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

W GALE AVE

Good

Over: LOS GATOS CREEK

0.3 MI W OF MONTEREY AVE, Fresno, CA

Built 1948 Load: 16.8 t ADT: 300

PINE FLAT ROAD

Good

Over: HUGHES CREEK

0.1 MI E TRIMMER SPRG RD, Fresno, CA

Built 1948 Load: 16.8 t ADT: 1,000

ROAD DD

Good

Over: HAMBRIGHT CREEK

0.8 MI N ROD 200 N NHVLE, Glenn, CA

Built 1930 Load: 16.8 t ADT: 226

ARAZ ROAD (CR S24)

Good

Over: ARAZ WASH

0.76 MI N/O I-8 EXIT 166, Imperial, CA

Built 1931 Load: 16.8 t ADT: 510

LAKESHORE BLVD

Good

Over: LYONS CREEK

0.5 MI S/O NICE-LUCERNE R, Lake, CA

Built 1931 Load: 16.8 t ADT: 1,066

CIVIC CENTER DR

Good

Over: ARTESIA-NORWALK STORM DN

0.1MI W/O NORWALK BLVD, Los Angeles, CA

Built 1956 Load: 16.8 t ADT: 2,525

SHINN RD

Good

Over: SAN ANTONIO CRK

0.2MI NE/O MNT BALDY RD, Los Angeles, CA

Built 1931 Load: 16.8 t ADT: 1,475

SHADY LANE

Good

Over: ROSS CREEK

NEAR LOCUST ST, Marin, CA

Built 1909 Load: 16.8 t ADT: 1,800

SIR FRANCIS DRAKE

Good

Over: OLEMA CREEK

0.32 MI W SH 1, Marin, CA

Built 1930 Load: 16.8 t ADT: 3,000

ANDERSON VALLEY HW

Good

Over: CON CREEK

1.2 MI N OF SR 128, Mendocino, CA

Built 1938 Load: 16.8 t ADT: 72

MOUNTAIN HOUSE RD

Good

Over: WILSON CREEK

2.8 MI S SR 101, Mendocino, CA

Built 1912 Load: 16.8 t ADT: 572

PLAINSBURG ROAD

Good

Over: DUCK SLOUGH

0.5 MI N MARIPOSA WAY, Merced, CA

Built 1940 Load: 16.8 t ADT: 1,511

MISSION AVENUE

Good

Over: DIBBLEE LATERAL

0.8 MI E PLAINSBURG ROAD, Merced, CA

Built 1930 Load: 16.8 t ADT: 338

CARMEL VALLEY RD

Good

Over: TULARCITOS CREEK

24.5 MI NW ARROYO SECO RD, Monterey, CA

Built 1950 Load: 16.8 t ADT: 4,600

DUHIG ROAD

Good

Over: HUICHICHA CREEK

0.4 MI S LAS AMIGAS RD, Napa, CA

Built 1930 Load: 16.8 t ADT: 582

LARKMEAD LANE

Good

Over: DUTCH HENRY CREEK

0.4 MI S/W SILVERDO TRAIL, Napa, CA

Built 1910 Load: 16.8 t ADT: 484

WEST RIVER ST

Good

Over: DONNER CREEK

0.2 MI NE SR 89, Nevada, CA

Built 1959 Load: 16.8 t ADT: 6,840

SANTA ANA AVENUE

Good

Over: SANTA ANA DELHI CHANNEL

0.1 MI S/O BRISTOL STREET, Orange, CA

Built 1960 Load: 16.8 t ADT: 11,532

MT VERNON RD

Good

Over: NORTH RAVINE

2.0 MI W OF AUBURN, Placer, CA

Built 1935 Load: 16.8 t ADT: 3,041

STATE ROUTE 104

Good

Over: GRIFFITH CREEK

03-SAC-104-5.78, Sacramento, CA

Built 1918 Load: 16.8 t ADT: 4,300

RIO LINDA BLVD

Good

Over: HAGGINWOOD CREEK

AT ACACIA AVE, Sacramento, CA

Built 1940 Load: 16.8 t ADT: 13,699

CHINO AVE

Good

Over: SAN ANTONIO CHANNEL

0.2 MI EAST OF ROUTE 71, San Bernardino, CA

Built 1960 Load: 16.8 t ADT: 18,020

NATIONAL AVE

Good

Over: S BRANCH CHOLLAS CREEK

275 FT E/O 41ST ST, San Diego, CA

Built 1940 Load: 16.8 t ADT: 12,500

MARKET ST

Good

Over: CHOLLAS CREEK

0.1 MI W/O SR15, San Diego, CA

Built 1940 Load: 16.8 t ADT: 21,000

HYDE ST

Good

Over: HILLSIDE

0.1 MI S BAY ST, San Francisco, CA

Built 1931 Load: 16.8 t ADT: 8,000

FREMONT ST

Good

Over: SAN MATEO CREEK

2ND AVE & FREMONT ST, San Mateo, CA

Built 1920 Load: 16.8 t ADT: 2,890

SIERRA DRIVE

Good

Over: SAN MATEO CREEK

EL CERRITO AVE, San Mateo, CA

Built 1930 Load: 16.8 t ADT: 1,000

STATE ROUTE 192

Good

Over: SYCAMORE CANYON CREEK

05-SB-192-5.98-SB, Santa Barbara, CA

Built 1921 Load: 16.8 t ADT: 3,100

WARDELL RD

Good

Over: CALABAZAS CREEK

NEAR CARNIEL AVE, Santa Clara, CA

Built 1926 Load: 16.8 t ADT: 959

JAMIESON RD

Good

Over: CANADA DE LOS OSO

0.1 MI E CANADA RD, Santa Clara, CA

Built 1947 Load: 16.8 t ADT: 50

STEVENS CYN RD

Good

Over: STEVENS CREEK

0.5 MI SW/O MT EDEN RD, Santa Clara, CA

Built 1926 Load: 16.8 t ADT: 810

TILTON AVE

Good

Over: FISHER CREEK

0.1 MI E HALE AVE, Santa Clara, CA

Built 1927 Load: 16.8 t ADT: 2,100

NOBEL AVE

Good

Over: PENITENCIA CREEK

PENITENCIA CREEK RD, Santa Clara, CA

Built 1915 Load: 16.8 t ADT: 1,500

GLENWOOD DR

Good

Over: BEAN CREEK

2.3 MI N SCOTTS VLY DR, Santa Cruz, CA

Built 1915 Load: 16.8 t ADT: 500

WILSON HILL ROAD

Good

Over: NORTH FORK BATTLE CREEK

0.1 MI E ROCK CR RD, Shasta, CA

Built 1935 Load: 16.8 t ADT: 355

WALKER CREEK ROAD

Good

Over: WALKER CREEK

HORSE, Siskiyou, CA

Built 1975 Load: 16.8 t ADT: 50

DENVERTON RD

Good

Over: DENVERTON SLOUGH

0.22 MI S RTE 12, Solano, CA

Built 1925 Load: 16.8 t ADT: 30

WEST CHANNEL RD

Good

Over: SULPHUR SPRING VALLEY CR

0.2 MI S OF 2ND ST, Solano, CA

Built 1943 Load: 16.8 t ADT: 1,578

GUERNEVILLE RD

Good

Over: PETERSON CREEK

4.77 MI INTX WITH SR 116, Sonoma, CA

Built 1921 Load: 16.8 t ADT: 12,700

GUERNEVILLE RD

Good

Over: FOREST VIEW CREEK

4.82 MI INTX WITH SR 116, Sonoma, CA

Built 1921 Load: 16.8 t ADT: 12,700

BODEGA HIGHWAY

Good

Over: JONIVE CREEK

7.5 MI E/O SR 1, Sonoma, CA

Built 1922 Load: 16.8 t ADT: 6,700

WEST DRY CREEK RD

Good

Over: CRANE CREEK

4.3 MI NW WESTSIDE ROAD, Sonoma, CA

Built 1928 Load: 16.8 t ADT: 200

W DRY CREEK ROAD

Good

Over: PINE RIDGE CANYON

1.35 MI NW WESTSIDE RD, Sonoma, CA

Built 1928 Load: 16.8 t ADT: 750

WARD AVENUE

Good

Over: SALADO CREEK

1.0 MI N/O SPERRY AVE, Stanislaus, CA

Built 1928 Load: 16.8 t ADT: 7,550

PRATT ST (RD 96)

Good

Over: TULE RIVER

1.8 MI S/O AVE 184, Tulare, CA

Built 1945 Load: 16.8 t ADT: 540

ROAD 144

Good

Over: COTTONWOOD CREEK

1.25 MI N OF AVE 364, Tulare, CA

Built 1945 Load: 16.8 t ADT: 100

AVE 432

Good

Over: SAND CREEK

0.25 MI E OF SR 63, Tulare, CA

Built 1937 Load: 16.8 t ADT: 625

AVE 428

Good

Over: SAND CREEK

0.25 MI E OF SR 63, Tulare, CA

Built 1939 Load: 16.8 t ADT: 375

WHEELER CYN RD

Good

Over: TODD BARRANCA

2.55 MI N OF FOOTHILL RD, Ventura, CA

Built 1937 Load: 16.8 t ADT: 300

COUNTY ROAD 85

Good

Over: GOODNOW SLOUGH

AT INTERSECTION ROAD 15B, Yolo, CA

Built 1925 Load: 16.8 t ADT: 461

Showing 17,501-17,550 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.