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

EL PORTAL ROAD

Fair

Over: WILDCAT CREEK

4.9 miles east from El Po, Mariposa, CA

Built 1985 Load: 68.9 t ADT: 2,080

BITNEY SPRINGS RD

Fair

Over: DEER CREEK

4.3 MI NE/O GRASS VALLEY, Nevada, CA

Built 1981 Load: 69.0 t ADT: 2,214

GRAND ST

Fair

Over: ALAMEDA LAKE

0.1 MI N/E OF OTIS DR, Alameda, CA

Built 1958 Load: 69.0 t ADT: 7,156

STATE ROUTE 96

Fair

Over: HILLSIDE

01-HUM-096-16.84, Humboldt, CA

Built 1964 Load: 69.3 t ADT: 1,505

ELECTRIC AVE

Fair

Over: BUTLER SLOUGH

0.6 MI NE OF SR 99, Tehama, CA

Built 1930 Load: 69.3 t ADT: 10

BROADWAY

Fair

Over: GOLDEN GATE AVE

04-ALA-024-R4.43-OAK, Alameda, CA

Built 1934 Load: 69.3 t ADT: 1,050

STATE ROUTE 91

Fair

Over: BNSF RY AMTRAK METROLINK

08-RIV-091-R2.84-POM, Riverside, CA

Built 1970 Load: 70.0 t ADT: 270,000

HOWE CREEK ROAD

Fair

Over: ATWELL CREEK

1.3 MI S/O BLUE SLIDE RD, Humboldt, CA

Built 1960 Load: 70.6 t ADT: 68

EAST FORK HYFK RD

Fair

Over: EAST FORK HAYFORK CREEK

3.7 MI E OF WILDWOOD ROAD, Trinity, CA

Built 2004 Load: 70.6 t ADT: 50

AIRPORT BLVD

Fair

Over: CORRALITOS CREEK

0.2 MI N FREEDOM BLVD, Santa Cruz, CA

Built 1969 Load: 70.6 t ADT: 20,000

E60-N&S15 CONNECTR

Fair

Over: MILLIKEN AV-E60 ON-RAMP

08-RIV-060-R0.15, Riverside, CA

Built 1979 Load: 70.6 t ADT: 15,500

STATE ROUTE 134

Fair

Over: RIVERSIDE DR & ON-RAMP

07-LA-134-2.90-BRB, Los Angeles, CA

Built 1962 Load: 71.0 t ADT: 213,000

STATE ROUTE 71 EB

Fair

Over: I 10 & CONN

07-LA-071-R0.52-POM, Los Angeles, CA

Built 1972 Load: 71.3 t ADT: 31,500

RAILROAD AVENUE

Fair

Over: NEWHALL CREEK

789 FT N/O LYONS AVE, Los Angeles, CA

Built 1996 Load: 71.3 t ADT: 37,000

GOETZ ROAD

Fair

Over: SAN JACINTO RIVER

1.4 MI. S/O ELLIS AVENUE, Riverside, CA

Built 1970 Load: 71.3 t ADT: 12,746

EUCLID AVE OFF-RAM

Fair

Over: SB INTERSTATE 5

07-LA-005-16.14-LA, Los Angeles, CA

Built 1960 Load: 71.6 t ADT: 129,000

Seaside Freeway

Fair

Over: Pier S Avenue

0.7 MILE EO NAVY WAY, Los Angeles, CA

Built 2005 Load: 71.6 t ADT: 47,900

ROAD 168

Fair

Over: MIDDLE FORK TULE RIVER

0.8 MI N OF AVE 168, Tulare, CA

Built 1980 Load: 71.9 t ADT: 375

DUTCH CREEK ROAD

Fair

Over: TRINITY RIVER

0.3 MI S OF SR 299, Trinity, CA

Built 1981 Load: 72.3 t ADT: 782

COUNTY RD 68

Fair

Over: N FK LOGAN CREEK

2.7 MI E OF I-5, Glenn, CA

Built 1977 Load: 72.3 t ADT: 225

INTERSTATE 280

Fair

Over: SAN BRUNO AVENUE

04-SM-280-R20.75-SBR, San Mateo, CA

Built 1971 Load: 72.3 t ADT: 101,000

SM 220

Fair

Over: NORTH FORK TULE RIVER

0.1 MI BALCH PARK RD, Tulare, CA

Built 1977 Load: 72.3 t ADT: 175

YORK BLVD

Fair

Over: ARROYO SECO CHANNEL

AT SR 110, Los Angeles, CA

Built 1912 Load: 72.3 t ADT: 26,327

STATE ROUTE 57

Fair

Over: KATELLA AVE

12-ORA-057-12.54-ANA, Orange, CA

Built 1974 Load: 72.3 t ADT: 229,000

SOUTHHAMPTON COURT

Fair

Over: MERIDIAN STREET CHANNEL

100 E/O MERIDIAN STREET, Riverside, CA

Built 1988 Load: 72.6 t ADT: 1,000

RESEDA BLVD

Fair

Over: ROUTE 118

07-LA-118-R5.81-LA, Los Angeles, CA

Built 1980 Load: 72.9 t ADT: 24,355

PESULA ROAD

Fair

Over: US HIGHWAY 101

01-HUM-101-31.61, Humboldt, CA

Built 1961 Load: 73.2 t ADT: 155

EXCELSIOR AVE

Fair

Over: LAKELAND CANAL

BTWN 4TH & 5TH AVE, Kings, CA

Built 1985 Load: 73.2 t ADT: 400

VIA NOVENO

Fair

Over: ENGLISH CANYON CHANNEL

300 W/O LOS ALISOS BLVD, Orange, CA

Built 1976 Load: 73.2 t ADT: 1,025

INTERSTATE 5

Fair

Over: SANTA MARGARITA RIVER

11-SD-005-R56.43L-OCN, San Diego, CA

Built 1967 Load: 73.2 t ADT: 70,250

INTERSTATE 210

Fair

Over: KINNELOA AVE

07-LA-210-R29.02-PAS, Los Angeles, CA

Built 1976 Load: 73.4 t ADT: 269,000

BARTLETT SPRGS RD

Fair

Over: STANTON CREEK

19.6 MI N OF SR 20, Lake, CA

Built 1960 Load: 73.5 t ADT: 108

NEWTOWN RD

Fair

Over: SOUTH FORK WEBER CREEK

0.7 MI W OF SNOWS RD, El Dorado, CA

Built 1929 Load: 73.5 t ADT: 2,667

SIERRA MADRE BLVD

Fair

Over: SIERRA MADRE WASH

0.2MI W/O SANTA ANITA AVE, Los Angeles, CA

Built 1953 Load: 73.5 t ADT: 4,896

MCADAMS CREEK RD

Fair

Over: MCADAMS CREEK

2.55 MI N SR 3, Siskiyou, CA

Built 1975 Load: 73.9 t ADT: 256

LA PORTE RD

Fair

Over: NATCHEZ CREEK

AT YUBA/BUTTE COUNTY LINE, Yuba, CA

Built 1984 Load: 73.9 t ADT: 390

W10 BUSWAY

Fair

Over: BALDWIN AVE

07-LA-010S-27.96-EMTE, Los Angeles, CA

Built 1956 Load: 74.2 t ADT: 500

CABRITO ROAD

Fair

Over: VAN NUYS BLVD

0.4 KM NORTH OF SATICOY, Los Angeles, CA

Built 1966 Load: 74.2 t ADT: 550

INTERSTATE 5

Fair

Over: SANTA MARGARITA RIVER

11-SD-005-R56.43R-OCN, San Diego, CA

Built 1967 Load: 74.2 t ADT: 132,000

SOUTH FORK ROAD

Fair

Over: KERLIN CREEK

3.8 MI N HYAMPOM RD, Trinity, CA

Built 1960 Load: 74.5 t ADT: 160

ANAPOLIS RD

Fair

Over: WHEATFIELD FK GUALALA RI

1.7 MI E/O SR 1, Sonoma, CA

Built 1974 Load: 74.8 t ADT: 400

S ENGLEHART AVE

Fair

Over: TRAVERS CREEK

0.7 MI S/O MANNING AVE, Fresno, CA

Built 1945 Load: 74.8 t ADT: 485

SHASTA BLVD

Fair

Over: JUNIPER GULCH

0.1 MI S OF 68TH AVE, Tehama, CA

Built 1956 Load: 75.2 t ADT: 162

HAZEL AVE

Fair

Over: SAN LORENZO CREEK

JUST NE OF MAIN ST, Alameda, CA

Built 1925 Load: 75.2 t ADT: 2,878

PREFUMO CANYON RD

Fair

Over: PREFUMO CANYON CREEK

2.0 MI W LOS OSOS VLLY RD, San Luis Obispo, CA

Built 1974 Load: 75.2 t ADT: 300

JEFFREY ROAD SBND

Fair

Over: SAN DIEGO CREEK CHANNEL

0.2 MI S BARRANCA PKWAY, Orange, CA

Built 1980 Load: 75.2 t ADT: 24,600

INTERSTATE 280 SB

Fair

Over: EDGEWOOD ROAD

04-SM-280-6.65, San Mateo, CA

Built 1973 Load: 75.8 t ADT: 50,000

INTERSTATE 15

Fair

Over: EAST FORK CAJON CREEK

08-SBD-015-R20.67, San Bernardino, CA

Built 1969 Load: 76.1 t ADT: 158,000

REDLANDS AVE

Fair

Over: TRUCKEE CREEK

0.4 MI S POMONA AVE, Tehama, CA

Built 1958 Load: 76.5 t ADT: 200

SR 4 WB

Fair

Over: E4-N5 W4-S5 CONN RAMPS

10-SJ-004-R16.02-STKN, San Joaquin, CA

Built 1972 Load: 76.5 t ADT: 7,900

Showing 12,401-12,450 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.