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

STATE ROUTE 58

Good

Over: WEST SIDE CANAL

06-KER-058-24.08, Kern, CA

Built 1982 Load: 20.4 t ADT: 9,000

STATE ROUTE 33

Good

Over: CHORRO GRANDE CREEK

07-VEN-033-36.13, Ventura, CA

Built 1981 Load: 20.4 t ADT: 340

INTERSTATE 405

Good

Over: MONTANA AVE

07-LA-405-32.50-LA, Los Angeles, CA

Built 1956 Load: 20.4 t ADT: 283,000

INTERSTATE 710

Good

Over: DEL AMO BLVD

07-LA-710-10.82-LBCH, Los Angeles, CA

Built 1953 Load: 20.4 t ADT: 190,000

INTERSTATE 605

Good

Over: INTERSTATE 10

07-LA-605-R20.17-BWP, Los Angeles, CA

Built 1971 Load: 20.4 t ADT: 230,000

STATE ROUTE 91

Good

Over: BIXBY AVE

07-LA-091-R15.87-BFL, Los Angeles, CA

Built 1968 Load: 20.4 t ADT: 242,000

INTERSTATE 605 SB

Good

Over: SANTA FE FLOOD BASIN

07-LA-605-25.09-IRW, Los Angeles, CA

Built 1970 Load: 20.4 t ADT: 67,000

EVERGREEN AVE

Good

Over: SAWPIT WASH

0.2MI W/O MOUNTAIN AVE, Los Angeles, CA

Built 1968 Load: 20.4 t ADT: 14,139

ORANGE SHOW ROAD

Good

Over: INTERSTATE 215 & RAMPS

08-SBD-215-5.03-SBD, San Bernardino, CA

Built 1972 Load: 20.4 t ADT: 11,000

E58-MAIN ST OFF RP

Good

Over: BNSF RY UP RR & AMTRAK

08-SBD-058-R33.41-BSW, San Bernardino, CA

Built 1997 Load: 20.4 t ADT: 1,001

NATL TRAILS HWY

Good

Over: VERBENA WASH

1 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 20.4 t ADT: 108

EDISON AVE

Good

Over: CYPRESS CHANNEL

0.7 MI W OF 83 @ CYPRESS, San Bernardino, CA

Built 1969 Load: 20.4 t ADT: 22,260

OLIVE HILL ROAD

Good

Over: SANTIAGO CREEK

50 S/O MODJESKA CYN RD, Orange, CA

Built 1970 Load: 20.4 t ADT: 150

MAGNOLIA AVENUE

Good

Over: CARBON CREEK CHANNEL

0.3 MI. S/O CRESCENT AVE., Orange, CA

Built 1959 Load: 20.4 t ADT: 28,100

HARBOR BLVD

Good

Over: UNION PACIFIC RR

0.4 MI N/O BASTANCHRY RD, Orange, CA

Built 1925 Load: 20.4 t ADT: 40,100

STATE ROUTE 86 SB

Good

Over: ANZA DITCH

11-IMP-086-57.82, Imperial, CA

Built 1989 Load: 20.4 t ADT: 7,300

11N46

Good

Over: SO. FORK AMER. RIVER

NO DATA ENTERED, El Dorado, CA

Built 1960 Load: 20.4 t ADT: 50

HILLER ROAD

Good

Over: US HIGHWAY 101

01-HUM-101-R91.99, Humboldt, CA

Built 1964 Load: 20.7 t ADT: 2,500

EEL RIVER DRIVE

Good

Over: SALMON CREEK

0.2 MI S OF US 101, Humboldt, CA

Built 1929 Load: 20.7 t ADT: 644

PASKENTA ROAD

Good

Over: MILL CREEK

2 MI W/O SIMPSON RD, Tehama, CA

Built 1950 Load: 20.7 t ADT: 600

OLD HWY 99 W

Good

Over: COYOTE CREEK

1.2 MI N FLORES AVE, Tehama, CA

Built 1940 Load: 20.7 t ADT: 6,000

AUBURN FOLSOM RD

Good

Over: MINERS RAVINE

2.1 MI N DOUGLAS BLVD, Placer, CA

Built 1950 Load: 20.7 t ADT: 12,779

PACIFIC AVE

Good

Over: CLOSED ROADWAY

0.3 MI E/O SACRAMENTO ST., Placer, CA

Built 1970 Load: 20.7 t ADT: 1,663

MANOR LANE

Good

Over: ADOBE CREEK

0.77 MI N ADOBE RD, Sonoma, CA

Built 1960 Load: 20.7 t ADT: 150

ADOBE RD

Good

Over: LICHAU CREEK

0.08 MI E OLD REDWOOD HWY, Sonoma, CA

Built 1929 Load: 20.7 t ADT: 2,900

BLUE RAVINE ROAD

Good

Over: WILLOW CREEK

0.1 MI W FOLSOM BLVD, Sacramento, CA

Built 1984 Load: 20.7 t ADT: 11,000

MRSHAL PETALUMA RD

Good

Over: SAN ANTONIO CREEK

0.27 MI E CHILENO VLY RD, Marin, CA

Built 1929 Load: 20.7 t ADT: 328

THIRD ST

Good

Over: WILDCAT CREEK

0.1 MI N MARKET AVE, Contra Costa, CA

Built 1955 Load: 20.7 t ADT: 3,119

DAVIS ROAD

Good

Over: KETTLEMAN SLOUGH

1.0 MI N OF 8 MILE ROAD, San Joaquin, CA

Built 1928 Load: 20.7 t ADT: 5,015

STATE ROUTE 49

Good

Over: SIX MILE CREEK

10-CAL-049-6.51, Calaveras, CA

Built 1940 Load: 20.7 t ADT: 6,500

TUOLUMNE RD

Good

Over: CURTIS CREEK

2.4 MI E/O SR 108, Tuolumne, CA

Built 1947 Load: 20.7 t ADT: 12,283

STATE ROUTE 9

Good

Over: BOULDER CREEK

05-SCR-009-13.11, Santa Cruz, CA

Built 1931 Load: 20.7 t ADT: 12,100

WARBURTON AVENUE

Good

Over: CALABAZAS CREEK

INTERSECTION CALABAZAS, Santa Clara, CA

Built 1958 Load: 20.7 t ADT: 1,300

VAN NESS AVE

Good

Over: UNDERGROUND PARKING LOT

NORTH OF TULARE ST, Fresno, CA

Built 1966 Load: 20.7 t ADT: 13,657

STATE ROUTE 1

Good

Over: GRANITE CANYON

05-MON-001-64.33, Monterey, CA

Built 1932 Load: 20.7 t ADT: 11,100

STATE ROUTE 63

Good

Over: PACKWOOD CREEK

06-TUL-063-5.76-VIS, Tulare, CA

Built 1917 Load: 20.7 t ADT: 26,000

ROAD 152

Good

Over: N BRANCH TULE RIVER

@ AVE 184, Tulare, CA

Built 1943 Load: 20.7 t ADT: 980

HINDS AVE

Good

Over: US HIGHWAY 101

05-SLO-101-16.62-PBCH, San Luis Obispo, CA

Built 1960 Load: 20.7 t ADT: 13,500

KIMBERLINA RD

Good

Over: STATE ROUTE 99

06-KER-099-R41.16, Kern, CA

Built 1968 Load: 20.7 t ADT: 6,000

TALLANT ROAD

Good

Over: MISSION CREEK

0.05 MI WEST ALAMAR, Santa Barbara, CA

Built 1971 Load: 20.7 t ADT: 1,400

STATE ROUTE 33

Good

Over: ADOBE CANYON

07-VEN-033-39.03, Ventura, CA

Built 1933 Load: 20.7 t ADT: 340

SOLEDAD CYN RD

Good

Over: INDIAN CYN CRK

0.4MI E/O AGUA DULCE CYN, Los Angeles, CA

Built 1946 Load: 20.7 t ADT: 1,204

INTERSTATE 40 EB

Good

Over: BNSF RY & AMTRAK

08-SBD-040-R141.97-NED, San Bernardino, CA

Built 1973 Load: 20.7 t ADT: 7,350

KENDALL DR

Good

Over: DEVIL CREEK DIVERSION

100 N OF CAMPUS PKWY, San Bernardino, CA

Built 1957 Load: 20.7 t ADT: 21,824

STATE ROUTE 1

Good

Over: MORO CREEK

12-ORA-001-11.90-LGNB, Orange, CA

Built 1924 Load: 20.7 t ADT: 37,250

TUSTIN AVE

Good

Over: STATE ROUTE 22

12-ORA-022-R12.87-ORA, Orange, CA

Built 1967 Load: 20.7 t ADT: 11,000

BELLEGRAVE AVENUE

Good

Over: BLY CHANNEL

0.4 MI. SW/O MISSION BLVD, Riverside, CA

Built 1966 Load: 20.7 t ADT: 3,000

MORRO RD

Good

Over: UNNAMED CREEK

0.4MI S/O FALLBROOK ST, San Diego, CA

Built 1943 Load: 20.7 t ADT: 696

GROSSMONT CENTR DR

Good

Over: MTDB LRT & SDIV RR

160 FT S/O FLETCHER PKWY, San Diego, CA

Built 1961 Load: 20.7 t ADT: 17,750

NO DATA ENTERED

Good

Over: OSO CREEK

NO DATA ENTERED, Santa Barbara, CA

Built 1997 Load: 20.7 t ADT: 50

Showing 13,401-13,450 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.