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

US HIGHWAY 101 SB

Poor

Over: NIPOMO CREEK

05-SLO-101-1.36, San Luis Obispo, CA

Built 1957 Load: 19.1 t ADT: 28,000

INTERSTATE 80 EB

Poor

Over: ULATIS CREEK

04-SOL-080-R26.61-VAC, Solano, CA

Built 1952 Load: 19.1 t ADT: 74,500

STATE ROUTE 120

Poor

Over: STANISLAUS RIVER

10-STA-120-4.26, Stanislaus, CA

Built 1931 Load: 19.1 t ADT: 18,600

N JERROLD AVE

Poor

Over: 2ND LIFT CANAL

0.9 MI NORTH OF NEES AVE, Fresno, CA

Built 1937 Load: 19.4 t ADT: 125

N STATE ST

Poor

Over: YORK CREEK

2.3 MI N OF 101, Mendocino, CA

Built 1980 Load: 19.4 t ADT: 7,012

CARMEL VALLEY RD

Poor

Over: PALOMA CREEK

6.3 MI N ARROYO SECO RD, Monterey, CA

Built 1959 Load: 19.4 t ADT: 290

ST RTE 160 WB, LRT

Poor

Over: AMERICAN RIVER

03-SAC-160-R44.47-SAC, Sacramento, CA

Built 1915 Load: 19.4 t ADT: 26,500

EVANS AVE

Poor

Over: CALTRAIN & UP RR

JUST S. OF CESAR CHAVEZ, San Francisco, CA

Built 1947 Load: 19.4 t ADT: 30,000

STATE ROUTE 92

Poor

Over: SAN FRANCISCO BAY

04-SM-092-R14.44-FSTC, San Mateo, CA

Built 1967 Load: 19.4 t ADT: 120,000

LARKSPUR ST

Poor

Over: SAN LORENZO RIVER

0.2 MI E HIGHWAY 9, Santa Cruz, CA

Built 1957 Load: 19.4 t ADT: 1,500

EAST ZAYANTE RD

Poor

Over: ZAYANTE CREEK

3.2 MI N GRAHAM HILL RD, Santa Cruz, CA

Built 1948 Load: 19.4 t ADT: 2,000

CASSERLY RD

Poor

Over: GREEN VALLEY CREEK

0.3 MI E ROBIN MEADOW LN, Santa Cruz, CA

Built 1941 Load: 19.4 t ADT: 500

BECKWITH ROAD

Poor

Over: M.I.D. LATERAL #7

0.4 MILE W/O DAKOTA RD, Stanislaus, CA

Built 1925 Load: 19.4 t ADT: 4,684

PETTYJOHN RD

Poor

Over: COLD FORK COTTONWOOD CRK

0.9 MI W WEEMASOUL RD, Tehama, CA

Built 1938 Load: 19.4 t ADT: 20

EDGEWATER DRIVE SB

Poor

Over: ELMHURST CANAL

0.2 MI N/W ROLAND WAY, Alameda, CA

Built 1968 Load: 19.8 t ADT: 2,173

WINDING ROAD

Poor

Over: BASIN CREEK

11S12-20.3, Fresno, CA

Built 1968 Load: 19.8 t ADT: 50

U.S. HIGHWAY 101

Poor

Over: BIG LAGOON

01-HUM-101-109.17, Humboldt, CA

Built 1958 Load: 19.8 t ADT: 4,200

WASHINGTON RD

Poor

Over: SAND SLOUGH

1.7 MI W HARMON RD, Merced, CA

Built 1950 Load: 19.8 t ADT: 267

LLANO RD

Poor

Over: COLGAN CREEK

1.1 MI N OF SH 116, Sonoma, CA

Built 1979 Load: 19.8 t ADT: 1,750

UPPER ROAD

Poor

Over: NEWMAN WASTEWAY

0.2 MI S/O HALLOWELL RD, Stanislaus, CA

Built 1953 Load: 19.8 t ADT: 1,097

SERVICE ROAD

Poor

Over: T.I.D. CERES MAIN CANAL

80' W/O MOORE ROAD, Stanislaus, CA

Built 1921 Load: 19.8 t ADT: 4,119

SONORA ROAD

Poor

Over: MARTELLS CREEK

0.1MI E FRANKENHEIMER RD, Stanislaus, CA

Built 1920 Load: 19.8 t ADT: 182

ROAD M112

Poor

Over: DEER CREEK

5.86 MI SE OF M120, Tulare, CA

Built 1939 Load: 19.8 t ADT: 25

OLD DUBLIN ROAD

Poor

Over: SAN LORENZO CREEK

0.5 MI E/O CASTRO VLY RD, Alameda, CA

Built 1927 Load: 20.1 t ADT: 2,120

MAPLE CREEK RD

Poor

Over: MAPLE CREEK

12.5 MI SE OF KORBEL, Humboldt, CA

Built 1955 Load: 20.1 t ADT: 38

EVAN HEWES HWY

Poor

Over: WESTSIDE MAIN CANAL

1.7 MI E/O DUNAWAY RD, Imperial, CA

Built 1963 Load: 20.1 t ADT: 2,225

BROCKMAN RD

Poor

Over: GREESON WASH

0.4 MI N/O KUBLER RD, Imperial, CA

Built 1947 Load: 20.1 t ADT: 550

MONTGOMERY ROAD

Poor

Over: EAST HIGHLINE CANAL

3.2 MI E/O WIEST RD, Imperial, CA

Built 1950 Load: 20.1 t ADT: 50

TELEGRAPH RD

Poor

Over: RIO HONDO RIV

0.5MI W/O PARAMOUNT BLVD, Los Angeles, CA

Built 1951 Load: 20.1 t ADT: 24,717

ROAD 13

Poor

Over: ASH SLOUGH

INT AVE 25 1/2, Madera, CA

Built 1965 Load: 20.1 t ADT: 316

GONZALES RIVER RD

Poor

Over: SALINAS RIVER

0.2 MI E RIVER RD, Monterey, CA

Built 1930 Load: 20.1 t ADT: 1,800

LAWSON VALLEY RD

Poor

Over: LAWSON CREEK

3.4MI E/O SKYLINE TRK TRL, San Diego, CA

Built 1948 Load: 20.1 t ADT: 852

PACKER LAKE ROAD

Poor

Over: SALMON CREEK

WEST OF GOLD LAKES ROAD, Sierra, CA

Built 1960 Load: 20.1 t ADT: 200

DEL VALLE RD

Poor

Over: LAKE DEL VALLE

5 MI SOUTH OF MINES RD, Alameda, CA

Built 1964 Load: 20.4 t ADT: 900

SHELL AVE

Poor

Over: ARROYO DEL HAMBRE

300 FT EST OF ALHAMBRA AV, Contra Costa, CA

Built 1955 Load: 20.4 t ADT: 4,900

WINDING ROAD

Poor

Over: KINGS RIVER

NO DATA ENTERED, Fresno, CA

Built 1946 Load: 20.4 t ADT: 115

STATE ROUTE 78

Poor

Over: PALO VERDE OUTFALL

11-IMP-078-79.19, Imperial, CA

Built 1964 Load: 20.4 t ADT: 2,150

SINCLAIR ROAD

Poor

Over: ALAMO RIVER

3.3 MI W/O SR 111, Imperial, CA

Built 1994 Load: 20.4 t ADT: 550

GAGE AVE

Poor

Over: LOS ANGELES RIV

0.1MI W/O I-710 FWY, Los Angeles, CA

Built 1940 Load: 20.4 t ADT: 27,454

STATE ROUTE 1

Poor

Over: LAGUNITAS CREEK

04-MRN-001-28.51, Marin, CA

Built 1929 Load: 20.4 t ADT: 3,500

BAXTER ROAD

Poor

Over: S FORK DUTCHMAN CREEK

0.2 MI N BUCHAN HOLLOW RD, Merced, CA

Built 1941 Load: 20.4 t ADT: 35

E205-N5 CONNECTOR

Poor

Over: PARADISE CUT

10-SJ-205-R13.11, San Joaquin, CA

Built 1970 Load: 20.4 t ADT: 21,500

HUASNA RD

Poor

Over: ARROYO GRANDE CREEK

0.04 MI SE LOPEZ DR, San Luis Obispo, CA

Built 1923 Load: 20.4 t ADT: 966

MAIN ROAD

Poor

Over: LITTLE BUTANO CREEK

BUTANO ST PRK 0.4 MI IN, San Mateo, CA

Built 1980 Load: 20.4 t ADT: 70

SAN ANDREAS RD

Poor

Over: WATSONVILLE SLOUGH

0.4 MI NW BEACH RD, Santa Cruz, CA

Built 1941 Load: 20.4 t ADT: 6,000

EL PRADO ROAD

Poor

Over: EASTON CREEK

JUST SE OF CANYON RD, San Mateo, CA

Built 1956 Load: 20.5 t ADT: 200

COLLEGE CITY RD

Poor

Over: CLARKS DITCH

WHITE ROAD, Colusa, CA

Built 1976 Load: 20.7 t ADT: 402

ROAD 67

Poor

Over: HOWARD SLOUGH

1.8 MI EAST OF CR Z, Glenn, CA

Built 1920 Load: 20.7 t ADT: 93

TEMPLE CITY BLVD

Poor

Over: EATON WASH

1.0MI E/O ROSEMEAD BLVD, Los Angeles, CA

Built 1956 Load: 20.7 t ADT: 13,481

PIONEER RD

Poor

Over: OUTSIDE CANAL

0.2 MI E VOLTA RD, Merced, CA

Built 1960 Load: 20.7 t ADT: 1,360

Showing 26,101-26,150 of 27,040 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.