELES RIVER
200' NORTH OF US-101, Los Angeles, CA
Built 1972 Load: 17.5 t ADT: 30,450
STATE ROUTE 152 WB
FairOver: ARROYO CANAL
10-MER-152-23.93, Merced, CA
Built 1921 Load: 17.5 t ADT: 9,300
OLD STATE ROUTE 99
FairOver: MILES CREEK
0.45 MI SE/O HEALY RD, Merced, CA
Built 1938 Load: 17.5 t ADT: 384
VALLEY GREEN DR
FairOver: CARMEL RIVER
0.6 MI S CARMEL VALLEY RD, Monterey, CA
Built 1963 Load: 17.5 t ADT: 1,400
HEDGESIDE AVENUE
FairOver: MILLIKEN CREEK
0.4 MI NW RTE 121, Napa, CA
Built 1925 Load: 17.5 t ADT: 1,033
AMAPOLA AVENUE
FairOver: HANDY CREEK
0.2 MI E/O ORANGE PK BLVD, Orange, CA
Built 1937 Load: 17.5 t ADT: 1,000
COMBIE ROAD
FairOver: WOOLEY CREEK
0.4 M W PLACER HILLS RD, Placer, CA
Built 1930 Load: 17.5 t ADT: 9,104
BEAR VALLEY RD
FairOver: MOJAVE RIVER
5 MI E RTE I-15, San Bernardino, CA
Built 1963 Load: 17.5 t ADT: 46,361
NAT TRAILS HWY
FairOver: FONDA DITCH
11 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 Load: 17.5 t ADT: 230
Showing 8,901-8,950 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.