State profile · Below median Poor share

California bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in California, based on the FHWA National Bridge Inventory.

27,040
Public bridges
32.5%
Good condition
4.6%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition share 15.3%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

California45.2%48.3%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below California on the same metric.

OH

Ohio

4.54% top marginal rate
Structure
Progressive
Burden @ $100K
$26,753

NJ

New Jersey

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

CA

California

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

AR

Arkansas

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

WA

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

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

Poor

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

N580-WEST ST OFF-R

Unknown

Over: MARTIN LUTHER KING JR WY

04-ALA-580-45.25-OAK, Alameda, CA

Built 1961 ADT: 36,028

ROUTE 580

Unknown

Over: WEST STREET

04-ALA-580-45.39-OAK, Alameda, CA

Built 1961 ADT: 7,000

INTERSTATE 580

Unknown

Over: MARKET STREET

04-ALA-580-45.56-OAK, Alameda, CA

Built 1961 ADT: 15,000

E&W580-E24 CONNCTR

Unknown

Over: I580,SR24,BARTD,CONN,ST

04-ALA-580-45.23-OAK, Alameda, CA

Built 1970 ADT: 5,000

E&W580-W980 CNNCTR

Unknown

Over: I580,980,BARTD,CONNS,STS

04-ALA-580-45.14-OAK, Alameda, CA

Built 1970 ADT: 107,500

E980-580 CONNECTOR

Unknown

Over: I 980 & I 580 & STS

04-ALA-980-1.98-OAK, Alameda, CA

Built 1970 ADT: 5,000

W24-E&W580 CONNCTR

Unknown

Over: I 580,SR 24,MACARTHUR,

04-ALA-024-R1.88-OAK, Alameda, CA

Built 1970 ADT: 205,000

ARDLEY AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R41.93-OAK, Alameda, CA

Built 1963 ADT: 175,000

BRUCE ST-S580 ON R

Unknown

Over: 14TH AVENUE

04-ALA-580-R42.07-OAK, Alameda, CA

Built 1963 ADT: 2,500

INTERSTATE 580

Unknown

Over: 14TH AVENUE

04-ALA-580-R42.07-OAK, Alameda, CA

Built 1963 ADT: 2,500

INTERSTATE 580 EB

Unknown

Over: BEAUMONT AVE

04-ALA-580-R42.18-OAK, Alameda, CA

Built 1963 ADT: 5,500

INTERSTATE 580 WB

Unknown

Over: BEAUMONT AVE

04-ALA-580-R42.18-OAK, Alameda, CA

Built 1963 ADT: 5,500

13TH AVENUE

Unknown

Over: INTERSTATE 580

04-ALA-580-R42.37-OAK, Alameda, CA

Built 1963 ADT: 164,000

PEDESTRIAN WALKWAY

Unknown

Over: I 580 WB ON & OFF

04-ALA-580-43.76-OAK, Alameda, CA

Built 1962 ADT: 19,200

PEDESTRIAN WALKWAY

Unknown

Over: INTERSTATE 580 & RAMPS

04-ALA-580-43.75-OAK, Alameda, CA

Built 1962 ADT: 4,000

LAKE PARK AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-43.23-OAK, Alameda, CA

Built 1962 ADT: 190,000

INTERSTATE 580

Unknown

Over: PARK BLVD

04-ALA-580-42.67-OAK, Alameda, CA

Built 1962 ADT: 22,979

INTERSTATE 580

Unknown

Over: PARK BLVD

04-ALA-580-42.67-OAK, Alameda, CA

Built 1962 ADT: 22,979

INTERSTATE 580

Unknown

Over: MACARTHUR BLVD

04-ALA-580-R39.77-OAK, Alameda, CA

Built 1965 ADT: 5,200

INTERSTATE 580

Unknown

Over: MACARTHUR BLVD

04-ALA-580-R39.91-OAK, Alameda, CA

Built 1964 ADT: 3,500

INTERSTATE 580

Unknown

Over: HIGH STREET

04-ALA-580-R40.08-OAK, Alameda, CA

Built 1963 ADT: 3,500

38TH AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R40.39-OAK, Alameda, CA

Built 1963 ADT: 274,000

35TH AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R40.65-OAK, Alameda, CA

Built 1963 ADT: 274,000

INTERSTATE 580

Unknown

Over: COOLIDGE AVE

04-ALA-580-R41.14-OAK, Alameda, CA

Built 1963 ADT: 3,500

BOSTON AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R41.33-OAK, Alameda, CA

Built 1963 ADT: 169,000

INTERSTATE 580

Unknown

Over: FRUITVALE AVE

04-ALA-580-R41.43-OAK, Alameda, CA

Built 1963 ADT: 5,300

SHEFFIELD AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R41.75-OAK, Alameda, CA

Built 1963 ADT: 175,000

MACARTHUR BLVD NB

Unknown

Over: E580-MACARTHUR BL OFF-RP

04-ALA-580-42.80-OAK, Alameda, CA

Built 1962 ADT: 13,900

PEDESTRIAN WALKWAY

Unknown

Over: INTERSTATE 580

04-ALA-580-R39.93-OAK, Alameda, CA

Built 1964 ADT: 134,000

EAST 12TH STREET

Unknown

Over: STATE ROUTE 77

04-ALA-077-0.37-OAK, Alameda, CA

Built 1962 ADT: 15,800

GRAND AVENUE

Unknown

Over: INTERSTATE 580

04-ALA-580-R33.94-SLN, Alameda, CA

Built 1964 ADT: 144,000

INTERSTATE 580

Unknown

Over: W580-SAN JOAQUIN AV OFF

04-ALA-580-R34.40-SLN, Alameda, CA

Built 1964 ADT: 13,000

ROUTE 580

Unknown

Over: ESTUDILLO AVENUE

04-ALA-580-R34.48-SLN, Alameda, CA

Built 1964 ADT: 5,500

INTERSTATE 580

Unknown

Over: DUTTON AVE

04-ALA-580-R34.81-SLN, Alameda, CA

Built 1964 ADT: 4,000

INTERSTATE 580

Unknown

Over: FTHLL BLVD UC (OFF-RAMP)

04-ALA-580-R35.10-OAK, Alameda, CA

Built 1964 ADT: 2,000

150TH AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R32.84, Alameda, CA

Built 1965 ADT: 128,000

FAIRMONT DRIVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R32.72, Alameda, CA

Built 1965 ADT: 158,000

159TH AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R32.32, Alameda, CA

Built 1965 ADT: 128,000

FONTAINE ST

Unknown

Over: INTERSTATE 580

04-ALA-580-R37.34-OAK, Alameda, CA

Built 1965 ADT: 153,000

KELLER AVE

Unknown

Over: INTERSTATE 580

04-ALA-580-R37.80-OAK, Alameda, CA

Built 1965 ADT: 157,000

INTERSTATE 580

Unknown

Over: EDWARDS AVE

04-ALA-580-R38.31-OAK, Alameda, CA

Built 1965 ADT: 3,300

S13-E580 CONNECTOR

Unknown

Over: I 580 & CALAVERAS AVE

04-ALA-013-4.27-OAK, Alameda, CA

Built 1965 ADT: 6,000

INTERSTATE 580 WB

Unknown

Over: INTERSTATE 205

04-ALA-580-0.39R, Alameda, CA

Built 1966 ADT: 122,000

MOUNTAIN-580 ON RP

Unknown

Over: SR 13 NB, MOUNTAIN BL

04-ALA-580-R39.15-OAK, Alameda, CA

Built 1965 ADT: 10,000

STATE ROUTE 13 NB

Unknown

Over: CALAVERAS AVE

04-ALA-013-4.32-OAK, Alameda, CA

Built 1965 ADT: 6,000

RAMP/CONNECTOR 580

Unknown

Over: 30TH STREET

04-ALA-580-45.22-OAK, Alameda, CA

Built 1969 ADT: 800

INTERSTATE 680

Unknown

Over: SR 84 (CALAVERAS ROAD)

04-ALA-680-R11.03, Alameda, CA

Built 1963 ADT: 25,050

INTERSTATE 680

Unknown

Over: STATE ROUTE 84 SB & OFF

04-ALA-680-R11.81, Alameda, CA

Built 1967 ADT: 25,500

OAK KNOLL BLVD

Unknown

Over: INTERSTATE 580

04-ALA-580-R36.76-OAK, Alameda, CA

Built 1965 ADT: 153,000

INTERSTATE 580

Unknown

Over: GOLF LINKS ROAD

04-ALA-580-R36.34-OAK, Alameda, CA

Built 1965 ADT: 1,500

Showing 101-150 of 27,040 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.