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

OLD COTTONWOOD CR

Poor

Over: COTTONWOOD CREEK

0.2 MI E/O COTTONWOOD CK, Siskiyou, CA

Built 1957 ADT: 10

WEST BEAVER ROAD

Poor

Over: WEST FORK BEAVER CREEK

BEAVER, Siskiyou, CA

Built 1983 ADT: 50

TRAPPER ROAD

Poor

Over: TRAPPER CREEK

BEAVER, Siskiyou, CA

Built 1978 ADT: 50

METHODIST CK ROAD

Poor

Over: S. FK. SALMON RIVER

FORKS, Siskiyou, CA

Built 1963 ADT: 20

CHINA MT. ROAD

Poor

Over: HOUSTON CREEK

CALLAHAN, Siskiyou, CA

Built 1974 ADT: 50

BOULDER ROAD

Poor

Over: EAST BOULDER CREEK

CALLAHAN, Siskiyou, CA

Built 1966 ADT: 50

TOM WALKER ROAD

Poor

Over: TOMPKINS CREEK

SCOTT BAR, Siskiyou, CA

Built 1988 ADT: 50

NO DATA ENTERED

Poor

Over: WEST BOULDER CREEK

CALLAHAN, Siskiyou, CA

Built 2004 ADT: 50

MAIN PRAIRIE RD

Poor

Over: ULATIS CREEK

0.3 MI E OF RTE 113, Solano, CA

Built 1962 ADT: 255

SWEETWTR SPRNGS RD

Poor

Over: PORTER CREEK

3.5 MI W OF WESTSIDE RD, Sonoma, CA

Built 1968 ADT: 140

FLOURNOY AVE

Poor

Over: BURCH CREEK

0.2 MI E KIRKWOOD RD, Tehama, CA

Built 1937 ADT: 123

NO DATA ENTERED

Poor

Over: MILL CREEK

NO DATA ENTERED, Tehama, CA

Built 1955 ADT: 20

MAY

Poor

Over: RATTLESNAKE CREEK

FOREST GLEN STA., Trinity, CA

Built 1959 ADT: 50

AVENUE 404

Poor

Over: COTTONWOOD CREEK

0.1 MI WEST OF SR 245, Tulare, CA

Built 1936 ADT: 25

MOUNTAIN RD 109

Poor

Over: WHITE RIVER

8 MI SE FOUNTAIN SPRINGS, Tulare, CA

Built 1939 ADT: 180

M 112

Poor

Over: DEER CREEK

2.23 MI SE OF M120, Tulare, CA

Built 1956 ADT: 25

ROAD 16

Poor

Over: HOMELAND CANAL

3.0 MI N OF AVENUE 56, Tulare, CA

Built 1942 ADT: 175

WINDING ROAD

Poor

Over: UPPER HUNTER CREEK

NO DATA ENTERED, Tuolumne, CA

Built 1969 ADT: 50

WINDING ROAD

Poor

Over: STANISLAUS RIVER

NO DATA ENTERED, Tuolumne, CA

Built 1926 ADT: 50

WINDING ROAD

Poor

Over: BLUE CANYON CREEK

NO DATA ENTERED, Tuolumne, CA

Built 1968 ADT: 50

WINDING ROAD

Poor

Over: MILL CREEK

NO DATA ENTERED, Tuolumne, CA

Built 1969 ADT: 50

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

PICACHO RD

Poor

Over: YUMA MAIN CANAL

0.16 M E/O WINTERHAVEN RD, Imperial, CA

Built 1925 Load: 4.2 t ADT: 6,500

BRACE ROAD

Poor

Over: SECRET RAVINE

JUST EAST OF I-80, Placer, CA

Built 1939 Load: 4.2 t ADT: 2,595

ALDERCROFT HTS RD

Poor

Over: LOS GATOS CREEK

2.38 MI S LOS GATOS SC RD, Santa Clara, CA

Built 1956 Load: 4.2 t ADT: 30

BYRON HWY

Poor

Over: CALIFORNIA AQUEDUCT

5.6 MI SOUTH OF SR 4, Contra Costa, CA

Built 1964 Load: 4.5 t ADT: 8,387

HAMILTON ROAD

Poor

Over: WEST BRANCH MILL CREEK

2.1 MILES EAST OF US 101, Del Norte, CA

Built 1950 Load: 4.9 t ADT: 25

WEST BRANCH ROAD

Poor

Over: WEST BRANCH MILL CREEK

5.4 MI S OF HAMILTON ROAD, Del Norte, CA

Built 1950 Load: 4.9 t ADT: 10

CHILD'S HILL ROAD

Poor

Over: EAST FORK MILL CREEK

5.3 MILES EAST OF US 101, Del Norte, CA

Built 1950 Load: 4.9 t ADT: 10

MOSQUITO RD

Poor

Over: SOUTH FK AMERICAN RIVER

5.7 MI NORTH OF US 50, El Dorado, CA

Built 1939 Load: 5.2 t ADT: 1,055

TISDALE RD

Poor

Over: WESTSIDE CANAL

100' E CRANMORE RD, Sutter, CA

Built 1925 Load: 5.2 t ADT: 12

BREEDLOVE ROAD

Poor

Over: CANYON CREEK

1.0 MI N/O WENTWORTH S RD, El Dorado, CA

Built 1940 Load: 5.5 t ADT: 250

HOBDAY ROAD

Poor

Over: WEST BRANCH BADGER CREEK

330 FT E/O ALTA MESA RD, Sacramento, CA

Built 1960 Load: 5.5 t ADT: 1,010

ELLIS RD

Poor

Over: SIMMERLY SLOUGH

1.0 MI E OF SR 70, Yuba, CA

Built 1928 Load: 5.5 t ADT: 40

CROSS STREET

Poor

Over: DEL ROSA CHANNEL

0.1 MI E CONEJO ST, San Bernardino, CA

Built 1940 Load: 5.8 t ADT: 100

ROAD 67

Poor

Over: BRANCH HOWARD SLOUGH

1.9 MI E OF RD Z, Glenn, CA

Built 1920 Load: 6.2 t ADT: 93

CIRCLE TRAIL

Poor

Over: TOPANGA CYN CRK

25FT W/O TOPANGA CYN BLVD, Los Angeles, CA

Built 1936 Load: 6.2 t ADT: 204

S COW MTN -8 MILE

Poor

Over: Panther Creek

11.4 miles SE of Ukiah, Lake, CA

Built 2000 Load: 6.5 t ADT: 25

HILL ROAD

Poor

Over: MILL CREEK

2.0 MI E FAIRBANKS RD, Mendocino, CA

Built 1925 Load: 6.5 t ADT: 78

KILBURN ROAD

Poor

Over: ORESTIMBA CREEK

.45 MI S CROWS LANDING RD, Stanislaus, CA

Built 1910 Load: 6.5 t ADT: 122

BUNKER ROAD

Poor

Over: OUTSIDE CANAL

0.3 MI W OF SR 33, Merced, CA

Built 1930 Load: 6.8 t ADT: 93

STATE ROUTE 111

Poor

Over: FIR DITCH

08-RIV-111-9.54, Riverside, CA

Built 1951 Load: 7.1 t ADT: 5,500

18023: MELSONS COR

Poor

Over: Perry Creek

10 mi SE of Placerville, El Dorado, CA

Built 1955 Load: 7.5 t ADT: 5

CR 305 (MAPES RD)

Poor

Over: WHITEHEAD SLOUGH

0.6 MI S/O RD 306, Lassen, CA

Built 1978 Load: 7.5 t ADT: 162

CUNNINGHAM LANE

Poor

Over: WEST WALKER RIVER

0.3 MI E RT 395, PM 112.5, Mono, CA

Built 1951 Load: 7.5 t ADT: 82

Showing 25,851-25,900 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.