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

MAGNOLIA AVENUE

Good

Over: ARLINGTON CHANNEL

0.1 MI. W/O BUCHANAN ST., Riverside, CA

Built 1986 Load: 32.4 t ADT: 22,800

BUCHANAN STREET

Good

Over: ARLINGTON CHANNEL

100' S/O MAGNOLIA AVENUE, Riverside, CA

Built 1986 Load: 32.4 t ADT: 10,000

PIERCE STREET

Good

Over: ARLINGTON CHANNEL

0.2 MI. S/O MAGNOLIA AVE., Riverside, CA

Built 1986 Load: 32.4 t ADT: 12,200

INDIANA AVENUE

Good

Over: ARIZONA STREET CHANNEL

0.2 MI. W/O LA SIERRA AVE, Riverside, CA

Built 1986 Load: 32.4 t ADT: 9,260

LINCOLN AVENUE

Good

Over: SOUTH NORCO CHANNEL

0.3 MI. S/O RIVER ROAD, Riverside, CA

Built 1985 Load: 32.4 t ADT: 7,000

ADRIENNE AVENUE

Good

Over: FREDERICK STREET CHANNEL

0.2 MI. E/O ELSWORTH AVE., Riverside, CA

Built 1986 Load: 32.4 t ADT: 3,350

ALESSANDRO BLVD.

Good

Over: FREDERICK STREET CHANNEL

0.01 MI.E/O VETERANS WAY, Riverside, CA

Built 1986 Load: 32.4 t ADT: 3,350

PEREZ ROAD

Good

Over: CATHEDRAL CYN N CHANNEL

0.2 MI. W/O CATHEDRAL CYN, Riverside, CA

Built 1988 Load: 32.4 t ADT: 10,000

WASHINGTON STREET

Good

Over: LA QUINTA CHANNEL

0.2 MI S/O 50TH AVENUE, Riverside, CA

Built 1981 Load: 32.4 t ADT: 23,143

SUN CITY BOULEVARD

Good

Over: GOLF COURSE DRAIN

0.3 MI. S/O ROUSE ROAD, Riverside, CA

Built 1975 Load: 32.4 t ADT: 1,510

CHAMBERS AVENUE

Good

Over: GOLF COURSE DRAIN

0.3 MI. W/O SUN CITY BLVD, Riverside, CA

Built 1975 Load: 32.4 t ADT: 1,140

SUN CITY BOULEVARD

Good

Over: MCCALL BOULEVARD DRAIN

200' N/O MCCALL BLVD., Riverside, CA

Built 1975 Load: 32.4 t ADT: 3,410

DIAZ ROAD

Good

Over: RANCHO CALIF RD CHANNEL

50' N/O RANCHO CALIF. RD., Riverside, CA

Built 1987 Load: 32.4 t ADT: 12,000

MOUNTAIN AVENUE

Good

Over: MERIDIAN STREET CHANNEL

0.1 MI. SE/O ESPLANADE AV, Riverside, CA

Built 1988 Load: 32.4 t ADT: 12,091

4TH STREET

Good

Over: NORTH NORCO CHANNEL

50 FT E OF INTERSTATE 15, Riverside, CA

Built 1989 Load: 32.4 t ADT: 3,421

LIMONITE AVENUE

Good

Over: EQUESTRIAN UC & DITCH

300' W/O DODD STREET, Riverside, CA

Built 1980 Load: 32.4 t ADT: 18,801

IRIS AVENUE

Good

Over: KITCHING STREET CHANNEL

AT KITCHING STREET, Riverside, CA

Built 1987 Load: 32.4 t ADT: 18,700

KRAMERIA STREET

Good

Over: KITCHING STREET CHANNEL

0.2 MI. E/O KITCHING ST., Riverside, CA

Built 1988 Load: 32.4 t ADT: 9,700

LASSELLE STREET

Good

Over: MORENO VALLEY RANCH LAKE

500' S/O IRIS AVENUE, Riverside, CA

Built 1988 Load: 32.4 t ADT: 16,900

BAY AVENUE

Good

Over: KITCHING CHANEL LINE 'Q'

0.3 MI. E/O KITCHING ST., Riverside, CA

Built 1987 Load: 32.4 t ADT: 2,500

WB MURRIETA HS RD

Good

Over: TUCALOCA CREEK

0.2 MI. E/O ROUTE 79 HWY, Riverside, CA

Built 1991 Load: 32.4 t ADT: 9,320

SEMINOLE DRIVE

Good

Over: DESERT HILLS DRAIN

0.3 MI. W/O MILLARD PASS, Riverside, CA

Built 1990 Load: 32.4 t ADT: 6,090

ADAMS AVENUE

Good

Over: WARM SPRINGS CREEK

0.1 MI S/O CORNING PLACE, Riverside, CA

Built 1996 Load: 32.4 t ADT: 1,980

CACTUS AVENUE

Good

Over: SUNNYMEAD AREA DRAINAGE

AT VETERANS WAY, Riverside, CA

Built 1991 Load: 32.4 t ADT: 40,600

CACTUS AVENUE

Good

Over: SUNNYMEAD STORM CHANNEL

100' W/O HEACOCK AVENUE, Riverside, CA

Built 1990 Load: 32.4 t ADT: 33,400

MORENO BEACH DRIVE

Good

Over: STORM CHANNEL LINE F

0.2 MI N/O JF KENNEDY DR., Riverside, CA

Built 1990 Load: 32.4 t ADT: 19,200

CACTUS AVENUE

Good

Over: STORM CHANNEL LINE G

0.5 MI. W/O JF KENNEDY DR, Riverside, CA

Built 1989 Load: 32.4 t ADT: 3,800

GOLDEN AVENUE

Good

Over: LA SIERRA CHANNEL

0.2 MI. S/O COLLETT AVE., Riverside, CA

Built 1991 Load: 32.4 t ADT: 1,000

KNABE ROAD

Good

Over: BROWN CANYON CHANNEL

1.0 MI. S/O WEIRICK ROAD, Riverside, CA

Built 1992 Load: 32.4 t ADT: 13,832

ANTELOPE ROAD

Good

Over: SALT CREEK CHANNEL

0.5 MI. N/O NEWPORT ROAD, Riverside, CA

Built 1991 Load: 32.4 t ADT: 2,500

OVERLAND TRAIL

Good

Over: REDHAWK PARKWAY CHANNEL

100 FT E/O REDHAWK PKWY, Riverside, CA

Built 1991 Load: 32.4 t ADT: 2,000

MARGARITA ROAD

Good

Over: SANTA GERTRUDIS CREEK

0.2 MI. NW/O ROUTE 79 HWY, Riverside, CA

Built 1993 Load: 32.4 t ADT: 20,000

MORAGA ROAD

Good

Over: EMPIRE CREEK

0.2 MI. N/O RANCHO CALIF., Riverside, CA

Built 1990 Load: 32.4 t ADT: 11,000

YNEZ ROAD

Good

Over: EMPIRE CREEK

0.3 MI. N/O RANCHO CALIF, Riverside, CA

Built 1990 Load: 32.4 t ADT: 22,000

CLINTON KEITH ROAD

Good

Over: SLAUGHTERHOUSE CREEK

0.1 MI SW/O GRAND AVENUE, Riverside, CA

Built 1992 Load: 32.4 t ADT: 4,390

MAIN STREET

Good

Over: TEMESCAL CREEK CHANNEL

0.2 MI. N/O RIVER ROAD, Riverside, CA

Built 1972 Load: 32.4 t ADT: 34,000

HAMNER AVENUE

Good

Over: NORTH NORCO CHANNEL

0.3 MI N/O 2ND STREET, Riverside, CA

Built 1980 Load: 32.4 t ADT: 29,360

BUTTERFIELD STAGE

Good

Over: TEMECULA CREEK

0.2 MI. S/O ROUTE 79 HWY., Riverside, CA

Built 1993 Load: 32.4 t ADT: 5,000

WASHINGTON STREET

Good

Over: GOLF COURSE DRAIN

0.6 MI N/O ROUTE 10 FWY, Riverside, CA

Built 1992 Load: 32.4 t ADT: 17,711

OVERLAND DRIVE

Good

Over: PARKING LOT

OVERLAND DR OC @ RTE I-15, Riverside, CA

Built 1998 Load: 32.4 t ADT: 22,000

PLACENTIA AVENUE

Good

Over: RCTC & BNSF RY

0.1 MI. W/O ROUTE 215 FWY, Riverside, CA

Built 1994 Load: 32.4 t ADT: 4,140

PERRIS BOULEVARD

Good

Over: PERRIS VALLEY CHANNEL

1.0 MI. S/O IRIS AVENUE, Riverside, CA

Built 1995 Load: 32.4 t ADT: 26,300

MONTEREY AVENUE

Good

Over: WHITEWATER RIVER

0.9 MI N/O FRED WARING DR, Riverside, CA

Built 1996 Load: 32.4 t ADT: 30,000

PALM CANYON DRIVE

Good

Over: E CATHEDRAL CYN CHANNEL

0.1 MI. SE/O DATE PALM DR, Riverside, CA

Built 1964 Load: 32.4 t ADT: 42,000

SIXTH STREET

Good

Over: OAK STREET CHANNEL

0.2 MI. W/O LINCOLN AVE., Riverside, CA

Built 1993 Load: 32.4 t ADT: 23,000

JEFFERSON AVENUE

Good

Over: YODER WASH

0.4 MI S/O MRTA HT SPS RD, Riverside, CA

Built 1996 Load: 32.4 t ADT: 23,546

ADAMS AVENUE

Good

Over: DRAINAGE LINE F

0.1 MI NW/O KALMIA STREET, Riverside, CA

Built 1997 Load: 32.4 t ADT: 1,916

VINEYARD PKWY

Good

Over: MURRIETA CREEK

0.15 MI SW/O HAYES AVENUE, Riverside, CA

Built 2005 Load: 32.4 t ADT: 1,090

EL DORADO DRIVE

Good

Over: WHITEWATER RIVER

0.1 MI. S/O FRED WARING, Riverside, CA

Built 1995 Load: 32.4 t ADT: 5,000

POMONA ROAD

Good

Over: OAK STREET CHANNEL

0.1 MI. E/O LINCOLN AVE., Riverside, CA

Built 1993 Load: 32.4 t ADT: 3,000

Showing 21,951-22,000 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.