Los Angeles County, CA

3,937 public highway bridges

Los Angeles County Bridge Snapshot

Los Angeles County, California contains 3,937 public highway bridges in the FHWA National Bridge Inventory. Roughly 34.3% are rated “Good,” 17.1% “Fair,” 2.2% “Poor,” and 2.2% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

3,937
Total Bridges
34.3%
Good
2.2%
Poor
2.2%
Structurally Deficient

Condition Distribution

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial