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

Total Bridges

27,040

Public highway bridges in California

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)

California32.45931952662722%34.67455621301775%GoodFairPoorStructurally Deficient
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
Structure
Progressive
Burden @ $100K
$26,753

34

New Jersey

4.59% top marginal rate
Structure
Progressive
Burden @ $100K
$6,796
Selected

06

California

4.60% top marginal rate
Structure
Progressive
Burden @ $100K
$27,040

05

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544

53

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808

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

Poor

Over: FALL RIVER

0.5 MI N OF MCARTHUR RD, Shasta, CA

Built 1950 Load: 2.7 t ADT: 50

ORESTIMBA ROAD

Poor

Over: CCID MAIN CANAL

0.1 MI E DRAPER RD, Stanislaus, CA

Built 1919 Load: 2.9 t ADT: 684

CLARK STREET

Poor

Over: 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 Deficient

Over: MIDDLE FORK FEATHER RIV

0.2 MI S SH 70, Plumas, CA

Built 1954 Load: 3.2 t ADT: 10,046

AVENUE 10

Poor

Over: COTTONWOOD CREEK

JUST E/O ROAD 23, Madera, CA

Built 1950 Load: 3.6 t ADT: 50

S BISHOP AVE

Poor

Over: CRESCENT DITCH

0.64 MI S/O MT WHITNEY AV, Fresno, CA

Built 1950 Load: 3.9 t ADT: 125

All Bridges in California

CAPAY RD

Poor

Over: MOORE CREEK

3.6 MI E OF RD 99 W, Tehama, CA

Built 1919 Load: 16.2 t ADT: 982

CENTER STREET

Poor

Over: MILL CREEK

@ TIPTON STREET, Tulare, CA

Built 1930 Load: 16.2 t ADT: 400

STATE ROUTE 120

Poor

Over: CHINESE CREEK

10-TUO-120-14.73, Tuolumne, CA

Built 1914 Load: 16.2 t ADT: 2,800

CALAVERITAS RD

Poor

Over: WILLOW CREEK

1.2 MI S OF MOUNTAIN RA R, Calaveras, CA

Built 1925 Load: 16.5 t ADT: 256

ROAD 22

Poor

Over: CENTRAL IRRIGATION CANAL

WEST OF S.H. 45, Glenn, CA

Built 1936 Load: 16.5 t ADT: 63

ROAD #48

Poor

Over: BRANCH WALKER CREEK

0.85 MI EAST OF 99W, Glenn, CA

Built 1940 Load: 16.5 t ADT: 647

WOLF CREEK ROAD

Poor

Over: WOLF CREEK

IN SPRING VALLEY LAKE DEV, Lake, CA

Built 1967 Load: 16.5 t ADT: 26

FREEPORT

Poor

Over: SACRAMENTO RIVER

CONCTS FRPRT BL S RIV RD, Sacramento, CA

Built 1929 Load: 16.5 t ADT: 3,112

CHURCH STREET

Poor

Over: M.I.D. LATERAL #2

1 MI N/O SR 132, Stanislaus, CA

Built 1920 Load: 16.5 t ADT: 3,678

SANTA FE AVENUE

Poor

Over: T.I.D. UPPER LATERAL #2

0.1 MI S/O SERVICE ROAD, Stanislaus, CA

Built 1925 Load: 16.5 t ADT: 7,057

FIDDLETOWN ROAD

Poor

Over: NORTH FORK DRY CREEK

0.2 MI E AMERICAN FLAT RD, Amador, CA

Built 1923 Load: 16.8 t ADT: 1,237

SHENANDOAH ROAD

Poor

Over: BIG INDIAN CREEK

1 MI N PLMTH FIDLETOWN RD, Amador, CA

Built 1930 Load: 16.8 t ADT: 3,006

MIDDLE HONCUT RD

Poor

Over: WYANDOTTE CREEK

2.2 MI E OF SH 70, Butte, CA

Built 1920 Load: 16.8 t ADT: 60

ORD FERRY ROAD

Poor

Over: LITTLE CHICO CREEK

1 MI EAST OF RIVER ROAD, Butte, CA

Built 1949 Load: 16.8 t ADT: 1,364

SYCAMORE SLOUGH RD

Poor

Over: SYCAMORE SLOUGH

4.3 MI NE SACHREITER RD, Colusa, CA

Built 1915 Load: 16.8 t ADT: 60

BRIM ROAD

Poor

Over: BEAR CREEK

0.1 MI W BEAR VALLEY ROAD, Colusa, CA

Built 1920 Load: 16.8 t ADT: 15

DELTA ROAD

Poor

Over: MARSH CREEK

0.8 MI E OF SH4, Contra Costa, CA

Built 1965 Load: 16.8 t ADT: 4,147

GARDEN VALLEY RD

Poor

Over: JOHNTOWN CREEK

3.5 MI NE OF S.R. 193, El Dorado, CA

Built 1928 Load: 16.8 t ADT: 1,391

ROAD #61

Poor

Over: WILLOW CREEK

6 MI E OF 99W, Glenn, CA

Built 1949 Load: 16.8 t ADT: 928

IRR ROAD 305

Poor

Over: WATSON CREEK

JUST EAST OF ROAD 306, Glenn, CA

Built 1920 Load: 16.8 t ADT: 120

COUNTY ROAD 200

Poor

Over: BRANCH SALT CREEK

0.8 MI W OF RD #306, Glenn, CA

Built 1925 Load: 16.8 t ADT: 91

RIVER ROAD

Poor

Over: KERN RIVER PARK

EAST OF HARBOR ROAD, Kern, CA

Built 1934 Load: 16.8 t ADT: 450

STATE ROUTE 29

Poor

Over: GARNETT CREEK

04-NAP-029-39.08, Napa, CA

Built 1902 Load: 16.8 t ADT: 12,000

SQUAW VALLEY ROAD

Poor

Over: SQUAW CREEK

2 MI W OF SH 89, Placer, CA

Built 1959 Load: 16.8 t ADT: 2,497

MT VERNON AVE

Poor

Over: SANTA ANA RIVER

0.6 MI S OF RTE I-10, San Bernardino, CA

Built 1967 Load: 16.8 t ADT: 20,000

GREAT AMERICA PKWY

Poor

Over: AGNEW OVERFLOW

JUST WEST OF GOLD STREET, Santa Clara, CA

Built 1957 Load: 16.8 t ADT: 7,500

RAILROAD AVENUE

Poor

Over: WRIGLEY FORD CREEK

NORTH OF WELLER LANE, Santa Clara, CA

Built 1920 Load: 16.8 t ADT: 10

STATE ROUTE 116

Poor

Over: GREEN VALLEY CREEK

04-SON-116-18.66, Sonoma, CA

Built 1930 Load: 16.8 t ADT: 12,400

WOHLER RD

Poor

Over: MARK WEST CREEK

NEAR RIVER RD, Sonoma, CA

Built 1922 Load: 16.8 t ADT: 500

MARSHALL ROAD

Poor

Over: DELTA-MENDOTA CANAL

0.4 MI EAST OF WARD AVE, Stanislaus, CA

Built 1949 Load: 16.8 t ADT: 1,216

FIVE MILE DRIVE

Poor

Over: MULE CREEK

1 MI S/O SH 104, Amador, CA

Built 1925 Load: 17.2 t ADT: 260

CAMP CREEK RD

Poor

Over: CAMP CREEK

3.1 MI NE PULGA RD, Butte, CA

Built 1941 Load: 17.2 t ADT: 20

GREENWOOD ROAD

Poor

Over: NORTH BRNCH GREENWOOD CR

0.3 MI S OF S.R. 193, El Dorado, CA

Built 1927 Load: 17.2 t ADT: 962

ROAD 'Y'

Poor

Over: MCKEE OVERFLOW

1.1 MI N HWY 162, Glenn, CA

Built 1935 Load: 17.2 t ADT: 157

EXCELSIOR AVE

Poor

Over: LAST CHANCE DITCH

0.5 MI W OF 12TH AVE, Kings, CA

Built 1918 Load: 17.2 t ADT: 4,650

PHILO GREENWOOD RD

Poor

Over: NAVARRO RIVER

0.4 MI W OF SR 128, Mendocino, CA

Built 1949 Load: 17.2 t ADT: 418

GUALALA ROAD

Poor

Over: NORTH FORK GUALALA RIVER

2 MI E JCT SR 1, Mendocino, CA

Built 1940 Load: 17.2 t ADT: 97

GIBSON LANE

Poor

Over: EAST FORK RUSSIAN RIVER

0.4 MI W EEL RIVER RD, Mendocino, CA

Built 1955 Load: 17.2 t ADT: 561

LEWIS CREEK RD

Poor

Over: LEWIS CREEK

0.25 MI E OF RTE 25, Monterey, CA

Built 1930 Load: 17.2 t ADT: 150

INTERSTATE 880

Poor

Over: PATTERSON SLOUGH

04-ALA-880-11.80-FMT, Alameda, CA

Built 1957 Load: 17.5 t ADT: 198,000

OROVILLE CHICO HWY

Poor

Over: NANCE CANYON

AT MESA ROAD, Butte, CA

Built 1920 Load: 17.5 t ADT: 300

MALIBU CYN RD

Poor

Over: MALIBU CRK

4.0MI S/O US-101 FWY, Los Angeles, CA

Built 1953 Load: 17.5 t ADT: 20,753

GARRAPATOS ROAD

Poor

Over: PALO COLORADO CREEK

1.2 MI SE SH 1, Monterey, CA

Built 1961 Load: 17.5 t ADT: 130

CANNON STREET

Poor

Over: SANTIAGO CREEK CHANNEL

.2 MI. N/O SANTIAGO C RD, Orange, CA

Built 1970 Load: 17.5 t ADT: 29,100

RIVERSIDE AVE

Poor

Over: UP RR RAIL YARD

0.1 MI S OF I-10, San Bernardino, CA

Built 1959 Load: 17.5 t ADT: 37,000

BROOKSIDE AVE

Poor

Over: MOREY ARROYO 2

0.31 MI NE TENNESSEE ST, San Bernardino, CA

Built 1950 Load: 17.5 t ADT: 20,000

BUNKER STATION RD

Poor

Over: HASS SLOUGH

1.5 MI S BINGHAMTON RD, Solano, CA

Built 1959 Load: 17.5 t ADT: 25

BLOSSOM ROAD

Poor

Over: M.I.D. MAIN CANAL

0.5 MI N/O SR132, Stanislaus, CA

Built 1926 Load: 17.5 t ADT: 500

AVENUE 120

Poor

Over: UP RR

STATE ROUTE 99, Tulare, CA

Built 1962 Load: 17.5 t ADT: 2,850

C. R. 41

Poor

Over: CACHE CREEK

500' E SH 16, Yolo, CA

Built 1930 Load: 17.5 t ADT: 15

Showing 26,001-26,050 of 27,040 bridges

Related

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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.