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

BNSF, METRO

Unknown

Over: C STREET

0.75 MI W MT VERNON AVE, San Bernardino, CA

Built 1958 ADT: 10,000

COLTON HIGH SC POC

Unknown

Over: RANCHO AVE

0.25 MI N RTE 1-10, San Bernardino, CA

Built 1961 ADT: 10,000

UP RR

Unknown

Over: HAVEN AVENUE

0.25 MI SOUTH OF I-10, San Bernardino, CA

Built 1986 ADT: 48,257

PEDESTRIAN ACCESS

Unknown

Over: CARNELIAN STREET

0.3 MI N OF RTE 66, San Bernardino, CA

Built 1966 ADT: 28,800

BNSF RR

Unknown

Over: N STREET

0.18 MI W LA CADENA DR, San Bernardino, CA

Built 1969 ADT: 200

UP RR

Unknown

Over: VALLEY BLVD

0.5 MI E PEPPER ST, San Bernardino, CA

Built 1966 ADT: 5,000

UP RR

Unknown

Over: HAVEN AVENUE

150' N OF MISSION, San Bernardino, CA

Built 1993 ADT: 28,995

POC

Unknown

Over: ARCHIBALD AVE

0.3 MI SOUTH OF I-10, San Bernardino, CA

Built 1999 ADT: 15,980

UP RR

Unknown

Over: ARCHIBALD AVENUE

100' N OF AIRPORT DR, San Bernardino, CA

Built 1999 ADT: 15,980

UNIVERSITY PARKWAY

Unknown

Over: BNSF RY & CAJON BLVD

0.01 MI S OF CAJON BLVD, San Bernardino, CA

Built 2008 ADT: 12,240

PEDESTRIAN ACCESS

Unknown

Over: FOOTHILL BLVD

~0.75 MILE W/O CITRUS AVE, San Bernardino, CA

Built 1931 ADT: 23,500

BNSF & METROLINK

Unknown

Over: MILIKEN AVENUE

0.21 MI S/O JERSEY BLVD, San Bernardino, CA

Built 2011 ADT: 17,000

BNSF & METROLINK

Unknown

Over: MILIKEN AVENUE

0.2 MI S/O JERSEY BLVD, San Bernardino, CA

Built 2011 ADT: 17,000

BNSF & METROLINK

Unknown

Over: HAVEN AVENUE

0.2 MI S/O JERSEY BLVD, San Bernardino, CA

Built 2010 ADT: 24,500

BNSF

Unknown

Over: RANCHERO ROAD

0.3 MI E/O 7TH AVENUE, San Bernardino, CA

Built 2010 ADT: 7,850

PALM AVENUE

Unknown

Over: BNSF RR, CAJON BLVD

0.3 MI SW OF I-215, San Bernardino, CA

Built 2015 ADT: 4,000

FOOTHILL BLVD POC

Unknown

Over: FOOTHILL BLVD

PACIFIC TRAIL AT FOOTHILL, San Bernardino, CA

Built 2013 ADT: 23,633

NORTH 8TH STREET

Unknown

Over: WEST LAUREL STREET

0.3 MILE W/O LA CADENA DR, San Bernardino, CA

Built 2017 ADT: 5,000

BNSF RR

Unknown

Over: WEST LAUREL STREET

0.25 MILE W/O LA CADENA, San Bernardino, CA

Built 2017 ADT: 5,000

MILLIKEN AVE

Unknown

Over: MISSION BLVD.

0.45 MI WEST OF I-15 N, San Bernardino, CA

Built 2016 ADT: 18,780

UNION PACIFIC RR

Unknown

Over: UNION PACIFIC RAILROAD

40 FT N/O E. AIRPORT DR., San Bernardino, CA

Built 2016 ADT: 30,000

UNION PACIFIC RR

Unknown

Over: UNION PACIFIC RAILROAD

320 FT N/O E. AIRPORT DR., San Bernardino, CA

Built 2013 ADT: 30,000

MONTE VISTA BLVD

Unknown

Over: UP RR, AMTRAK, METROLINK

0.2 MI S HOLT AVENUE, San Bernardino, CA

Built 2019 ADT: 5,020

UP RR

Unknown

Over: HIGHLAND AVE

0.5 MI E OF N. PEPPER AVE, San Bernardino, CA

Built 1967 ADT: 20,000

UNIVERSITY AVENUE

Unknown

Over: STATE ROUTE 163

11-SD-163-2.61-SD, San Diego, CA

Built 1947 ADT: 95,000

MAIN STREET

Unknown

Over: INTERSTATE 5

11-SD-005-5.40-SD, San Diego, CA

Built 1973 ADT: 154,000

SDIV RR

Unknown

Over: STATE ROUTE 94

11-SD-094-46.79, San Diego, CA

Built 1915 ADT: 1,950

SDIV RR

Unknown

Over: STATE ROUTE 94

11-SD-094-R59.16, San Diego, CA

Built 1917 ADT: 1,950

INTERSTATE 5

Unknown

Over: NCTD, BNSF, OCEANSIDE BL

11-SD-005-R52.30-OCN, San Diego, CA

Built 1953 ADT: 31,400

STATE ROUTE 163

Unknown

Over: SAN DIEGO RIVER

11-SD-163-3.95-SD, San Diego, CA

Built 1946 ADT: 17,300

E&W8-N163 CONNECT

Unknown

Over: CAMINO DE LA REINA,SD RI

11-SD-008-2.43-SD, San Diego, CA

Built 1970 ADT: 17,300

STATE ROUTE 78

Unknown

Over: MISSION RD,NCTD,BNSF RY

11-SD-078-14.99-SMCS, San Diego, CA

Built 1962 ADT: 18,300

STATE ROUTE 75

Unknown

Over: INTERSTATE 5

11-SD-075-8.98-SD, San Diego, CA

Built 1973 ADT: 154,000

FIRST AVE

Unknown

Over: INTERSTATE 5

11-SD-005-R16.59-SD, San Diego, CA

Built 1962 ADT: 156,000

N163-QUINCE ST OFF

Unknown

Over: STATE ROUTE 163

11-SD-163-1.62-SD, San Diego, CA

Built 1946 ADT: 118,000

RICHMOND ST-SR163

Unknown

Over: STATE ROUTE 163

11-SD-163-1.80-SD, San Diego, CA

Built 1947 ADT: 107,000

PEDESTRIAN WALKWAY

Unknown

Over: STATE ROUTE 163

11-SD-163-2.07-SD, San Diego, CA

Built 1947 ADT: 105,000

ROBINSON AVENUE

Unknown

Over: STATE ROUTE 163

11-SD-163-2.49-SD, San Diego, CA

Built 1942 ADT: 116,000

WASHINGTON STREET

Unknown

Over: STATE ROUTE 163

11-SD-163-2.75-SD, San Diego, CA

Built 1942 ADT: 130,000

WASHINGTON ST-S163

Unknown

Over: STATE ROUTE 163

11-SD-163-2.79-SD, San Diego, CA

Built 1947 ADT: 97,000

STATE ROUTE 163

Unknown

Over: 6TH AVE-N163 ON RAMP

11-SD-163-2.98-SD, San Diego, CA

Built 1947 ADT: 15,300

E8-N163 & S163-E8

Unknown

Over: STATE ROUTE 163

11-SD-008-2.41-SD, San Diego, CA

Built 1988 ADT: 167,000

SECOND AVE

Unknown

Over: ROUTE 5

11-SD-005-R16.53-SD, San Diego, CA

Built 1962 ADT: 199,000

N163-W8 CONNECTOR

Unknown

Over: RTE 163, S163-W8,N163-W8

11-SD-163-3.81-SD, San Diego, CA

Built 1991 ADT: 15,900

INTERSTATE 5

Unknown

Over: CANNON ROAD

11-SD-005-R47.98-CBD, San Diego, CA

Built 1971 ADT: 6,050

E STREET

Unknown

Over: INTERSTATE 5

11-SD-005-8.56-CHV, San Diego, CA

Built 1973 ADT: 163,000

INTERSTATE 5 SB

Unknown

Over: 24TH STREET

11-SD-005-R10.04-NATC, San Diego, CA

Built 1965 ADT: 3,790

INTERSTATE 5 NB

Unknown

Over: 24TH STREET

11-SD-005-R10.04-NATC, San Diego, CA

Built 1965 ADT: 3,790

INTERSTATE 5 SB

Unknown

Over: 18TH STREET

11-SD-005-R10.43-NATC, San Diego, CA

Built 1965 ADT: 13,200

INTERSTATE 5 NB

Unknown

Over: 18TH STREET

11-SD-005-R10.43-NATC, San Diego, CA

Built 1951 ADT: 13,200

Showing 5,001-5,050 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.