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)

LA SUBIDA DR

Fair

Over: HACIENDA CRK

0.1MI W/O HACIENDA BLVD, Los Angeles, CA

Built 1962 Load: 24.3 t ADT: 2,005

CEDARTREE RD

Fair

Over: LEMORAN AVE STORM DRN

0.1MI W/O PASSONS BLVD, Los Angeles, CA

Built 1967 Load: 24.3 t ADT: 2,499

BROOKPARK RD

Fair

Over: LEMORAN AVE STORM DRN

0.1MI W/O PASSONS BLVD, Los Angeles, CA

Built 1967 Load: 24.3 t ADT: 408

ROSCOE BLVD

Fair

Over: PACOIMA WASH

0.5 MI E/O SEPULVEDA BLVD, Los Angeles, CA

Built 1957 Load: 24.3 t ADT: 65,311

LASSEN ST

Fair

Over: GRANADA CHANNEL

0.1 MI W. HAVENHURST AVE, Los Angeles, CA

Built 1972 Load: 24.3 t ADT: 16,500

STATE ROUTE 57

Fair

Over: DIAMOND BAR BLVD

07-LA-057-R1.94-DMBR, Los Angeles, CA

Built 1972 Load: 24.6 t ADT: 198,000

FIFTH ST

Fair

Over: LITTLE DALTON WASH

0.5MI E/O AZUSA AVE, Los Angeles, CA

Built 1960 Load: 24.6 t ADT: 1,273

CERRITOS AVE

Fair

Over: LITTLE DALTON WASH

0.4MI S/O FOOTHILL BLVD, Los Angeles, CA

Built 1960 Load: 24.6 t ADT: 2,140

STATE ROUTE 1

Fair

Over: BALLONA CREEK

07-LA-001-30.36-LA, Los Angeles, CA

Built 1937 Load: 24.9 t ADT: 50,000

RAMP/CONNECTOR 118

Fair

Over: BROWNS CANYON WASH

07-LA-118-R2.55-LA, Los Angeles, CA

Built 1971 Load: 24.9 t ADT: 8,268

N110-N5 CONNECTOR

Fair

Over: HILLSIDE

07-LA-110-25.43L-LA, Los Angeles, CA

Built 1931 Load: 24.9 t ADT: 100

OLD TOPANGA CYN RD

Fair

Over: TOPANGA CYN CRK

50FT W/O TOPANGA CYN RD, Los Angeles, CA

Built 1926 Load: 24.9 t ADT: 3,900

SIERRA HWY NBND

Fair

Over: SANTA CLARA RIV

0.3MI S/O SOLEDAD CYN RD, Los Angeles, CA

Built 1968 Load: 24.9 t ADT: 18,044

INTERSTATE 5

Fair

Over: MARIETTA STREET

07-LA-005-16.29-LA, Los Angeles, CA

Built 1948 Load: 25.3 t ADT: 258,000

AMELIA AVE

Fair

Over: SAN DIMAS WASH

0.1MI N/O FOOTHILL AVE, Los Angeles, CA

Built 1962 Load: 25.3 t ADT: 7,262

GREENLEAF BLVD

Fair

Over: COMPTON CRK

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

Built 1963 Load: 25.3 t ADT: 8,446

AZUSA LN

Fair

Over: LITTLE DALTON WASH

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

Built 1960 Load: 25.6 t ADT: 153

INTERSTATE 5

Fair

Over: METROLINK&UP RR TUNNEL#5

07-LA-005S-C45.75, Los Angeles, CA

Built 1955 Load: 25.9 t ADT: 203,359

OLEANDER AVE

Fair

Over: COMPTON CRK

0.3MI S/O ALONDRA BLVD, Los Angeles, CA

Built 1938 Load: 25.9 t ADT: 11,330

INTERSTATE 5

Fair

Over: UP RR & AMTRAK

07-LA-005-18.96-LA, Los Angeles, CA

Built 1960 Load: 26.2 t ADT: 241,740

INTERSTATE 605

Fair

Over: UP RR & AMTRAK

07-LA-605-R11.20-SFSP, Los Angeles, CA

Built 1965 Load: 26.2 t ADT: 264,000

INTERSTATE 210

Fair

Over: BONNIE COVE

07-LA-210-R42.66-GDR, Los Angeles, CA

Built 1970 Load: 26.2 t ADT: 256,000

2ND ST

Fair

Over: ALAMITOS BAY CHAN

1.3MI W/O SR-1 HWY, Los Angeles, CA

Built 1967 Load: 26.2 t ADT: 43,248

SLAUSON AVE

Fair

Over: SAN GAB R BNSF UPRR ATSF

0.8MI W/O 605 FWY, Los Angeles, CA

Built 1958 Load: 26.2 t ADT: 30,000

STATE ROUTE 91

Fair

Over: UP RR

07-LA-091-R16.54-BFL, Los Angeles, CA

Built 1968 Load: 26.6 t ADT: 242,000

FOOTHILL BLVD

Fair

Over: SANTA ANITA WASH

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

Built 1928 Load: 26.6 t ADT: 27,242

GLENOAKS BLVD

Fair

Over: PACOIMA WASH

0.4MI E/O MACLAY AVE, Los Angeles, CA

Built 1953 Load: 26.6 t ADT: 21,632

INTERSTATE 110

Fair

Over: LACMTA & BNSF RY

07-LA-110-5.11-LA, Los Angeles, CA

Built 1962 Load: 26.9 t ADT: 199,500

ROSECRANS AVE W

Fair

Over: LOS ANGELES RIV

0.1MI E/O I-710 FWY, Los Angeles, CA

Built 1951 Load: 26.9 t ADT: 13,699

ROSECRANS AVE E

Fair

Over: LOS ANGELES RIV

0.1MI E/O I-710 FWY, Los Angeles, CA

Built 1951 Load: 26.9 t ADT: 13,248

INTERSTATE 5

Fair

Over: SAN GABRIEL RIVER

07-LA-005-7.06-DNY, Los Angeles, CA

Built 1953 Load: 27.2 t ADT: 234,600

FLORENCE AVE

Fair

Over: RIO HONDO

1.0MI W/O PARAMOUNT BLVD, Los Angeles, CA

Built 1953 Load: 27.2 t ADT: 37,484

CARSON ST

Fair

Over: DOMINGUEZ CHAN

0.1MI E/O I-405 FWY, Los Angeles, CA

Built 1959 Load: 27.2 t ADT: 15,600

FIRESTONE BLVD

Fair

Over: RIO HONDO

0.5MI E/O I-710 FWY, Los Angeles, CA

Built 1933 Load: 27.2 t ADT: 47,632

E60-N57 CONNECTOR

Fair

Over: PROSPECTORS ROAD

07-LA-060-R25.36-DMBR, Los Angeles, CA

Built 1970 Load: 27.5 t ADT: 71,400

E210-S57 CONNECTOR

Fair

Over: LACMTA & BNSF RY

07-LA-210-R44.04-GDR, Los Angeles, CA

Built 1970 Load: 27.5 t ADT: 95,000

MLK Jr. St.

Fair

Over: PRIVATE DRN #212

0.1MI E/O MAIN ST, Los Angeles, CA

Built 1967 Load: 27.5 t ADT: 6,120

STATE ROUTE 22 EB

Fair

Over: LOS CERRITOS CHANNEL

07-LA-022-1.09-LBCH, Los Angeles, CA

Built 1955 Load: 27.9 t ADT: 33,500

RAMP/CONNECTOR 710

Fair

Over: LOS ANGELES RIVER

07-LA-710-9.30-LBCH, Los Angeles, CA

Built 1963 Load: 27.9 t ADT: 35,000

INTERSTATE 405

Fair

Over: JEFFERSON BLVD

07-LA-405-25.93-LA, Los Angeles, CA

Built 1963 Load: 27.9 t ADT: 284,000

ROCKVALE AVE

Fair

Over: LITTLE DALTON WASH

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

Built 1961 Load: 27.9 t ADT: 1,273

APPIAN WAY

Fair

Over: ALAMITOS BAY

0.2MI N/O 2ND ST, Los Angeles, CA

Built 1960 Load: 27.9 t ADT: 8,755

AVENUE 60

Fair

Over: ARROYO SECO CHANNEL

AT SR 110, Los Angeles, CA

Built 1909 Load: 27.9 t ADT: 16,300

INTERSTATE 5

Fair

Over: GORMAN SCHOOL RD

07-LA-005-R85.80, Los Angeles, CA

Built 1966 Load: 28.2 t ADT: 37,708

LONG BCH BLVD

Fair

Over: LOS ANGELES RIV

0.1MI E/O I-710 FWY, Los Angeles, CA

Built 1946 Load: 28.2 t ADT: 25,758

ARROW HWY

Fair

Over: BIG DALTON WASH

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

Built 1956 Load: 28.2 t ADT: 12,059

CHIQUITO CYN RD

Fair

Over: SAN MRTNZ CHIQUITO CYN C

0.3MI N/O SR-126 HWY, Los Angeles, CA

Built 1958 Load: 28.2 t ADT: 1,836

INTERSTATE 5

Fair

Over: RIVERSIDE DR

07-LA-005-21.94-LA, Los Angeles, CA

Built 1961 Load: 28.5 t ADT: 283,000

STATE ROUTE 60

Fair

Over: RIO HONDO

07-LA-060-8.89, Los Angeles, CA

Built 1966 Load: 28.5 t ADT: 224,000

N2-W210 CONNECTOR

Fair

Over: WALTONIA DR

07-LA-002-R23.15-LCF, Los Angeles, CA

Built 1972 Load: 28.5 t ADT: 27,400

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.