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

INTERSTATE 5

Good

Over: CREEKSIDE ROAD

02-SHA-005-59.97, Shasta, CA

Built 1962 Load: 31.1 t ADT: 17,100

INTERSTATE 5

Good

Over: CONANT ROAD

02-SHA-005-60.51, Shasta, CA

Built 1962 Load: 31.1 t ADT: 17,100

INTERSTATE 80 WB

Good

Over: OLD DAVIS ROAD

04-SOL-080-R43.50, Solano, CA

Built 1974 Load: 31.1 t ADT: 62,500

INTERSTATE 80 EB

Good

Over: OLD DAVIS ROAD

04-SOL-080-R43.50, Solano, CA

Built 1974 Load: 31.1 t ADT: 61,500

ROCKVILLE ROAD

Good

Over: SUISUN CREEK

0.5 MI E OF SUISUN VAL RD, Solano, CA

Built 1966 Load: 31.1 t ADT: 9,822

N DUTTON AVE

Good

Over: SANTA ROSA CREEK

DUTTON AVE, Sonoma, CA

Built 1973 Load: 31.1 t ADT: 22,000

INTERSTATE 5 SB

Good

Over: WILLOW CREEK

02-TEH-005-R19.28, Tehama, CA

Built 1965 Load: 31.1 t ADT: 14,000

INTERSTATE 5 NB

Good

Over: WILLOW CREEK

02-TEH-005-R19.28, Tehama, CA

Built 1965 Load: 31.1 t ADT: 14,000

HYAMPOM ROAD

Good

Over: HAYFORK CREEK

23.2 MI WEST OF SR 3, Trinity, CA

Built 1978 Load: 31.1 t ADT: 330

AVE 384

Good

Over: TRAVER CANAL

AT ROAD 48, Tulare, CA

Built 1961 Load: 31.1 t ADT: 1,230

ROAD M99

Good

Over: BRUSH CREEK

4.81 MI SE OF MSO, Tulare, CA

Built 1940 Load: 31.1 t ADT: 850

AVENUE 304

Good

Over: DEEP CREEK

0.25 MI E OF RD 184, Tulare, CA

Built 1949 Load: 31.1 t ADT: 220

STATE ROUTE 33

Good

Over: SHELL ROAD

07-VEN-033-2.65, Ventura, CA

Built 1956 Load: 31.1 t ADT: 20,000

STATE ROUTE 33

Good

Over: HILLSIDE

07-VEN-033-55.61, Ventura, CA

Built 1984 Load: 31.1 t ADT: 290

7 MILE ROAD

Good

Over: EDGAR SLOUGH

JUST S NELSON RD, Butte, CA

Built 1965 Load: 31.4 t ADT: 184

EUCLID AVENUE

Good

Over: CONTRA COSTA CANAL

AT 6TH ST, E OF SR 242, Contra Costa, CA

Built 2003 Load: 31.4 t ADT: 1,000

ROAD V

Good

Over: CENTRAL IRRIGATION CANAL

0.6 MI N RD 34, Glenn, CA

Built 1950 Load: 31.4 t ADT: 303

U.S. HIGHWAY 101

Good

Over: REDWOOD CREEK OVERFLOW

01-HUM-101-120.02, Humboldt, CA

Built 1950 Load: 31.4 t ADT: 3,750

STATE ROUTE 58

Good

Over: KEENE ROAD

09-KER-058-82.06, Kern, CA

Built 1962 Load: 31.4 t ADT: 42,400

COFFEE ROAD SB

Good

Over: CROSS VALLEY CANAL

06-KER-058-R48.52-BKD, Kern, CA

Built 1992 Load: 31.4 t ADT: 40,900

STATE ROUTE 41 NB

Good

Over: SOUTH FORK KINGS RIVER

06-KIN-041-R45.54, Kings, CA

Built 1956 Load: 31.4 t ADT: 8,800

W134-E2 CONNECTOR

Good

Over: HOLLY DR

07-LA-134-R9.04-GNDL, Los Angeles, CA

Built 1978 Load: 31.4 t ADT: 3,850

VINCENT AVE

Good

Over: WALNUT CRK

0.3MI S/O I-10 FWY, Los Angeles, CA

Built 1960 Load: 31.4 t ADT: 30,995

WISTARIA AVE

Good

Over: ARCADIA WASH

0.1MI E/O EL MONTE AVE, Los Angeles, CA

Built 1955 Load: 31.4 t ADT: 816

WEBER ST

Good

Over: SAN JOSE CRK

0.5MI N/O HOLT AVE, Los Angeles, CA

Built 1964 Load: 31.4 t ADT: 1,530

HEARST-WILLITS RD

Good

Over: SALT CREEK

4.4 MI NE JCT TOMKI RD, Mendocino, CA

Built 1970 Load: 31.4 t ADT: 108

STATE ROUTE 140

Good

Over: LOS BANOS CREEK

10-MER-140-10.31, Merced, CA

Built 1947 Load: 31.4 t ADT: 3,650

HUSMAN RD

Good

Over: CCID MAIN CANAL

1.0 MI E HWY 33, Merced, CA

Built 1960 Load: 31.4 t ADT: 250

US HIGHWAY 101 SB

Good

Over: SAN LORENZO CREEK

05-MON-101-R40.42, Monterey, CA

Built 1968 Load: 31.4 t ADT: 7,950

INTERSTATE 80

Good

Over: MINERS RAVINE

03-PLA-080-2.88-RSV, Placer, CA

Built 1954 Load: 31.4 t ADT: 155,000

INTERSTATE 15 NB

Good

Over: SANTA GERTRUDIS CREEK

08-RIV-015-6.73-TMCA, Riverside, CA

Built 1968 Load: 31.4 t ADT: 182,000

INTERSTATE 10 WB

Good

Over: EAST COTTON GULCH

08-RIV-010-R80.65, Riverside, CA

Built 1965 Load: 31.4 t ADT: 11,250

INTERSTATE 10 EB

Good

Over: ACARI DITCH

08-RIV-010-R122.15, Riverside, CA

Built 1966 Load: 31.4 t ADT: 10,700

INTERSTATE 10

Good

Over: ARCO DITCH

08-RIV-010-R126.97, Riverside, CA

Built 1966 Load: 31.4 t ADT: 10,700

STATE ROUTE 79

Good

Over: SAN JACINTO RIVER

08-RIV-079-M32.76, Riverside, CA

Built 1994 Load: 31.4 t ADT: 27,030

STATE ROUTE 99 NB

Good

Over: NORTH CHANNEL DRY CREEK

03-SAC-099-0.13-GAL, Sacramento, CA

Built 1955 Load: 31.4 t ADT: 29,500

STATE ROUTE 99

Good

Over: ELDER CREEK

03-SAC-099-18.05-SAC, Sacramento, CA

Built 1959 Load: 31.4 t ADT: 161,000

FOLSOM BOULEVARD

Good

Over: WILLOW CREEK

AT WOODMERE DR, Sacramento, CA

Built 1967 Load: 31.4 t ADT: 30,000

INTERSTATE 15 NB

Good

Over: WHEATON SPRINGS WASH

08-SBD-015-174.71, San Bernardino, CA

Built 1963 Load: 31.4 t ADT: 18,500

HIGHLAND AVE

Good

Over: EAST TWIN CREEK CHANNEL

0.5 MI E WATERMAN AVE, San Bernardino, CA

Built 1961 Load: 31.4 t ADT: 23,460

STATE ROUTE 76

Good

Over: GOMEZ CREEK

11-SD-076-22.23, San Diego, CA

Built 1952 Load: 31.4 t ADT: 11,800

US HIGHWAY 101 SB

Good

Over: UP RR, AMTRAK, SPRING ST

05-SLO-101-58.76-PSRS, San Luis Obispo, CA

Built 1958 Load: 31.4 t ADT: 11,500

US HIGHWAY 101 NB

Good

Over: UP RR, AMTRAK, SPRING ST

05-SLO-101-58.76-PSRS, San Luis Obispo, CA

Built 1958 Load: 31.4 t ADT: 11,500

SHIRRELL WAY

Good

Over: LAS VEGAS CREEK

0.2 MI W FAIRVIEW AVE, Santa Barbara, CA

Built 1985 Load: 31.4 t ADT: 4,419

PRUNERIDGE AVE

Good

Over: SARATOGA CREEK

E OF LAWRENCE EXPWY, Santa Clara, CA

Built 1962 Load: 31.4 t ADT: 11,560

STATE ROUTE 17 NB

Good

Over: LA MADRONA DRIVE

05-SCR-017-1.38, Santa Cruz, CA

Built 1960 Load: 31.4 t ADT: 32,500

INTERSTATE 5

Good

Over: NORTH STREET

02-SHA-005-R5.64-AND, Shasta, CA

Built 1966 Load: 31.4 t ADT: 39,000

INTERSTATE 5 NB

Good

Over: ANTLER ROAD

02-SHA-005-R41.05, Shasta, CA

Built 1972 Load: 31.4 t ADT: 8,600

PLATINA RD

Good

Over: DUNCAN CREEK

PM 11.35 MI E SR 36, Shasta, CA

Built 1975 Load: 31.4 t ADT: 233

WILLOW CREEK RD

Good

Over: WILLOW CREEK

0.3 MI W OF SYLVA RD, Siskiyou, CA

Built 1968 Load: 31.4 t ADT: 41

Showing 19,801-19,850 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.