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)

WOODLAND DR

Good

Over: SIERRA MADRE WASH

1.5MI N/O I-10 FWY, Los Angeles, CA

Built 1928 Load: 18.5 t ADT: 116

LAS ROCAS DR

Good

Over: SIERRA MADRE WASH

0.6MI W/O SANTA ANITA AVE, Los Angeles, CA

Built 1928 Load: 18.5 t ADT: 378

E10-S57&N57 CONN

Good

Over: KELLOGG DR

07-LA-010-42.10-POM, Los Angeles, CA

Built 1972 Load: 18.8 t ADT: 8,200

STATE ROUTE 2

Good

Over: FERN CANYON

07-LA-002-29.55, Los Angeles, CA

Built 1931 Load: 19.1 t ADT: 3,700

ATLANTIC TO N71O

Good

Over: LOS ANGELES RIVER

07-LA-710-13.09-LBCH, Los Angeles, CA

Built 1971 Load: 19.1 t ADT: 5,250

GENEVA ST

Good

Over: VERDUGO WASH

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

Built 1938 Load: 19.4 t ADT: 5,356

MARMION WAY

Good

Over: ARROYO SECO CHANNEL

AT SR 110, Los Angeles, CA

Built 1940 Load: 19.4 t ADT: 570

SUNSWEPT DRIVE

Good

Over: HILLSIDE

0.2 MI SW OF VANETTA DR, Los Angeles, CA

Built 1997 Load: 19.4 t ADT: 675

FLORENCE AVE

Good

Over: SAN GABRIEL RIV

0.2MI W/O I-605 FWY, Los Angeles, CA

Built 1951 Load: 19.8 t ADT: 37,078

NORTH BROADWAY

Good

Over: HILLSIDE NORTH BROADWAY

1.0 MI N OF U.S.-101, Los Angeles, CA

Built 1929 Load: 19.8 t ADT: 23,420

CHATEAU RD

Good

Over: UNNAMED WASH

0.2MI N/O US-101 FWY, Los Angeles, CA

Built 1940 Load: 19.8 t ADT: 510

U.S. HIGHWAY 101

Good

Over: VENDOME STREET

07-LA-101-3.63-LA, Los Angeles, CA

Built 1949 Load: 20.1 t ADT: 265,000

SOLEDAD CYN RD

Good

Over: NELSON CYN WASH

3MI E/O AGUA DULCE CYN RD, Los Angeles, CA

Built 1949 Load: 20.1 t ADT: 2,550

BROOKTREE ROAD

Good

Over: RUSTIC CANYON CHANNEL

BWEEN RANCH LN & HIGHTREE, Los Angeles, CA

Built 1996 Load: 20.1 t ADT: 300

INTERSTATE 405

Good

Over: MONTANA AVE

07-LA-405-32.50-LA, Los Angeles, CA

Built 1956 Load: 20.4 t ADT: 283,000

INTERSTATE 710

Good

Over: DEL AMO BLVD

07-LA-710-10.82-LBCH, Los Angeles, CA

Built 1953 Load: 20.4 t ADT: 190,000

STATE ROUTE 91

Good

Over: BIXBY AVE

07-LA-091-R15.87-BFL, Los Angeles, CA

Built 1968 Load: 20.4 t ADT: 242,000

INTERSTATE 605 SB

Good

Over: SANTA FE FLOOD BASIN

07-LA-605-25.09-IRW, Los Angeles, CA

Built 1970 Load: 20.4 t ADT: 67,000

EVERGREEN AVE

Good

Over: SAWPIT WASH

0.2MI W/O MOUNTAIN AVE, Los Angeles, CA

Built 1968 Load: 20.4 t ADT: 14,139

SOLEDAD CYN RD

Good

Over: INDIAN CYN CRK

0.4MI E/O AGUA DULCE CYN, Los Angeles, CA

Built 1946 Load: 20.7 t ADT: 1,204

STATE ROUTE 2

Good

Over: SLIDE CANYON

07-LA-002-28.58-PAS, Los Angeles, CA

Built 1931 Load: 21.1 t ADT: 3,700

STATE ROUTE 39

Good

Over: SAN GABRIEL RIVER

07-LA-039-17.82, Los Angeles, CA

Built 1933 Load: 21.1 t ADT: 2,350

INTERSTATE 5 SB

Good

Over: TEMPLIN HWY

07-LA-005-R65.97, Los Angeles, CA

Built 1967 Load: 21.1 t ADT: 36,843

INTERSTATE 5 NB

Good

Over: TEMPLIN HWY

07-LA-005-R65.97, Los Angeles, CA

Built 1967 Load: 21.1 t ADT: 36,843

STATE ROUTE 22 WB

Good

Over: SAN GABRIEL RIVER

07-LA-022-1.42-LBCH, Los Angeles, CA

Built 1959 Load: 21.4 t ADT: 51,000

S5TRK-SIERRA HWY

Good

Over: METROLINK&UP RR TUNNEL#5

07-LA-005S-C45.76, Los Angeles, CA

Built 1971 Load: 21.4 t ADT: 224

STATE ROUTE 210

Good

Over: LACMTA & BNSF RY

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

Built 1970 Load: 21.4 t ADT: 191,000

KAGEL CYN RD

Good

Over: KAGEL CYN CRK

2.5MI N/O FOOTHILL BLVD, Los Angeles, CA

Built 1952 Load: 21.4 t ADT: 1,632

BOWDOIN ST

Good

Over: PEDESTRIAN WALKWAY

0.1 M W/O TEMESCAL CYN RD, Los Angeles, CA

Built 1961 Load: 21.4 t ADT: 975

STATE ROUTE 57

Good

Over: COLD SPRING LANE

07-LA-057-R2.52-DMBR, Los Angeles, CA

Built 1972 Load: 21.7 t ADT: 198,000

MRTN L KING JR AVE

Good

Over: SPTCO

0.7MI N/O SR-1 HWY, Los Angeles, CA

Built 1957 Load: 21.7 t ADT: 6,695

BEL AIR RD

Good

Over: UNNAMED CREEK

SUNSET BL & ST PIERRE RD, Los Angeles, CA

Built 1923 Load: 21.7 t ADT: 4,750

SR 138 (PEARBLSSM)

Good

Over: LITTLE ROCK CREEK

07-LA-138-53.55, Los Angeles, CA

Built 1952 Load: 22.4 t ADT: 8,600

INTERSTATE 210

Good

Over: SUNFLOWER AVENUE

07-LA-210-R43.16-GDR, Los Angeles, CA

Built 1970 Load: 22.4 t ADT: 257,000

STATE ROUTE 39

Good

Over: N FORK SAN GABRIEL RIVER

07-LA-039-R31.25, Los Angeles, CA

Built 1967 Load: 22.4 t ADT: 830

ROSCOE BLVD

Good

Over: ALISO CREEK

0.1 MI W/O WILBUR AVE., Los Angeles, CA

Built 1955 Load: 22.7 t ADT: 35,929

VAL VISTA ST

Good

Over: SAN JOSE CRK

0.1MI N/O I-10 FWY, Los Angeles, CA

Built 1964 Load: 22.7 t ADT: 2,538

STATE ROUTE 27

Good

Over: BELL CREEK

07-LA-027-14.27-LA, Los Angeles, CA

Built 1949 Load: 23.0 t ADT: 42,000

SAN GABRIEL BLVD

Good

Over: ALHAMBRA WASH

100FT S/O GARVEY AVE, Los Angeles, CA

Built 1935 Load: 23.0 t ADT: 24,637

AVENUE 43

Good

Over: ARROYO SECO CHANNEL

AT SR 110, Los Angeles, CA

Built 1939 Load: 23.0 t ADT: 4,001

STATE ROUTE 91

Good

Over: ORANGE AVE

07-LA-091-R12.59-LBCH, Los Angeles, CA

Built 1970 Load: 23.3 t ADT: 260,000

ROSEMEAD BLVD

Good

Over: EATON WASH

0.1MI S/O BROADWAY, Los Angeles, CA

Built 1937 Load: 23.3 t ADT: 50,760

STATE ROUTE 2

Good

Over: HILLSIDE

07-LA-002-29.08-PAS, Los Angeles, CA

Built 1931 Load: 23.7 t ADT: 3,700

STATE ROUTE 39

Good

Over: CHAPMAN CANYON

07-LA-039-18.36, Los Angeles, CA

Built 1934 Load: 23.7 t ADT: 2,350

AVENUE 52

Good

Over: ARROYO SECO

0.1 MI SOUTH OF SR 110, Los Angeles, CA

Built 1940 Load: 23.7 t ADT: 5,370

HEATHFIELD DR

Good

Over: LA MIRADA CRK

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

Built 1955 Load: 23.7 t ADT: 202

INTERSTATE 405

Good

Over: DOMINGUEZ CHANNEL

07-LA-405-9.76-CRSN, Los Angeles, CA

Built 1962 Load: 24.0 t ADT: 237,800

N57-I10 CONNECTOR

Good

Over: SAN JOSE FLD CNTRL CHNNL

07-LA-057-R7.33-POM, Los Angeles, CA

Built 1972 Load: 24.0 t ADT: 30,000

RIVERSIDE DR

Good

Over: BURBANK WESTERN CHAN

0.8MI W/O I-5 FWY, Los Angeles, CA

Built 1940 Load: 24.0 t ADT: 6,592

SATICOY ST

Good

Over: ALISO CREEK

0.44MI W/O RESEDA BLVD, Los Angeles, CA

Built 1954 Load: 24.2 t ADT: 29,369

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.