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

STATE ROUTE 99 NB

Unknown

Over: LASSEN AVE

03-BUT-099-R35.31, Butte, CA

Built 1966 ADT: 6,000

EATON AVE

Unknown

Over: STATE ROUTE 99

03-BUT-099-R36.31, Butte, CA

Built 1966 ADT: 19,000

STATE ROUTE 99 SB

Unknown

Over: EAST FIFTH AVE

03-BUT-099-R33.57-CHC, Butte, CA

Built 1966 ADT: 5,736

STATE ROUTE 99 NB

Unknown

Over: EAST FIFTH AVE

03-BUT-099-R33.57-CHC, Butte, CA

Built 1966 ADT: 5,736

GARDEN DR

Unknown

Over: STATE ROUTE 70

03-BUT-070-16.63, Butte, CA

Built 1963 ADT: 20,100

SKYWAY

Unknown

Over: STATE ROUTE 99

03-BUT-099-R30.60-CHC, Butte, CA

Built 1965 ADT: 32,500

COHASSET HWY

Unknown

Over: STATE ROUTE 99

03-BUT-099-R34.25-CHC, Butte, CA

Built 1966 ADT: 49,500

EAST 20TH ST WB

Unknown

Over: STATE ROUTE 99

03-BUT-099-R31.50-CHC, Butte, CA

Built 1993 ADT: 49,500

EAST 20TH ST EB

Unknown

Over: STATE ROUTE 99

03-BUT-099-R31.50-CHC, Butte, CA

Built 1965 ADT: 49,500

UP RR & BNSF RY

Unknown

Over: STATE ROUTE 162

03-BUT-162-16.90-OVL, Butte, CA

Built 1986 ADT: 30,000

PENTZ ROAD

Unknown

Over: STATE ROUTE 99

03-BUT-099-23.86, Butte, CA

Built 1975 ADT: 24,800

NB 149 TO SB 99 RP

Unknown

Over: SR 99 AND SR 149

03-BUT-149-R4.80, Butte, CA

Built 2008 ADT: 13,750

STATE ROUTE 99 NB

Unknown

Over: STATE ROUTE 149

03-BUT-099-R21.73R, Butte, CA

Built 2008 ADT: 13,750

S149-E70 CONNECTOR

Unknown

Over: SR 149 & SR 70 WB

03-BUT-149-R0.01, Butte, CA

Built 2008 ADT: 7,500

STATE ROUTE 70 WB

Unknown

Over: STATE ROUTE 149

03-BUT-070-R20.53L, Butte, CA

Built 2008 ADT: 13,750

PRIVATE ROAD

Unknown

Over: STATE ROUTE 149

03-BUT-149-R1.05, Butte, CA

Built 2008 ADT: 13,750

CANYON HIGHLAND DR

Unknown

Over: OROVILLE DAM BLVD

9.25 MI E FROM SH 99, Butte, CA

Built 1930 ADT: 4,348

UP RR & BNSF RY

Unknown

Over: MYERS STREET

N BALDWIN AVE, Butte, CA

Built 1924 ADT: 4,791

UP RR & BNSF RY

Unknown

Over: LINCOLN STREET

JUST N MITCHELL AVE, Butte, CA

Built 1924 ADT: 2,553

UP RR & BNSF RY

Unknown

Over: HUNTOON STREET

HUNTOON STREET, Butte, CA

Built 1924 ADT: 3,331

CEMENT PLANT ROAD

Unknown

Over: STATE ROUTE 49

10-CAL-049-16.46, Calaveras, CA

Built 1935 ADT: 6,950

STATE ROUTE 20

Unknown

Over: 7TH ST, CNFR, E SIDE CNL

03-COL-020-R21.85, Colusa, CA

Built 1971 ADT: 500

HALL ST

Unknown

Over: INTERSTATE ROUTE 5

03-COL-005-7.15, Colusa, CA

Built 1957 ADT: 28,500

LENAHAN ROAD

Unknown

Over: INTERSTATE 5

03-COL-005-R30.85, Colusa, CA

Built 1970 ADT: 25,000

DELEVAN ROAD

Unknown

Over: INTERSTATE 5

03-COL-005-R31.84, Colusa, CA

Built 1970 ADT: 25,000

HARRINGTON ROAD

Unknown

Over: INTERSTATE 5

03-COL-005-R2.30, Colusa, CA

Built 1967 ADT: 30,000

GREENBAY ROAD

Unknown

Over: INTERSTATE 5

03-COL-005-R3.15, Colusa, CA

Built 1967 ADT: 30,000

HAHN ROAD

Unknown

Over: INTERSTATE 5

03-COL-005-R10.31, Colusa, CA

Built 1967 ADT: 28,500

MEYERS ROAD

Unknown

Over: INTERSTATE ROUTE 5

03-COL-005-R13.75, Colusa, CA

Built 1967 ADT: 28,500

INTERSTATE 5 SB

Unknown

Over: CNFR & OLD HWY 99W

03-COL-005-R29.22, Colusa, CA

Built 1971 ADT: 5,000

INTERSTATE 5 NB

Unknown

Over: CNFR & OLD HWY 99W

03-COL-005-R29.25, Colusa, CA

Built 1971 ADT: 5,000

E ST

Unknown

Over: INTERSTATE ROUTE 5

03-COL-005-R17.98, Colusa, CA

Built 1971 ADT: 27,500

HUSTED ROAD

Unknown

Over: INTERSTATE ROUTE 5

03-COL-005-R15.91, Colusa, CA

Built 1971 ADT: 28,500

MAXWELL-COLUSA RD

Unknown

Over: INTERSTATE ROUTE 5

03-COL-005-R26.73, Colusa, CA

Built 1971 ADT: 25,000

FRESHWATER ROAD

Unknown

Over: INTERSTATE 5

03-COL-005-R19.31, Colusa, CA

Built 1971 ADT: 25,000

LURLINE AVE

Unknown

Over: INTERSTATE ROUTE 5

03-COL-005-R22.74, Colusa, CA

Built 1971 ADT: 25,000

FAIRVIEW ROAD

Unknown

Over: INTERSTATE ROUTE 5

03-COL-005-R24.72, Colusa, CA

Built 1971 ADT: 25,000

STATE ROUTE 20

Unknown

Over: INTERSTATE 5

03-COL-020-R22.09, Colusa, CA

Built 1971 ADT: 27,500

SR 160 SB

Unknown

Over: WILBUR AVENUE

04-CC-160-1.50, Contra Costa, CA

Built 1971 ADT: 23,000

INTERSTATE 80

Unknown

Over: POTRERO AVE & S80 ON RMP

04-CC-080-1.67-ECR, Contra Costa, CA

Built 1956 ADT: 9,620

BNSF RY

Unknown

Over: STATE ROUTE 4 EB

04-CC-004-R3.66R, Contra Costa, CA

Built 1925 ADT: 43,500

S242-S680 CONNECTR

Unknown

Over: INTERSTATE 680

04-CC-242-R0.08-CND, Contra Costa, CA

Built 1963 ADT: 229,000

SR 160 SB

Unknown

Over: E 18TH STREET

04-CC-160-1.00, Contra Costa, CA

Built 1971 ADT: 36,700

SR 160 NB

Unknown

Over: E 18TH STREET

04-CC-160-1.00, Contra Costa, CA

Built 1971 ADT: 36,700

E24-PLEASANT HILL

Unknown

Over: MOUNT DIABLO BOULEVARD

04-CC-024-R7.60-LFYT, Contra Costa, CA

Built 1971 ADT: 16,700

I 580 EB OFF RAMP

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.82-RCH, Contra Costa, CA

Built 1991 ADT: 3,000

EB ONRAMP

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.82-RCH, Contra Costa, CA

Built 1980 ADT: 3,000

I 580 EB

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.82-RCH, Contra Costa, CA

Built 1980 ADT: 3,000

I 580 WB

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.81-RCH, Contra Costa, CA

Built 1991 ADT: 3,000

CANAL BL-W580 ONRP

Unknown

Over: BNSF RY & GARRARD BLVD

04-CC-580-R4.81-RCH, Contra Costa, CA

Built 1980 ADT: 3,000

Showing 451-500 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.