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)

INTERSTATE 5 NB

Good

Over: MARIETTA STREET

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

Built 1960 Load: 29.2 t ADT: 129,000

INTERSTATE 5 SB

Good

Over: MARIETTA STREET

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

Built 1960 Load: 29.2 t ADT: 129,000

INTERSTATE 5 SB

Good

Over: FRAZIER MT PK RD

07-LA-005-R88.56, Los Angeles, CA

Built 1966 Load: 29.2 t ADT: 37,708

INTERSTATE 5

Good

Over: FRAZIER MT PK RD

07-LA-005-R88.56, Los Angeles, CA

Built 1966 Load: 29.2 t ADT: 37,708

LAKE HUGHES RD

Good

Over: VIOLIN CRK

1.0MI E/O I-5 FWY, Los Angeles, CA

Built 1971 Load: 29.2 t ADT: 2,958

STAGG ST

Good

Over: BULL CREEK

BALBOA & RUFFNER AV, Los Angeles, CA

Built 1955 Load: 29.2 t ADT: 2,000

STATE ROUTE 1

Good

Over: ESCONDIDO CREEK

07-LA-001-51.79, Los Angeles, CA

Built 1926 Load: 29.5 t ADT: 26,500

INTERSTATE 5

Good

Over: MARIETTA STREET

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

Built 1960 Load: 29.5 t ADT: 1,450

EB10-LA CIENEGA BL

Good

Over: GARTH AVE

07-LA-010-R8.65-LA, Los Angeles, CA

Built 1964 Load: 29.5 t ADT: 3,200

INTERSTATE 210 WB

Good

Over: POLK STREET

07-LA-210-R3.28-LA, Los Angeles, CA

Built 1969 Load: 29.5 t ADT: 38,000

N110-W91 CONNECTOR

Good

Over: ACCESS RD (DIRT)

07-LA-110-9.95-LA, Los Angeles, CA

Built 1985 Load: 29.5 t ADT: 5,250

MULHOLLAND HWY

Good

Over: LAS VIRGENES CR

3.5MI S/O US-101 FWY, Los Angeles, CA

Built 1941 Load: 29.5 t ADT: 1,122

PECK RD

Good

Over: SAN GABRIEL RIV

0.2MI S/O SR-60 FWY, Los Angeles, CA

Built 1952 Load: 29.5 t ADT: 14,317

CULLEN AVE

Good

Over: LITTLE DALTON WASH

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

Built 1959 Load: 29.5 t ADT: 3,687

ARTESIA BLVD

Good

Over: DOMINGUEZ CHAN

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

Built 1958 Load: 29.5 t ADT: 37,440

U.S. HIGHWAY 101

Good

Over: LIBERTY CANYON RD

07-LA-101-32.78, Los Angeles, CA

Built 1973 Load: 29.8 t ADT: 167,000

STATE ROUTE 57

Good

Over: METROLINK & UP RR

07-LA-057-R10.40-SDMS, Los Angeles, CA

Built 1971 Load: 29.8 t ADT: 158,000

N605-E210 CONN

Good

Over: BRADBURY FLOOD CTRL CH

07-LA-605-25.65-IRW, Los Angeles, CA

Built 1968 Load: 29.8 t ADT: 28,000

LOS COYOTES DIAG

Good

Over: LOS CERRITOS LINE E CHAN

0.3MI N/O SPRING ST, Los Angeles, CA

Built 1955 Load: 29.8 t ADT: 18,232

ELISE ST

Good

Over: CALIFORNIA AQUEDUCT

0.3MI E/O LA PETITE AVE, Los Angeles, CA

Built 1976 Load: 29.8 t ADT: 455

STATE STREET

Good

Over: METROLINK & BUSWAY

BTW MCALLISTER/POMEROY AV, Los Angeles, CA

Built 1925 Load: 29.8 t ADT: 19,272

INTERSTATE 5 SB

Good

Over: CASTAIC CREEK

07-LA-005-R56.26, Los Angeles, CA

Built 1968 Load: 30.1 t ADT: 54,420

INTERSTATE 210 EB

Good

Over: ABANDONED RR ROW

07-LA-210-R29.09-PAS, Los Angeles, CA

Built 1976 Load: 30.1 t ADT: 269,000

FIRESTONE BLVD S

Good

Over: COYOTE CRK

0.8MI E/O VALLEY VIEW AVE, Los Angeles, CA

Built 1950 Load: 30.1 t ADT: 3,556

LAS TUNAS DR

Good

Over: ARCADIA WASH

0.1MI E/O EL MONTE AVE, Los Angeles, CA

Built 1955 Load: 30.1 t ADT: 21,836

PECK RD

Good

Over: SAN GABRIEL RIV

0.3MI S/O SR-60 FWY, Los Angeles, CA

Built 1952 Load: 30.1 t ADT: 14,317

SOMERSET BLVD

Good

Over: LOS ANGELES RIV

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

Built 1976 Load: 30.1 t ADT: 21,024

WARDLOW RD

Good

Over: EL DORADO PARK E ACSS RD

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

Built 1963 Load: 30.1 t ADT: 19,186

GARZOTA DR

Good

Over: DRY CYN CHAN

0.3MI W/O SECO CYN RD, Los Angeles, CA

Built 1972 Load: 30.1 t ADT: 1,789

PAMPLICO DR

Good

Over: DRY CYN CHAN

0.1MI W/O SECO CYN RD, Los Angeles, CA

Built 1972 Load: 30.1 t ADT: 5,831

INTERSTATE 5

Good

Over: SONORA AVE

07-LA-005-27.54-GNDL, Los Angeles, CA

Built 1957 Load: 30.5 t ADT: 119,286

INTERSTATE 5

Good

Over: SONORA AVE

07-LA-005-27.54-GNDL, Los Angeles, CA

Built 1957 Load: 30.5 t ADT: 119,286

GLEN AVE

Good

Over: SAN JOSE CRK

0.5MI N/O HOLT AVE, Los Angeles, CA

Built 1963 Load: 30.5 t ADT: 1,020

FESTIVIDAD DR

Good

Over: DRY CYN CHAN

0.3MI W/O BOUQUET CYN RD, Los Angeles, CA

Built 1970 Load: 30.5 t ADT: 1,585

RAMONA ST

Good

Over: ALHAMBRA WASH

0.3MI N/O VALLEY BLVD, Los Angeles, CA

Built 1937 Load: 30.5 t ADT: 18,656

STATE ROUTE 1

Good

Over: SAN GABRIEL RIVER

07-LA-001-0.04-LBCH, Los Angeles, CA

Built 1931 Load: 30.8 t ADT: 36,400

ST RTE 1 (PCH)

Good

Over: SANTA MONICA STORM DRAIN

07-LA-001-37.01-LA, Los Angeles, CA

Built 1940 Load: 30.8 t ADT: 82,000

STATE ROUTE 1

Good

Over: BNSF RY

07-LA-001-9.93-LA, Los Angeles, CA

Built 1936 Load: 30.8 t ADT: 26,500

STATE ROUTE 14

Good

Over: AVENUE Q

07-LA-014-R60.19-PMDL, Los Angeles, CA

Built 1966 Load: 30.8 t ADT: 89,000

STATE ROUTE 134 EB

Good

Over: ARBOR DELL HILLMONT UC

07-LA-134-R10.97-LA, Los Angeles, CA

Built 1971 Load: 30.8 t ADT: 223,000

INTERSTATE 405

Good

Over: HILLSIDE

07-LA-405-32.72-LA, Los Angeles, CA

Built 1975 Load: 30.8 t ADT: 268,700

SAN FERNANDO RD

Good

Over: VERDUGO WA

0.1MI N/O US-101 FWY, Los Angeles, CA

Built 1939 Load: 30.8 t ADT: 37,044

GREENLEAF CYN RD

Good

Over: GREENLEAF CYN CRK

0.4MI W/O TOPANGA CYN BL, Los Angeles, CA

Built 1942 Load: 30.8 t ADT: 204

LEMON AVE

Good

Over: ARCADIA WASH

0.1MI E/O EL MONTE AVE, Los Angeles, CA

Built 1955 Load: 30.8 t ADT: 816

OAK GROVE DR

Good

Over: FLINT CYN WASH

0.3MI W/O WINDSOR AVE, Los Angeles, CA

Built 1955 Load: 30.8 t ADT: 6,347

W90-N405 CONNECTOR

Good

Over: SLAUSON AVE

07-LA-090-2.62-CLC, Los Angeles, CA

Built 1968 Load: 31.1 t ADT: 7,500

INTERSTATE 5 SB

Good

Over: LAKE HUGHES RD

07-LA-005-R59.49, Los Angeles, CA

Built 1968 Load: 31.1 t ADT: 37,177

WILLOW ST

Good

Over: LOS ANGELES RIV

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

Built 1946 Load: 31.1 t ADT: 35,638

2ND ST

Good

Over: HAYNES STEAM PLANT CH

0.9MI E/O SR-1 HWY, Los Angeles, CA

Built 1964 Load: 31.1 t ADT: 41,800

VALLEY VIEW S

Good

Over: COYOTE CRK

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

Built 1966 Load: 31.1 t ADT: 21,361

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

Related

Browse all → | Rankings →
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.