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)

GARVEY AVE N

Good

Over: WALNUT CRK

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

Built 1975 Load: 37.9 t ADT: 12,120

SYCAMORE AVE

Good

Over: PICKENS CYN CHAN

0.2MI E/O LA CRESENTA AVE, Los Angeles, CA

Built 1935 Load: 37.9 t ADT: 510

Alondra Blvd

Good

Over: North Fork Coyote Ck

0.2 W/O VALLEY VIEW AVE, Los Angeles, CA

Built 2014 Load: 37.9 t ADT: 26,400

STATE ROUTE 170

Good

Over: MAGNOLIA BLVD

07-LA-170-R15.37-LA, Los Angeles, CA

Built 1962 Load: 38.2 t ADT: 184,000

W138-S5 & N5-E138

Good

Over: QUAIL LAKE ROAD

07-LA-138-0.24L, Los Angeles, CA

Built 1967 Load: 38.2 t ADT: 4,450

RAMP/CONNECTOR 210

Good

Over: BIG DALTON WASH

07-LA-210-R41.87-GDR, Los Angeles, CA

Built 1969 Load: 38.2 t ADT: 9,500

ROUTE 105 & LRT

Good

Over: COMPTON CREEK

07-LA-105-R8.98-COM, Los Angeles, CA

Built 1988 Load: 38.2 t ADT: 220,000

SOUTH ST

Good

Over: SAN GABRIEL RIV

0.4MI W/O I-605 FWY, Los Angeles, CA

Built 1952 Load: 38.2 t ADT: 55,839

WILLOW ST

Good

Over: SAN GABRIEL RIV

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

Built 1962 Load: 38.2 t ADT: 28,620

SAN FRCSQUTO CN RD

Good

Over: SAN FRANCISQUITO CYN CRK

0.5MI S/O WAT POWER PNS, Los Angeles, CA

Built 1944 Load: 38.2 t ADT: 4,458

GLENOAKS BLVD

Good

Over: TUJUNGA WASH

0.19 MI N OF TRUESDALE, Los Angeles, CA

Built 1953 Load: 38.2 t ADT: 22,125

OAK CYN RD

Good

Over: WALNUT CRK

0.1MI S/O COVINA HILLS RD, Los Angeles, CA

Built 1963 Load: 38.2 t ADT: 101

SIERRA HWY

Good

Over: SOLEMINT OH SPTCO

0.5MI S/O SOLEDAD CYN RD, Los Angeles, CA

Built 1968 Load: 38.2 t ADT: 35,700

SR 66 (FOOTHILL)

Good

Over: THOMPSON CREEK

07-LA-066-2.40-POM, Los Angeles, CA

Built 1964 Load: 38.6 t ADT: 18,200

INTERSTATE 210

Good

Over: TERRA BELLA STREET

07-LA-210-R7.16-LA, Los Angeles, CA

Built 1980 Load: 38.6 t ADT: 113,000

SEVENTH ST

Good

Over: BNSF RY, L A RIVER, UPRR

0.3 MI W/O US 101, Los Angeles, CA

Built 1927 Load: 38.6 t ADT: 26,666

WILLIAMS AVE.

Good

Over: Live Oak Cyn. Channel

0.5MI N/O FOOTHILL BLVD, Los Angeles, CA

Built 1914 Load: 38.6 t ADT: 204

STATE ROUTE 91

Good

Over: DOMINGUEZ CHANNEL

07-LA-091-6.03-LA, Los Angeles, CA

Built 1955 Load: 38.9 t ADT: 64,000

I-5 SUP ROUTE

Good

Over: EDENHURST AVENUE

07-LA-005S-25.52-LA, Los Angeles, CA

Built 1957 Load: 38.9 t ADT: 19,000

STATE ROUTE 14

Good

Over: OAK SPRINGS RD

07-LA-014-33.94, Los Angeles, CA

Built 1963 Load: 38.9 t ADT: 101,000

E FRK RD

Good

Over: SAN GABRIEL RIV EF

3.7MI E/O SAN GABRL CN RD, Los Angeles, CA

Built 1936 Load: 38.9 t ADT: 2,020

BOUQUET CYN RD

Good

Over: SANTA CLARA RIV

0.1MI N/O SOLDAD CYN RD, Los Angeles, CA

Built 1972 Load: 38.9 t ADT: 47,494

MTN AVE

Good

Over: SAWPIT WASH

0.2MI N/O HUNTINGTON DR, Los Angeles, CA

Built 1956 Load: 38.9 t ADT: 17,582

SOUTH ST

Good

Over: PALO VERDE DRN

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

Built 1955 Load: 38.9 t ADT: 28,625

VALLEY VIEW AVE

Good

Over: LA MIRADA CRK

0.3MI N/O I-5 FWY, Los Angeles, CA

Built 1959 Load: 38.9 t ADT: 18,137

EAST RUSTIC RD

Good

Over: RUSTIC CANYON CHANNEL

0.2 M W/O CHANNEL RD, Los Angeles, CA

Built 1982 Load: 38.9 t ADT: 135

MONTE MAR DRIVE

Good

Over: BENEDICT CANYON CHANNEL

BEVERWIL DR & ROXBURY BL, Los Angeles, CA

Built 1963 Load: 38.9 t ADT: 1,046

INTERSTATE 405

Good

Over: 135TH STREET

07-LA-405-19.74-HAW, Los Angeles, CA

Built 1963 Load: 39.0 t ADT: 260,800

STATE ROUTE 22 EB

Good

Over: SAN GABRIEL RIVER

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

Built 1941 Load: 39.2 t ADT: 51,000

U.S. HIGHWAY 101

Good

Over: CHESEBRO CRK

07-LA-101-33.91-AGRH, Los Angeles, CA

Built 1949 Load: 39.2 t ADT: 160,000

STATE ROUTE 170

Good

Over: OXNARD STREET

07-LA-170-R16.63-LA, Los Angeles, CA

Built 1966 Load: 39.2 t ADT: 213,000

CAMPUS RD-WB10 ON

Good

Over: EMBANKMENT

07-LA-010-20.95-MONP, Los Angeles, CA

Built 1972 Load: 39.2 t ADT: 6,500

OLYMPIC BOULEVARD

Good

Over: BNSF RY, LA RIVER, UP RR

0.3 MI W/O SOTO STREET, Los Angeles, CA

Built 1925 Load: 39.2 t ADT: 27,728

LANCASTER RD

Good

Over: CALIFORNIA AQUEDUCT

1MI S/O AVE D, Los Angeles, CA

Built 1967 Load: 39.2 t ADT: 408

CHATSWORTH ST

Good

Over: BULL CREEK

SWINTON AVE/GOTHIC AVE, Los Angeles, CA

Built 1956 Load: 39.2 t ADT: 13,000

LA CIENEGA BLVD

Good

Over: BALLONA CREEK

WASHNTON BL/VENICE BL, Los Angeles, CA

Built 1937 Load: 39.2 t ADT: 42,792

ROSCOE BLVD

Good

Over: BULL CREEK

BTW HVNHURST AV/BALBOA BL, Los Angeles, CA

Built 1955 Load: 39.2 t ADT: 47,000

E2-N5 CONNECTOR RA

Good

Over: RIVERSIDE DR

07-LA-002-14.96-LA, Los Angeles, CA

Built 1961 Load: 39.5 t ADT: 6,900

N605-E210 CONN

Good

Over: LACMTA & BNSF RY

07-LA-605-25.55-IRW, Los Angeles, CA

Built 1970 Load: 39.5 t ADT: 36,000

GRAND AVE

Good

Over: SAN DIMAS WASH

100FT N/O ARROW HWY, Los Angeles, CA

Built 1959 Load: 39.5 t ADT: 23,056

HUNTINGTON DR W

Good

Over: ARCADIA WASH

0.2MI E/O HOLLY AVE, Los Angeles, CA

Built 1957 Load: 39.5 t ADT: 14,111

VALINDA AVE

Good

Over: PUENTE CRK

0.8MI W/O AZUSA AVE, Los Angeles, CA

Built 1974 Load: 39.5 t ADT: 18,193

RIVERSIDE DR

Good

Over: LOS ANGELES RIVER

JUST NORTH OF SR-134, Los Angeles, CA

Built 1938 Load: 39.5 t ADT: 12,650

VANOWEN ST

Good

Over: BULL CREEK

0.2 MI EAST BALBOA BLVD, Los Angeles, CA

Built 1954 Load: 39.5 t ADT: 30,207

STATE ROUTE 27

Good

Over: CALABASAS CREEK

07-LA-027-13.93-LA, Los Angeles, CA

Built 1962 Load: 39.9 t ADT: 42,000

I 5

Good

Over: 1ST STREET

07-LA-005-17.77-LA, Los Angeles, CA

Built 1959 Load: 39.9 t ADT: 243,977

SIERRA HWY

Good

Over: MINT CYN WASH

1.3MI N/O SOLEDAD CYN RD, Los Angeles, CA

Built 1986 Load: 39.9 t ADT: 14,131

TRIUNFO CYN RD

Good

Over: LOBO CRK

0.5MI W/O KANAN RD, Los Angeles, CA

Built 1951 Load: 39.9 t ADT: 1,734

WARDLOW RD

Good

Over: SAN GABRIEL RIV

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

Built 1963 Load: 39.9 t ADT: 20,570

N MAIN ST

Good

Over: LOS ANGELES RIVER

0.5 MI W/O I-5, Los Angeles, CA

Built 1910 Load: 39.9 t ADT: 30,000

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.