State profile · Below median Poor share

California bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in California.

25,848
Public bridges
45.6%
Good condition
5.9%
Poor condition

California holds 25,848 public highway bridges (#4 of 52 by inventory) with a 5.91% Poor share (#28 of 52 by Poor share).

That is 5.9% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 25 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

25,848

Public highway bridges in California

Good Condition

45.6%

11,798 bridges rated 7-9

-4.4pp vs 50% benchmark

Poor Condition

5.9%

1,527 bridges whose lowest applicable component is rated 0-4

-1.6pp vs national avg 7.5%

California vs national bridge condition

California - Good condition share 45.6%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

California - Poor-condition share 19.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

California in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: California has 25,848 bridges and a 5.9% Poor-condition share in the 2024 NBI, rank #25 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: California has 25,848 bridges and a 5.9% Poor-condition share in the 2024 NBI, rank #25 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

California vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

25,848 4th of 54 higher than 50 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for California

The highlighted point is California: 25,848 bridges and 5.91% in Poor condition, rank #25 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below California on that same Poor-share ordering:

  • Arkansas: 12,974 bridges · 5.43% Poor
  • Washington: 8,474 bridges · 5.45% Poor
  • California: 25,848 bridges · 5.91% Poor
  • New Jersey: 6,827 bridges · 6.01% Poor
  • Mississippi: 16,739 bridges · 6.03% Poor

The full national sortable table lives on the rankings page.

Material families in California

Exclusive FHWA material families across all 25,848 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains California’s inventory

State agency holds 48.8% of the 25,848 public highway bridges filed under California in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When California’s bridges were built

Pre-1950 construction accounts for 15.5% of the 25,848 bridges with a recorded original year in California. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

California45.6%48.4%GoodFairPoor
Bridge inventory deck-condition mix - California (FHWA NBI)

Counties (58)

Alameda 658 Alpine 32 Amador 61 Butte 437 Calaveras 105 Colusa 211 Contra Costa 618 Del Norte 96 El Dorado 192 Fresno 916 Glenn 242 Humboldt 396 Imperial 444 Inyo 66 Kern 668 Kings 168 Lake 129 Lassen 108 Los Angeles 3547 Madera 247 Marin 207 Mariposa 109 Mendocino 357 Merced 528 Modoc 87 Mono 49 Monterey 377 Napa 158 Nevada 135 Orange 1164 Placer 337 Plumas 165 Riverside 1117 Sacramento 740 San Benito 76 San Bernardino 1422 San Diego 1632 San Francisco 143 San Joaquin 644 San Luis Obispo 401 San Mateo 361 Santa Barbara 418 Santa Clara 964 Santa Cruz 192 Shasta 492 Sierra 65 Siskiyou 421 Solano 373 Sonoma 609 Stanislaus 386 Sutter 121 Tehama 450 Trinity 194 Tulare 589 Tuolumne 125 Ventura 501 Yolo 271 Yuba 127

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.

AR

Arkansas

5.43% top marginal rate
Structure
Progressive
Burden @ $100K
$12,974

WA

Washington

5.45% top marginal rate
Structure
Progressive
Burden @ $100K
$8,474
Selected

CA

California

5.91% top marginal rate
Structure
Progressive
Burden @ $100K
$25,848

NJ

New Jersey

6.01% top marginal rate
Structure
Progressive
Burden @ $100K
$6,827

MS

Mississippi

6.03% top marginal rate
Structure
Progressive
Burden @ $100K
$16,739

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.

OLD COTTONWOOD CR

Poor

Over: COTTONWOOD CREEK

0.2 MI E/O COTTONWOOD CK, Siskiyou, CA

Built 1957 Load: 0.0 t ADT: 10

STATE ROUTE 211

Poor

Over: EEL RIVER

01-HUM-211-78.10, Humboldt, CA

Built 1911 Load: 0.0 t ADT: 5,300

CR 305 (MAPES RD)

Poor

Over: HARTSON SLOUGH

0.4 MI E/O RD 303, Lassen, CA

Built 1978 Load: 0.0 t ADT: 100

CR 111 (PITTVILLE)

Poor

Over: BEAVER CREEK

1.0 MI S OF CR 404, Lassen, CA

Built 1975 Load: 0.0 t ADT: 100

RD 424 (BASSETT)

Poor

Over: WILLOW CREEK

1.5 MI N OF RD A-2, Lassen, CA

Built 1960 Load: 0.0 t ADT: 120

CR417 (PUNKIN CTR)

Poor

Over: MUDDY SLOUGH NO 1

2.8 MI S OF CR A2, Lassen, CA

Built 1955 Load: 0.0 t ADT: 200

All Bridges in California

SILVER CRK VLY RD

Good

Over: SILVER CREEK

0.5 KM S FARNSWORTH DR, Santa Clara, CA

Built 1993 Load: 32.4 t ADT: 1,150

SCENIC MEADOWLAND

Good

Over: THOMPSON CREEK

NE/O SAN FELIPE RD, Santa Clara, CA

Built 1991 Load: 32.4 t ADT: 300

MEADOWLAND LANE

Good

Over: THOMPSON CREEK

NE/O SAN FELIPE RD, Santa Clara, CA

Built 1991 Load: 32.4 t ADT: 300

JACKSON AVE

Good

Over: PENITENCIA CREEK

300 FT N MOSSDALE WY, Santa Clara, CA

Built 1992 Load: 32.4 t ADT: 2,000

COSMO LANE

Good

Over: W LITTLE LLAGAS CREEK

200 M W/O MONTEREY RD, Santa Clara, CA

Built 1991 Load: 32.4 t ADT: 1,100

EDES CT

Good

Over: W LITTLE LLAGAS CREEK

200 M W/O MONTEREY RD, Santa Clara, CA

Built 1991 Load: 32.4 t ADT: 900

TRACY COURT

Good

Over: ARASTRADERO CREEK

WEST OF PAGE MILL ROAD, Santa Clara, CA

Built 2002 Load: 32.4 t ADT: 100

HEDDING ST

Good

Over: GUADALUPE RIVER & TRAIL

NEAR CIVIC CENTER, Santa Clara, CA

Built 2002 Load: 32.4 t ADT: 15,600

HEDDING ST

Good

Over: GUADALUPE RIVER

NEAR CIVIC CENTER, Santa Clara, CA

Built 2002 Load: 32.4 t ADT: 15,600

FREMONT AVE

Good

Over: PERMANENTE CREEK

JUST WEST OF MIRAMONTE, Santa Clara, CA

Built 2016 Load: 32.4 t ADT: 14,369

ROBERTS ROAD

Good

Over: LOS GATOS CREEK

0.1 MI S BLOSSOM HILL RD, Santa Clara, CA

Built 2010 Load: 32.4 t ADT: 1,500

DIERICX DRIVE

Good

Over: CROSS CHANNEL

WASATCH DR & LUBICH DR, Santa Clara, CA

Built 2010 Load: 32.4 t ADT: 600

CAMINO ARROYO ST

Good

Over: WEST BRANCH LLAGAS CREEK

500 FT SOUTH OF GILMAN RD, Santa Clara, CA

Built 2009 Load: 32.4 t ADT: 25,100

ALVAREZ COURT

Good

Over: PENETENCIA CREEK

JWO S ABEL STREET, Santa Clara, CA

Built 2006 Load: 32.4 t ADT: 890

MONTEREY ROAD

Good

Over: W. LITTLE LLAGAS CREEK

JEO WATSONVILLE ROAD, Santa Clara, CA

Built 1965 Load: 32.4 t ADT: 22,000

DEER CREEK LANE

Good

Over: DEER CREEK

JUST EAST OF PURISSIMA RD, Santa Clara, CA

Built 2013 Load: 32.4 t ADT: 100

SAMUEL LANE

Good

Over: DEER CREEK

JUST EAST OF PURISSIMA RD, Santa Clara, CA

Built 1996 Load: 32.4 t ADT: 100

BUENA VISTA AVE

Good

Over: LLAGAS CREEK

0.5 MI W NEW AVE, Santa Clara, CA

Built 1989 Load: 32.4 t ADT: 2,540

CHARLESTON RD

Good

Over: PERMANENTE CREEK

BTWN SH 101 & STIERLIN RD, Santa Clara, CA

Built 1980 Load: 32.4 t ADT: 13,600

DUNNE LANE

Good

Over: PACHECO CREEK

1.5 MI S OF SH 152, Santa Clara, CA

Built 1986 Load: 32.4 t ADT: 490

SILVER CRK VLY RD

Good

Over: COYOTE CREEK

0.5 MI E OF SH 101, Santa Clara, CA

Built 1992 Load: 32.4 t ADT: 19,000

GILMAN ROAD

Good

Over: LLAGAS CREEK

HOLSCLAW ROAD, Santa Clara, CA

Built 1987 Load: 32.4 t ADT: 1,570

SUNSET AVE

Good

Over: SILVER CREEK

BTWN ALUMROCK & SAN ANTNO, Santa Clara, CA

Built 1979 Load: 32.4 t ADT: 2,120

UVAS ROAD

Good

Over: UVAS CREEK

0.7MI W OF WATSONVILLE RD, Santa Clara, CA

Built 2008 Load: 32.4 t ADT: 1,040

STEVENS CAYON ROAD

Good

Over: STEVENS CREEK

2.5 MI SW/O MT EDEN ROAD, Santa Clara, CA

Built 2016 Load: 32.4 t ADT: 224

STEVENS CAYON ROAD

Good

Over: STEVENS CREEK

2.7 MI SW/O MT EDEN ROAD, Santa Clara, CA

Built 2016 Load: 32.4 t ADT: 224

STEVENS CYN RD

Good

Over: STEVENS CREEK

2.9MI S/O MT EDEN RD, Santa Clara, CA

Built 2011 Load: 32.4 t ADT: 140

STEVENS CYN RD

Good

Over: STEVENS CREEK

3.2MI S/O MT EDEN RD, Santa Clara, CA

Built 2011 Load: 32.4 t ADT: 140

SAN ANTONIO VLY RD

Good

Over: ISABEL CREEK

8.3 MI EAST OF KINCAID RD, Santa Clara, CA

Built 2018 Load: 32.4 t ADT: 50

BASSETT ST

Good

Over: VTA LRT

AT FIRST ST, Santa Clara, CA

Built 1988 Load: 32.4 t ADT: 1,000

BAILEY AVE

Good

Over: COYOTE CREEK

JUST WEST OF US HWY 101, Santa Clara, CA

Built 2004 Load: 32.4 t ADT: 6,200

BAILEY AVENUE

Good

Over: MONTEREY RD UPRR AMTRK

5 MI NE/O SANTA TERESA BL, Santa Clara, CA

Built 2006 Load: 32.4 t ADT: 6,200

SILVER CRK VLY PL

Good

Over: COYOTE CREEK

ABUTS INTO S3 OF 37C0532, Santa Clara, CA

Built 2005 Load: 32.4 t ADT: 100

WOOSTER AVENUE

Good

Over: SILVER CREEK

0.2 MI N/O JULIAN ST, Santa Clara, CA

Built 2003 Load: 32.4 t ADT: 1,300

WILLOW GLEN WAY

Good

Over: GUADALUPE RIVER

NEAR CREEK DR, Santa Clara, CA

Built 2006 Load: 32.4 t ADT: 7,400

AIRPORT PARKWAY

Good

Over: GUADALUPE RIVER

0.4 MI S OF US 101, Santa Clara, CA

Built 1988 Load: 32.4 t ADT: 34,700

MONTGMRY & PARK AV

Good

Over: LOS GATOS CREEK

BET PARK & SAN CARLOS, Santa Clara, CA

Built 1965 Load: 32.4 t ADT: 10,550

ALUM ROCK AVE

Good

Over: SILVER CREEK

10 FT SW OF CHECKERS DR, Santa Clara, CA

Built 2006 Load: 32.4 t ADT: 28,500

CHRISTOPHER LANE

Good

Over: MATADERO CREEK

NEAR OLD PAGE MILL ROAD, Santa Clara, CA

Built 1975 Load: 32.4 t ADT: 250

JACKSON AVE

Good

Over: SILVER CREEK

NEAR I-680, Santa Clara, CA

Built 2014 Load: 32.4 t ADT: 49,500

Old Alviso Milp Rd

Good

Over: Coyote Creek

0.3 MI E I-880, Santa Clara, CA

Built 1997 Load: 32.4 t ADT: 350

EDMUNDSON AVE

Good

Over: LLAGAS CREEK

OAK GLEN AVE, Santa Clara, CA

Built 1998 Load: 32.4 t ADT: 2,410

HERITAGE WAY

Good

Over: UVAS CREEK

.1 MI SW/O WATSONVILLE RD, Santa Clara, CA

Built 2007 Load: 32.4 t ADT: 100

ADOBE LODGE ROAD

Good

Over: ADOBE CREEK

SOUTH OF MOODY ROAD, Santa Clara, CA

Built 1990 Load: 32.4 t ADT: 100

FRANCEMONT DRIVE

Good

Over: ADOBE CREEK

SOUTH OF MOODY ROAD, Santa Clara, CA

Built 1989 Load: 32.4 t ADT: 800

TURTURICI WAY

Good

Over: MISERY CREEK

NE OF SAN FELIPE RD, Santa Clara, CA

Built 2014 Load: 32.4 t ADT: 250

OLD MTNVIEW-ALVISO

Good

Over: CALABAZAS CREEK TRAIL

S OF ROUTE 237 PM 5.28, Santa Clara, CA

Built 2018 Load: 32.4 t ADT: 8,000

COHANSEY AVENUE

Good

Over: WEST LLAGAS CREEK

0.25 MI W OF MONTEREY HWY, Santa Clara, CA

Built 2019 Load: 32.4 t ADT: 4,521

W 3RD STREET

Good

Over: LITTLE LLAGAS CREEK

NE OF DEL MONTE AVE, Santa Clara, CA

Built 2017 Load: 32.4 t ADT: 1,000

STATE ROUTE 120

Good

Over: WILDCAT CREEK

10-STA-120-R15.04, Stanislaus, CA

Built 1948 Load: 32.4 t ADT: 12,000

Showing 17,801-17,850 of 25,848 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.

What to do with this

Use California's inventory picture to drill to a county or a specific span.

  • Browse counties in California and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. California Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.