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

INTERSTATE 680

Unknown

Over: PINE VALLEY ROAD

04-CC-680-R1.09-SRMN, Contra Costa, CA

Built 1966 ADT: 2,950

INTERSTATE 680

Unknown

Over: MONTEVIDEO DRIVE

04-CC-680-R1.89-SRMN, Contra Costa, CA

Built 1966 ADT: 5,920

GREENBROOK DRIVE

Unknown

Over: INTERSTATE 680

04-CC-680-R5.33-DNVL, Contra Costa, CA

Built 1966 ADT: 176,400

BOLLINGER CYN RD

Unknown

Over: INTERSTATE 680

04-CC-680-R2.88-SRMN, Contra Costa, CA

Built 1966 ADT: 181,700

STATE ROUTE 24

Unknown

Over: FIRST STREET

04-CC-024-R6.51-LFYT, Contra Costa, CA

Built 1970 ADT: 1,200

STATE ROUTE 24

Unknown

Over: FIRST STREET

04-CC-024-R6.51-LFYT, Contra Costa, CA

Built 1970 ADT: 1,200

STATE ROUTE 24

Unknown

Over: FIRST STREET

04-CC-024-R6.51-LFYT, Contra Costa, CA

Built 1971 ADT: 1,200

CENTRAL AVENUE

Unknown

Over: INTERSTATE 580

04-CC-580-0.24-RCH, Contra Costa, CA

Built 1991 ADT: 84,500

STATE ROUTE 4 WB

Unknown

Over: SOLANO WAY

04-CC-004-R13.65, Contra Costa, CA

Built 1981 ADT: 5,500

STATE ROUTE 4 EB

Unknown

Over: SOLANO WAY

04-CC-004-R13.65, Contra Costa, CA

Built 1981 ADT: 5,500

STATE ROUTE 4 WB

Unknown

Over: PERALTA ROAD

04-CC-004-R13.96-CND, Contra Costa, CA

Built 1981 ADT: 4,500

STATE ROUTE 4 EB

Unknown

Over: PERALTA ROAD

04-CC-004-R13.96-CND, Contra Costa, CA

Built 1978 ADT: 4,500

STATE ROUTE 4 WB

Unknown

Over: W4-S242 CONNECTOR RAMP

04-CC-004-R14.64-CND, Contra Costa, CA

Built 1978 ADT: 100,000

STATE ROUTE 4 EB

Unknown

Over: W4-S242 CONNECTOR RAMP

04-CC-004-R14.62-CND, Contra Costa, CA

Built 1978 ADT: 100,000

E4-PORT CHICAGO

Unknown

Over: W4-S242 & N242-E4 CONNS

04-CC-004-R14.61-CND, Contra Costa, CA

Built 1978 ADT: 100,000

STATE ROUTE 4 WB

Unknown

Over: PORT CHICAGO HWY

04-CC-004-R15.42-CND, Contra Costa, CA

Built 1976 ADT: 15,792

STATE ROUTE 4 EB

Unknown

Over: PORT CHICAGO HWY

04-CC-004-R15.42-CND, Contra Costa, CA

Built 1976 ADT: 15,792

STATE ROUTE 4 WB

Unknown

Over: WILLOW PASS ROAD

04-CC-004-R16.83, Contra Costa, CA

Built 1975 ADT: 22,357

STATE ROUTE 4 EB

Unknown

Over: WILLOW PASS ROAD

04-CC-004-R16.83, Contra Costa, CA

Built 1976 ADT: 22,357

OLIVERA ROAD

Unknown

Over: STATE ROUTE 242

04-CC-242-R2.79-CND, Contra Costa, CA

Built 1978 ADT: 100,000

N242-W4 CONNECTOR

Unknown

Over: STATE ROUTES 4 & 242

04-CC-242-R3.24-CND, Contra Costa, CA

Built 1978 ADT: 80,000

PEDESTRIAN WALKWAY

Unknown

Over: SR 24 ON & OFF-RAMPS

04-CC-024-R2.40-ORIN, Contra Costa, CA

Built 1969 ADT: 161,300

BARTD AERIAL C007

Unknown

Over: INTERSTATE 680

04-CC-680-14.46-WLC, Contra Costa, CA

Built 1968 ADT: 235,000

BAYVIEW AVENUE OC

Unknown

Over: INTERSTATE 580

04-CC-580-1.21, Contra Costa, CA

Built 1987 ADT: 84,500

SOUTH 23RD ST

Unknown

Over: INTERSTATE 580

04-CC-580-R2.89-RCH, Contra Costa, CA

Built 1987 ADT: 87,000

MARINA WAY OC

Unknown

Over: INTERSTATE 580

04-CC-580-R3.35-RCH, Contra Costa, CA

Built 1989 ADT: 87,000

CUTTING BLVD

Unknown

Over: INTERSTATE 580

04-CC-580-R3.79-RCH, Contra Costa, CA

Built 1989 ADT: 69,000

INTERSTATE 580

Unknown

Over: BNSF RY, SOUTH SECOND ST

04-CC-580-R4.09-RCH, Contra Costa, CA

Built 1990 ADT: 3,000

INTERSTATE 580

Unknown

Over: CANAL BOULEVARD

04-CC-580-R4.64-RCH, Contra Costa, CA

Built 1991 ADT: 1,200

HILLTOP DRIVE WB

Unknown

Over: INTERSTATE 80

04-CC-080-5.99-RCH, Contra Costa, CA

Built 1977 ADT: 3,000

HILLTOP DRIVE EB

Unknown

Over: INTERSTATE 80

04-CC-080-5.99-RCH, Contra Costa, CA

Built 2009 ADT: 3,000

EAST PORTAL BLDG

Unknown

Over: STATE ROUTE 24

04-CC-024-R0.28, Contra Costa, CA

Built 1964 ADT: 155,000

BNSF RY

Unknown

Over: STATE ROUTE 4

04-CC-004-R1.00, Contra Costa, CA

Built 1985 ADT: 42,500

BNSF RY

Unknown

Over: INTERSTATE 580

04-CC-580-R2.00-RCH, Contra Costa, CA

Built 1988 ADT: 87,000

BNSF RY

Unknown

Over: INTERSTATE 580

04-CC-580-R2.06-RCH, Contra Costa, CA

Built 1988 ADT: 87,000

ERLANDSON ST

Unknown

Over: INTERSTATE ROUTE 580

04-CC-580-R2.09-RCH, Contra Costa, CA

Built 1988 ADT: 87,000

APPIAN WAY NB

Unknown

Over: INTERSTATE 80

04-CC-080-7.62-PIN, Contra Costa, CA

Built 1985 ADT: 190,000

STATE ROUTE 242

Unknown

Over: CLAYTON ROAD-S242 ON RMP

04-CC-242-R0.78-CND, Contra Costa, CA

Built 1986 ADT: 1,000

I 580 EB

Unknown

Over: CASTRO STREET

04-CC-580-R5.11-RCH, Contra Costa, CA

Built 1988 ADT: 3,000

I 580 WB

Unknown

Over: CASTRO STREET

04-CC-580-R5.11-RCH, Contra Costa, CA

Built 1990 ADT: 3,000

CANAL&CASTRO-W580

Unknown

Over: CASTRO STREET

04-CC-580-R5.11-RCH, Contra Costa, CA

Built 1990 ADT: 3,000

HARBOUR WAY

Unknown

Over: INTERSTATE 580

04-CC-580-R3.60-RCH, Contra Costa, CA

Built 1989 ADT: 87,000

RICHMOND PARKWAY

Unknown

Over: INTERSTATE 80

04-CC-080-6.70-PIN, Contra Costa, CA

Built 1997 ADT: 179,000

S680-OLYMPIC OFFRP

Unknown

Over: E24-S680 CONNECTOR RAMP

04-CC-680-14.07-WLC, Contra Costa, CA

Built 1999 ADT: 25,000

STATE ROUTE 4 WB

Unknown

Over: WILLOW PASS ROAD

04-CC-004-R18.76, Contra Costa, CA

Built 1995 ADT: 27,237

STATE ROUTE 4 EB

Unknown

Over: WILLOW PASS ROAD

04-CC-004-R18.76, Contra Costa, CA

Built 1995 ADT: 27,237

OAKLAND BOULEVARD

Unknown

Over: N680&E24-YGNACIO OFF RMP

04-CC-680-14.56-WLC, Contra Costa, CA

Built 1997 ADT: 5,300

FOSTORIA PARKWAY

Unknown

Over: INTERSTATE 680

04-CC-680-R4.38-SRMN, Contra Costa, CA

Built 1992 ADT: 176,400

PEDESTRIAN ACCESS

Unknown

Over: STATE ROUTE 4 EB

04-CC-004-R19.96, Contra Costa, CA

Built 1997 ADT: 127,000

BART ACCESS ROAD

Unknown

Over: E4-BAILEY RD OFF RAMP

04-CC-004-R19.98, Contra Costa, CA

Built 1997 ADT: 5,500

Showing 601-650 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.