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

E PALM CANYON DR

Good

Over: PALM CANYON WASH

0.5 MI. E/O FARREL DRIVE, Riverside, CA

Built 1956 Load: 15.6 t ADT: 29,242

EAST BIDWELL ST

Good

Over: HUMBUG CREEK

0.1 MI SE BLUE RAVINE RD, Sacramento, CA

Built 1925 Load: 15.6 t ADT: 10,000

PENITENCIA CRK RD

Good

Over: UPPER PENITENCIA CREEK

NEAR BOULDER DRIVE, Santa Clara, CA

Built 1909 Load: 15.6 t ADT: 1,390

LAGUNA AVE

Good

Over: FISHER CREEK

0.1 MI W SANTA TERESA BLV, Santa Clara, CA

Built 1945 Load: 15.6 t ADT: 160

STATE ROUTE 236

Good

Over: BOULDER CREEK

05-SCR-236-1.03, Santa Cruz, CA

Built 1921 Load: 15.6 t ADT: 1,350

GAS PT RD

Good

Over: ALICE CREEK

4.6 MI WEST OF I-5, Shasta, CA

Built 1940 Load: 15.6 t ADT: 2,577

GAS POINT ROAD

Good

Over: DRY CREEK

7.4 MI WEST OF I-5, Shasta, CA

Built 1920 Load: 15.6 t ADT: 1,225

SOUTH FORK

Good

Over: SO. FK. SACRAMENTO RIVER

NO DATA ENTERED, Siskiyou, CA

Built 1966 Load: 15.6 t ADT: 50

GUERNEVILLE RD

Good

Over: ABRAMSON CREEK

4.0 MI INTX WITH SR 116, Sonoma, CA

Built 1921 Load: 15.6 t ADT: 12,700

LAWNDALE RD

Good

Over: SONOMA CREEK

WARM SPRINGS ROAD, Sonoma, CA

Built 1900 Load: 15.6 t ADT: 550

VADNEY AVENUE

Good

Over: HOAG SLOUGH

1.6 KM S/O SOUTH AVE, Tehama, CA

Built 1996 Load: 15.6 t ADT: 141

AVE 384

Good

Over: SAND CREEK

AVE 384 @ RD 108, Tulare, CA

Built 1961 Load: 15.6 t ADT: 1,430

ROAD 240

Good

Over: LEWIS CREEK

0.05 MI S OF AVE 224, Tulare, CA

Built 1961 Load: 15.6 t ADT: 50

CAMARILLO ST.

Good

Over: LONG GRADE CANYON CREEK

1.4 MI SE OF LEWIS RD, Ventura, CA

Built 1941 Load: 15.6 t ADT: 4,000

COUNTY ROAD 28

Good

Over: UNION SCHOOL SLOUGH

0.67 MI W OF C.R. #91B, Yolo, CA

Built 1940 Load: 15.6 t ADT: 77

COUNTY ROAD 91B

Good

Over: OAT CREEK

0.36 MI NORTH OF CR #99W, Yolo, CA

Built 1930 Load: 15.6 t ADT: 10

LOS GATOS ROAD

Good

Over: LOS GATOS CREEK

14.4 MI W OF DERRICK BLVD, Fresno, CA

Built 1947 Load: 15.9 t ADT: 100

LOS GATOS ROAD

Good

Over: LOS GATOS CREEK

14.55 MI W DERRICK BLVD, Fresno, CA

Built 1947 Load: 15.9 t ADT: 100

CO RD 200\NEWVILLE

Good

Over: STONY CREEK IRRG CANAL

0.6 MI W OF I-5, Glenn, CA

Built 1940 Load: 15.9 t ADT: 1,448

MORGAN SLOUGH ROAD

Good

Over: MORGAN SLOUGH

NORTH OF CAMP WEOTT ROAD, Humboldt, CA

Built 1984 Load: 15.9 t ADT: 31

CAMILLO ST

Good

Over: SIERRA MADRE WASH

0.5MI W/O SANTA ANITA AVE, Los Angeles, CA

Built 1928 Load: 15.9 t ADT: 155

HUNTINGTON DR

Good

Over: SAWPIT WASH

0.2MI W/O MOUNTAIN AVE, Los Angeles, CA

Built 1928 Load: 15.9 t ADT: 29,916

ROWLAND WAY

Good

Over: NOVATO CREEK

0.25 MI N ROWLAND BLVD, Marin, CA

Built 1992 Load: 15.9 t ADT: 2,735

ELM AVE

Good

Over: ARROYO SECO RIVER

ARROYO SECO ROAD, Monterey, CA

Built 1943 Load: 15.9 t ADT: 640

WOODEN VLY CROS RD

Good

Over: SUISUN CREEK

0.06 MI NE WOODEN VALY RD, Napa, CA

Built 1930 Load: 15.9 t ADT: 100

SOUTH PINE STREET

Good

Over: DEER CREEK

0.1 MI SOUTH OF BROAD ST, Nevada, CA

Built 1996 Load: 15.9 t ADT: 3,980

N CLAREMONT

Good

Over: SAN MATEO CREEK

NORTH OF 1ST ST, San Mateo, CA

Built 1920 Load: 15.9 t ADT: 1,830

STATE ROUTE 17

Good

Over: MADRONE DR

04-SCL-017-1.14, Santa Clara, CA

Built 1938 Load: 15.9 t ADT: 59,900

CHURCH ST

Good

Over: MILLER SLOUGH

NEAR HOWSON ST, Santa Clara, CA

Built 1960 Load: 15.9 t ADT: 7,469

WELBURN AVE

Good

Over: MILLER SLOUGH

NEAR CHURCH ST, Santa Clara, CA

Built 1950 Load: 15.9 t ADT: 10,617

E ZAYANTE RD

Good

Over: ZAYANTE CREEK

1 MI N GRAHAM HILL RD, Santa Cruz, CA

Built 1939 Load: 15.9 t ADT: 5,800

BIG BEND RD

Good

Over: ROARING CREEK

5.4 MI N OF S.R. 299, Shasta, CA

Built 1923 Load: 15.9 t ADT: 550

C. R. 87B

Good

Over: COTTONWOOD SLOUGH

0.55 MI S OF C. R. 23, Yolo, CA

Built 1930 Load: 15.9 t ADT: 66

CASTRO VALLEY BLVD

Good

Over: LAKE CHABOT CREEK

JUST W/O LAKE, Alameda, CA

Built 1900 Load: 16.2 t ADT: 33,600

REDWOOD RD

Good

Over: REDWOOD RD FLD CNTRL CH

NEAR LESSLEY AVE, Alameda, CA

Built 1900 Load: 16.2 t ADT: 29,900

SAN LEANDRO, UP RR

Good

Over: LION CREEK

NEAR 69TH AVE, Alameda, CA

Built 1940 Load: 16.2 t ADT: 20,904

OLD SACRAMENTO RD

Good

Over: LITTLE INDIAN CREEK

0.2 MI W OF LATROBE RD, Amador, CA

Built 1930 Load: 16.2 t ADT: 375

CANA HWY

Good

Over: DIANE'S DITCH

4.2 MI W STATE HWY 99, Butte, CA

Built 1921 Load: 16.2 t ADT: 276

MESA RD

Good

Over: E BR DURHAM MUTUAL DITCH

0.35 MI W OROVLE CHICO HY, Butte, CA

Built 1920 Load: 16.2 t ADT: 50

LEESVILLE-LODGA RD

Good

Over: INDIAN CREEK

1.0 MI S LDOGA-STNYFD RD, Colusa, CA

Built 1930 Load: 16.2 t ADT: 69

WHITE ROAD

Good

Over: RD 108 10Q CANAL

1.4 MI W/O SR 45/BROWNING, Colusa, CA

Built 1926 Load: 16.2 t ADT: 59

23RD ST

Good

Over: WILDCAT CREEK

0.2 MI S SAN PABLO AVE, Contra Costa, CA

Built 1940 Load: 16.2 t ADT: 13,993

SHELL AVE

Good

Over: OIL REFINERY PIPE UC

0.2 MI N PACHECO BLVD, Contra Costa, CA

Built 1940 Load: 16.2 t ADT: 4,386

N COLLEGE AVE

Good

Over: DRY CREEK CANAL

SOUTH OF ELIZABETH ST, Fresno, CA

Built 1935 Load: 16.2 t ADT: 662

E FRANKLIN AVE

Good

Over: DRY CREEK CANAL

WEST OF YOSEMITE AVE, Fresno, CA

Built 1930 Load: 16.2 t ADT: 325

ROAD Y

Good

Over: SACRAMENTO RIV OVERFLOW

0.3 MI S HWY 162, Glenn, CA

Built 1940 Load: 16.2 t ADT: 319

STATE ROUTE 33

Good

Over: MCKITTRICK WASH

06-KER-033-35.89, Kern, CA

Built 1941 Load: 16.2 t ADT: 1,400

OAK STREET 19TH ST

Good

Over: STINE CANAL

19TH STREET, Kern, CA

Built 1930 Load: 16.2 t ADT: 24,430

VALLEY WEST ROAD

Good

Over: BUENA VISTA CREEK

.75 MILE WEST OF SH 119, Kern, CA

Built 1947 Load: 16.2 t ADT: 1,400

P STREET

Good

Over: KERN ISLAND CANAL

0.1 MI N BRUNDAGE LANE, Kern, CA

Built 1948 Load: 16.2 t ADT: 5,594

Showing 17,301-17,350 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.