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)

STATE ROUTE 14

Good

Over: RED ROVER MINE ROAD

07-LA-014-R47.34, Los Angeles, CA

Built 1965 Load: 24.3 t ADT: 49,000

STATE ROUTE 14

Good

Over: RED ROVER MINE ROAD

07-LA-014-R47.34, Los Angeles, CA

Built 1965 Load: 24.3 t ADT: 49,000

SIERRA HWY

Good

Over: LOS ANGELES AQUEDUCT

07-LA-014U-T27.37, Los Angeles, CA

Built 1938 Load: 24.3 t ADT: 5,500

STATE ROUTE 39

Good

Over: N FORK SAN GABRIEL RIVER

07-LA-039-32.50, Los Angeles, CA

Built 1932 Load: 24.3 t ADT: 220

STATE ROUTE 1

Good

Over: MARINA DITCH

07-LA-001-30.70-LA, Los Angeles, CA

Built 1932 Load: 24.3 t ADT: 60,000

STATE ROUTE 1

Good

Over: BIXBY SLOUGH

07-LA-001-12.01-LA, Los Angeles, CA

Built 1934 Load: 24.3 t ADT: 50,000

STATE ROUTE 14

Good

Over: AVENUE "S"

07-LA-014-R58.17, Los Angeles, CA

Built 1966 Load: 24.3 t ADT: 84,000

INTERSTATE 110

Good

Over: STORM DRAIN

07-LA-110-R1.41-LA, Los Angeles, CA

Built 1956 Load: 24.3 t ADT: 72,000

STATE ROUTE 14

Good

Over: ANAVERDE CREEK

07-LA-014-R59.11-PMDL, Los Angeles, CA

Built 1966 Load: 24.3 t ADT: 84,000

INTERSTATE 605

Good

Over: FOSTER ROAD

07-LA-605-R7.34-NRW, Los Angeles, CA

Built 1966 Load: 24.3 t ADT: 297,000

WARDLOW RD

Good

Over: LOS CERRITOS DRN CH

0.3MI E/O CLARK AVE, Los Angeles, CA

Built 1962 Load: 24.3 t ADT: 12,463

HARVEY WAY

Good

Over: LOS CERRITOS DRN CHAN

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

Built 1963 Load: 24.3 t ADT: 4,284

ARBOR RD

Good

Over: LOS CERRITOS DRN CHAN

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

Built 1963 Load: 24.3 t ADT: 1,224

ATHERTON ST

Good

Over: STORM DRN #133

30FT W/O CLARK AVE, Los Angeles, CA

Built 1959 Load: 24.3 t ADT: 21,200

SEPULVEDA BLVD

Good

Over: FOX HILLS WASH

25FT S/O CENTINELA AVE, Los Angeles, CA

Built 1936 Load: 24.3 t ADT: 55,000

FIRESTONE BLVD

Good

Over: SILVERBOW STORM DRN

0.5MI SE/O SAN ANTONIO DR, Los Angeles, CA

Built 1934 Load: 24.3 t ADT: 26,842

SIERRA HWY

Good

Over: UNNAMED WASH

MM 4.00, Los Angeles, CA

Built 1921 Load: 24.3 t ADT: 4,141

SIERRA HWY

Good

Over: UNNAMED WASH

0.3MI N/O AVE E, Los Angeles, CA

Built 1921 Load: 24.3 t ADT: 3,838

SIERRA HWY

Good

Over: OBAN WASH

2.2MI S/O KERN CO LINE, Los Angeles, CA

Built 1921 Load: 24.3 t ADT: 3,838

THE OLD RD

Good

Over: GAVIN CYN CRK

0.1MI W/O I-5 FWY, Los Angeles, CA

Built 1928 Load: 24.3 t ADT: 10,841

CARSON ST

Good

Over: LOS CERRITOS DRN CHAN

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

Built 1942 Load: 24.3 t ADT: 31,800

CARSON ST

Good

Over: PALO VERDE STORM DN

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

Built 1950 Load: 24.3 t ADT: 29,786

CARSON ST

Good

Over: ARTESIA-NORWALK STORM DN

0.5MI E/O I-605 FWY, Los Angeles, CA

Built 1955 Load: 24.3 t ADT: 16,892

SOUTH ST

Good

Over: CLARK AVE DRN

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

Built 1962 Load: 24.3 t ADT: 24,092

RIVERSIDE DR

Good

Over: CHINO CRK

0.3MI E/O TOWNE AVE, Los Angeles, CA

Built 1962 Load: 24.3 t ADT: 11,200

STAGE RD

Good

Over: LA MIRADA CHAN

0.5MI E/O VALLEY VIEW AVE, Los Angeles, CA

Built 1968 Load: 24.3 t ADT: 7,079

TELEGRAPH RD

Good

Over: SORENSON DRN

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

Built 1960 Load: 24.3 t ADT: 24,752

SANTA FE SPRINGS R

Good

Over: SORENSON DRN

1.0MI N/O TELEGRAPH RD, Los Angeles, CA

Built 1959 Load: 24.3 t ADT: 13,871

ALOSTA AVE

Good

Over: E BRANCH BIG DALTON WASH

1.2MI E/O GLENDORA AVE, Los Angeles, CA

Built 1968 Load: 24.3 t ADT: 30,352

EL SEGUNDO BLVD

Good

Over: DOMINGUEZ CHAN

100FT E/O CRENSHAW BLVD, Los Angeles, CA

Built 1966 Load: 24.3 t ADT: 26,857

CARSON ST

Good

Over: LAKEWOOD COUNTRY CLB PUC

0.5MI W/O LAKEWOOD BLVD, Los Angeles, CA

Built 1964 Load: 24.3 t ADT: 31,401

JOHN S GIBSON BLVD

Good

Over: STORM DRAIN

700' N CHANNEL ST, Los Angeles, CA

Built 1963 Load: 24.3 t ADT: 19,885

REDONDO BCH BLVD

Good

Over: DOMINGUEZ CHAN

0.3MI W/O CRENSHAW BLVD, Los Angeles, CA

Built 1960 Load: 24.3 t ADT: 26,624

CARMENITA RD

Good

Over: SORENSON DRN

0.5MI N/O TELEGRAPH RD, Los Angeles, CA

Built 1960 Load: 24.3 t ADT: 26,049

GREENLEAF AVE

Good

Over: SORENSON DRN

0.3MI S/O MULBERRY RD, Los Angeles, CA

Built 1960 Load: 24.3 t ADT: 10,229

CRENSHAW BLVD

Good

Over: DOMINGUEZ CHAN

0.3MI S/O REDONDO BEACH, Los Angeles, CA

Built 1960 Load: 24.3 t ADT: 32,240

CLARK AVE

Good

Over: KEYNOTE ST LATERAL

0.6MI S/O CARSON ST, Los Angeles, CA

Built 1963 Load: 24.3 t ADT: 22,790

SPRING ST

Good

Over: LOS CERRITOS DRN CHANN

0.3MI W/O BELLFLOWER BLVD, Los Angeles, CA

Built 1955 Load: 24.3 t ADT: 23,638

WARDLOW RD

Good

Over: PALO VERDE DRN

50FT W/O LOS COYOTES DIAG, Los Angeles, CA

Built 1958 Load: 24.3 t ADT: 14,760

TOWNE AVE

Good

Over: CHINO CRK

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

Built 1968 Load: 24.3 t ADT: 8,900

TRIUNFO CYN RD

Good

Over: POTRERO VAL CR

0.8MI W/O LINDERO CYN RD, Los Angeles, CA

Built 1968 Load: 24.3 t ADT: 5,783

PUENTE ST

Good

Over: CHARTER OAK WASH

BARRANCA AVE, Los Angeles, CA

Built 1966 Load: 24.3 t ADT: 24,915

WARDLOW RD

Good

Over: NORWALK DRN CHAN

0.5MI S/O I-605 FWY, Los Angeles, CA

Built 1963 Load: 24.3 t ADT: 19,186

AVALON BLVD

Good

Over: PRIVATE DRN #669

0.6MI N/O I-405 FWY, Los Angeles, CA

Built 1966 Load: 24.3 t ADT: 25,348

VERMONT AVE

Good

Over: PRIVATE DRN #553

0.1MI S/O SEPULVEDA BL, Los Angeles, CA

Built 1967 Load: 24.3 t ADT: 29,610

SPRING ST

Good

Over: PALO VERDE DRN

50FT E/O WOODRUFF AVE, Los Angeles, CA

Built 1961 Load: 24.3 t ADT: 28,832

KANAN RD

Good

Over: MEDEA CRK

0.4MI N/O US-101 FWY, Los Angeles, CA

Built 1971 Load: 24.3 t ADT: 44,084

AGOURA RD

Good

Over: PRIVATE DRN #571

200FT S/O US-101 FWY, Los Angeles, CA

Built 1971 Load: 24.3 t ADT: 1,224

DRIVER AVE

Good

Over: CHESEBORO CYN CRK

300FT W/O CHESEBORO RD, Los Angeles, CA

Built 1972 Load: 24.3 t ADT: 3,927

WILEY CYN RD

Good

Over: SANTA CLARA RIV SF

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

Built 1971 Load: 24.3 t ADT: 12,463

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.