Los Angeles County, CA

3,937 public highway bridges

Los Angeles County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Los Angeles County, California contains 3,937 public highway bridges. Roughly 34.3% are rated “Good,” 17.1% “Fair,” and 2.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

3,937
Total Bridges
34.3%
Good
17.1%
Fair
2.2%
Poor Condition

Condition Distribution

Good
34.3% (1,350)
Fair
17.1% (675)
Poor
2.2% (88)

All Bridges (3,937)

BREA CYN RD

Poor

Over: SAN JOSE CRK

150FT S/O VAL BLVD, Los Angeles, CA

Built 1968 Load: 34.0 t ADT: 23,929

AGOURA RD

Poor

Over: LAS VIRGENES CRK

0.1MI W/O LAS VIRGENES, Los Angeles, CA

Built 1972 Load: 34.3 t ADT: 8,709

LIVE OAK AVE

Poor

Over: SAN GABRIEL RIV

0.3MI E/O I-605 FWY, Los Angeles, CA

Built 1961 Load: 34.3 t ADT: 25,359

LOWER AZUSA RD

Poor

Over: ARCADIA WASH

0.4MI W/O SANTA ANITA AVE, Los Angeles, CA

Built 1959 Load: 34.7 t ADT: 30,816

GARIBALDI AVE

Poor

Over: EATON WASH

0.4MI W/O ROSEMEAD BLVD, Los Angeles, CA

Built 1953 Load: 34.7 t ADT: 918

WALNUT GROVE AVE

Poor

Over: ALHAMBRA WASH

0.8MI N/O SR-60 FWY, Los Angeles, CA

Built 1937 Load: 35.3 t ADT: 17,934

PUENTE AVE

Poor

Over: BIG DALTON WASH

0.2MI S/O RAMONA BLVD, Los Angeles, CA

Built 1959 Load: 35.6 t ADT: 2,137

DUARTE RD

Poor

Over: EATON WASH

0.5MI E/O SN GABRIEL BLVD, Los Angeles, CA

Built 1989 Load: 36.9 t ADT: 12,063

CENTRALIA ST

Poor

Over: COYOTE CRK

0.1MI E/O BLOOMFIELD AVE, Los Angeles, CA

Built 1955 Load: 37.3 t ADT: 12,000

LONGDEN AVE

Poor

Over: SANTA ANITA WASH

0.8MI E/O SANTA ANITA AVE, Los Angeles, CA

Built 1959 Load: 37.3 t ADT: 6,901

AZUSA AVE

Poor

Over: BIG DALTON WASH

0.1MI S/O ARROW HWY, Los Angeles, CA

Built 1941 Load: 37.3 t ADT: 35,490

SLAUSON AVE

Poor

Over: LOS ANGELES RIV

0.8MI E/O ATLANTIC BLVD, Los Angeles, CA

Built 1942 Load: 38.2 t ADT: 34,736

STIMSON AVE

Poor

Over: SAN JOSE CRK

E/O HACIENDA BLVD, Los Angeles, CA

Built 1967 Load: 38.9 t ADT: 18,869

EL SEGUNDO BLVD

Poor

Over: ACTA

25FT E/O ALAMEDA ST, Los Angeles, CA

Built 2000 Load: 40.5 t ADT: 11,268

STATE ROUTE 134

Poor

Over: PACIFIC AVE

07-LA-134-R6.57-GNDL, Los Angeles, CA

Built 1967 Load: 41.1 t ADT: 240,000

SEVENTH AVE

Poor

Over: SAN JOSE CRK CHAN

0.4MI N/O SR-60 FWY, Los Angeles, CA

Built 1967 Load: 41.1 t ADT: 26,484

PARRIOT PL

Poor

Over: SAN JOSE CRK

100FT W/O HACIENDA BLVD, Los Angeles, CA

Built 1964 Load: 41.1 t ADT: 2,244

SAN GABRIEL RIV PK

Poor

Over: SAN GABRIEL RIV PKWAY

0.6MI N/O BEVERLY BLVD, Los Angeles, CA

Built 1954 Load: 41.5 t ADT: 11,088

124TH ST

Poor

Over: ACTA

50FT E/O ALAMEDA ST, Los Angeles, CA

Built 2000 Load: 41.5 t ADT: 2,336

GARFIELD AVE

Poor

Over: UPRR

50FT S/O W MISSION RD, Los Angeles, CA

Built 1979 Load: 41.8 t ADT: 34,511

INTERSTATE 710

Poor

Over: LOS ANGELES RIVER

07-LA-710-17.34-SGT, Los Angeles, CA

Built 1955 Load: 42.1 t ADT: 220,000

25TH ST

Poor

Over: ACTA

0.2MI E/O ALAMEDA ST, Los Angeles, CA

Built 2001 Load: 42.4 t ADT: 7,419

ALAMEDA ST

Poor

Over: COMPTON CRK

0.1MI S/O ARTESIA BLVD, Los Angeles, CA

Built 1937 Load: 42.8 t ADT: 10,710

DOWNEY RD

Poor

Over: LOS ANGELES RIV

0.8MI E/O SOTO ST, Los Angeles, CA

Built 1931 Load: 43.1 t ADT: 25,265

NELSON AVE

Poor

Over: PUENTE CRK

0.5MI S/O SUNSET AVE, Los Angeles, CA

Built 1955 Load: 44.7 t ADT: 9,308

VALLEY BLVD

Poor

Over: EATON WASH

1.0MI E/O ROSEMEAD BLVD, Los Angeles, CA

Built 1956 Load: 45.7 t ADT: 26,536

ACCESS RD CITY YDS

Poor

Over: ALHAMBRA WASH

0.1MI W/O NEW AVE, Los Angeles, CA

Built 1969 Load: 46.7 t ADT: 505

U.S. HIGHWAY 101

Poor

Over: LOS ANGELES RIVER

07-LA-101-10.83-LA, Los Angeles, CA

Built 1957 Load: 47.0 t ADT: 175,000

WATER ST

Poor

Over: SAN JOSE CR

0.6MI N/O SR-60 FWY, Los Angeles, CA

Built 1967 Load: 49.6 t ADT: 184

PEARBLOSSOM HWY

Poor

Over: SPRR

2.0MI N/O SR-14 FWY, Los Angeles, CA

Built 1959 Load: 52.2 t ADT: 40,280

AVE S E

Poor

Over: RR

2MI E/O SIERRA HWY, Los Angeles, CA

Built 2007 Load: 52.5 t ADT: 28,154

NOGALES ST

Poor

Over: SAN JOSE CRK

0.1MI S/O VALLEY BLVD, Los Angeles, CA

Built 1968 Load: 53.8 t ADT: 40,898

ATLANTIC BLVD

Poor

Over: UPRR

50FT S/O MISSION RD, Los Angeles, CA

Built 1979 Load: 56.7 t ADT: 35,177

AVE S W

Poor

Over: RR

2MI E/O SIERRA HWY, Los Angeles, CA

Built 2007 Load: 59.6 t ADT: 28,154

INTERSTATE 210

Poor

Over: BIG TUJUNGA WASH

07-LA-210-R9.89-LA, Los Angeles, CA

Built 1980 Load: 61.2 t ADT: 113,000

FREMONT AVE

Poor

Over: UPRR

50FT S/O MISSION RD, Los Angeles, CA

Built 1979 Load: 63.5 t ADT: 51,262

MARENGO AVE

Poor

Over: UPRR

50FT S/O MISSION RD, Los Angeles, CA

Built 1979 Load: 67.1 t ADT: 14,009

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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.