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)

California45.2%48.3%GoodFairPoor (structurally 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

C.R. #29

Good

Over: WINTERS CANAL

0.13 MI E OF C.R. #88, Yolo, CA

Built 1920 Load: 16.8 t ADT: 450

COUNTY ROAD 19

Good

Over: SLOUGH S3

0.12 MI WEST OF CR 91B, Yolo, CA

Built 1940 Load: 16.8 t ADT: 650

WOODRUFF LN

Good

Over: SIMMERLY SLOUGH

0.9 MI EAST OF S.R. 70, Yuba, CA

Built 1929 Load: 16.8 t ADT: 900

AVE OF THE STARS

Good

Over: CENTURY CITY MALL

0.1 MI NW OLYMPIC BLVD, Los Angeles, CA

Built 1966 Load: 16.9 t ADT: 23,674

SCHOTT ROAD

Good

Over: LITTLE CHICO CREEK

2.0 MI S/E JCT S.R. 32, Butte, CA

Built 1932 Load: 17.2 t ADT: 223

HILLGATE ROAD

Good

Over: SALT CREEK

0.3 MI E OF ALMOND RD, Colusa, CA

Built 1965 Load: 17.2 t ADT: 952

WATERFRONT RD

Good

Over: PEYTON SLOUGH

0.4 MI E I-680, Contra Costa, CA

Built 1955 Load: 17.2 t ADT: 4,185

OAK HILL ROAD

Good

Over: SQUAW HOLLOW CREEK

0.6 MI S PLEASANT VALY RD, El Dorado, CA

Built 1945 Load: 17.2 t ADT: 1,985

ROAD TT

Good

Over: DRAIN A

0.1 MI S ROAD 41, Glenn, CA

Built 1940 Load: 17.2 t ADT: 62

LAKE BENBOW DR

Good

Over: E BR SOUTH FORK EEL RIV

0.5 MI N SR 101, Humboldt, CA

Built 1932 Load: 17.2 t ADT: 627

OLD SHERWIN GR RD

Good

Over: ROCK CREEK

0.03 MI N/O GORGE ROAD, Inyo, CA

Built 1919 Load: 17.2 t ADT: 520

E LAS TUNAS DR

Good

Over: RUBIO WASH

0.1MI W/O SAN GABRIEL BL, Los Angeles, CA

Built 1911 Load: 17.2 t ADT: 30,846

AVENUE 26

Good

Over: ARROYO SECO CHANNEL

AT SR 110, Los Angeles, CA

Built 1939 Load: 17.2 t ADT: 32,700

JOLON RD

Good

Over: JOLON CREEK

NEAR MISSION RD, Monterey, CA

Built 1942 Load: 17.2 t ADT: 1,800

AMERICAN CANYON RD

Good

Over: AMERICAN CANYON CREEK

0.1 MI EAST OF SR 29, Napa, CA

Built 1940 Load: 17.2 t ADT: 16,278

AIRPORT RD

Good

Over: FAGAN CREEK

1.0 MI W OF SR 12/29, Napa, CA

Built 1930 Load: 17.2 t ADT: 3,991

BARNETT RD

Good

Over: BURTON CREEK

0.1 MI N POPE VALLEY ROAD, Napa, CA

Built 1930 Load: 17.2 t ADT: 181

OAKVILLE CROSS RD

Good

Over: CONN CREEK OVERFLOW

1.3 MI NE SR 29, Napa, CA

Built 1925 Load: 17.2 t ADT: 970

CASE ROAD

Good

Over: SAN JACINTO RIV OVERFLOW

0.83 MI S OF ELLIS AVENUE, Riverside, CA

Built 1928 Load: 17.2 t ADT: 6,189

BELL AVE

Good

Over: MAGPIE CREEK

0.1 MI E OF NORWOOD AVE, Sacramento, CA

Built 1941 Load: 17.2 t ADT: 2,900

SALINAS ROAD

Good

Over: SAN JUAN CREEK

0.4 MI W SAN JUAN CNYN RD, San Benito, CA

Built 1940 Load: 17.2 t ADT: 700

AIRPORT DRIVE

Good

Over: CUCAMONGA CREEK CHANNEL

0.4 MI W ARCHIBALD AV, San Bernardino, CA

Built 1988 Load: 17.2 t ADT: 14,162

FOOTHILL BLVD

Good

Over: SAN ANTONIO OVERFLOW

JUST W/O MONTE VISTA AVE, San Bernardino, CA

Built 1914 Load: 17.2 t ADT: 21,500

OLD RIVER RD

Good

Over: GOPHER CANYON CREEK

0.1MI S/O GOPHER CYN RD, San Diego, CA

Built 1915 Load: 17.2 t ADT: 1,430

VIEJAS BLVD

Good

Over: DESCANSO CREEK

0.9 MI NW/O SR 79, San Diego, CA

Built 1942 Load: 17.2 t ADT: 1,600

KINGS MOUNTAIN RD

Good

Over: WEST UNION CREEK

0.05 MI E TRIPP RD, San Mateo, CA

Built 1905 Load: 17.2 t ADT: 2,075

STATE ROUTE 17

Good

Over: HILLSIDE

04-SCL-017-5.43, Santa Clara, CA

Built 1940 Load: 17.2 t ADT: 78,000

HICKS ROAD

Good

Over: HICKS CREEK

2.3 MI S OF CAMDEN AVENUE, Santa Clara, CA

Built 1919 Load: 17.2 t ADT: 280

PENITENCIA CRK RD

Good

Over: UPPER PENITENCIA CREEK

NEAR ALUM ROCK, Santa Clara, CA

Built 1925 Load: 17.2 t ADT: 500

CASA LOMA ROAD

Good

Over: LLAGAS CREEK

1.5 MI W MCKEAN/UVAS ROAD, Santa Clara, CA

Built 1940 Load: 17.2 t ADT: 180

NELSON CREEK RD

Good

Over: NELSON CREEK

0.7 MI E BIG BEND RD, Shasta, CA

Built 1970 Load: 17.2 t ADT: 100

EASTSIDE RD

Good

Over: OREGON GULCH

0.75 MI S RADIO LANE, Shasta, CA

Built 1945 Load: 17.2 t ADT: 3,728

AGER RD

Good

Over: KLAMATH RIVER, CORP RR

S OF COPCO RD, Siskiyou, CA

Built 1976 Load: 17.2 t ADT: 617

LEISURE TOWN RD

Good

Over: GIBSON CANYON CREEK

2 MI S OF MIDWAY ROAD., Solano, CA

Built 1930 Load: 17.2 t ADT: 640

OLIVE SCHOOL LANE

Good

Over: PUTAH SOUTH CANAL

0.10 MI SW PUTAH CREEK RD, Solano, CA

Built 1955 Load: 17.2 t ADT: 404

BODEGA HIGHWAY

Good

Over: JONIVE CREEK 1

7.3 MI FROM INT W/ SR 1, Sonoma, CA

Built 1922 Load: 17.2 t ADT: 7,000

SONOMA MTN RD

Good

Over: MATANZAS CREEK

0.5 MI S BENNET VALLEY RD, Sonoma, CA

Built 1930 Load: 17.2 t ADT: 1,400

WEST DRY CREEK RD

Good

Over: GRAPE CREEK

5.38 MI NW WESTSIDE RD, Sonoma, CA

Built 1928 Load: 17.2 t ADT: 200

RED BANK ROAD

Good

Over: RED BANK CREEK

2.6 MI W OF BALIS RD, Tehama, CA

Built 1963 Load: 17.2 t ADT: 440

FOOTHILL ROAD

Good

Over: LITTLE ANTELOPE CREEK

2.75 MI NORTH OF 'A' ST, Tehama, CA

Built 1937 Load: 17.2 t ADT: 155

STATE ROUTE 198

Good

Over: SOUTH FORK KAWEAH RIVER

06-TUL-198-37.08, Tulare, CA

Built 1957 Load: 17.2 t ADT: 3,800

AVE 368

Good

Over: SAND CREEK

1.0 MI W OF RD 108, Tulare, CA

Built 1938 Load: 17.2 t ADT: 275

AVENUE 40

Good

Over: FRIANT-KERN CANAL

0.05 MI EAST OF ROAD 184, Tulare, CA

Built 1949 Load: 17.2 t ADT: 350

CENTER STREET

Good

Over: MILL CREEK

0.1 W. OF BEN MADDOX, Tulare, CA

Built 1930 Load: 17.2 t ADT: 400

COUNTY ROAD 99W

Good

Over: BIRD CREEK

0.65 MI SE OF CR 8, Yolo, CA

Built 1919 Load: 17.2 t ADT: 1,196

GREENBACK LANE

Good

Over: BRANCH ARCADE CREEK

100 FT W FAIR OAKS BLVD, Sacramento, CA

Built 1927 Load: 17.3 t ADT: 44,258

N ZEDIKER AVE

Good

Over: MUD CREEK

0.7 MI SOUTH OF SHIELDS, Fresno, CA

Built 1930 Load: 17.5 t ADT: 375

STATE ROUTE 254

Good

Over: BEAR CREEK

01-HUM-254-43.02, Humboldt, CA

Built 1939 Load: 17.5 t ADT: 330

STATE ROUTE 155

Good

Over: FRIANT-KERN CANAL

06-KER-155-R4.06, Kern, CA

Built 1950 Load: 17.5 t ADT: 1,450

N GAFFEY STREET

Good

Over: OPEN LAND

07-LA-110-R0.75-LA, Los Angeles, CA

Built 1935 Load: 17.5 t ADT: 30,470

Showing 17,551-17,600 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.