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)

AMHERST ST

Fair

Over: LIVE OAK WASH

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

Built 1977 Load: 54.8 t ADT: 204

INTERSTATE 5

Fair

Over: EUCLID AVE

07-LA-005-16.05-LA, Los Angeles, CA

Built 1948 Load: 55.3 t ADT: 258,000

I-5 SB

Fair

Over: HOLLENBECK LAKE,BOYLE AV

07-LA-005-17.21-LA, Los Angeles, CA

Built 1961 Load: 55.3 t ADT: 117,000

SECOND AVE

Fair

Over: SANTA ANITA WASH

AT COLORADO BLVD, Los Angeles, CA

Built 1968 Load: 55.4 t ADT: 8,446

PEARBLOSSOM HWY

Fair

Over: CALIFORNIA AQUEDUCT

1.0MI N/O SIERRA HWY, Los Angeles, CA

Built 1968 Load: 55.4 t ADT: 40,280

U.S. HIGHWAY 101

Fair

Over: NORMANDIE AVE

07-LA-101-4.99-LA, Los Angeles, CA

Built 1950 Load: 56.1 t ADT: 175,000

118TH ST

Fair

Over: COMPTON CRK

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

Built 1984 Load: 56.1 t ADT: 2,263

DE SOTO AVE

Fair

Over: BROWNS CANYON WASH

0.3 MI S PARTHENIA ST, Los Angeles, CA

Built 1972 Load: 56.1 t ADT: 53,273

THOUSAND OAKS BL

Fair

Over: MEDEA CRK

0.1MI W/O KANAN RD, Los Angeles, CA

Built 1982 Load: 56.1 t ADT: 14,163

SUNFLOWER AVE

Fair

Over: SAN DIMAS WASH

100FT N/O GLADSTONE ST, Los Angeles, CA

Built 1969 Load: 56.4 t ADT: 14,759

FOURTH ST

Fair

Over: UPRR

50FT S/O MISSION RD, Los Angeles, CA

Built 1979 Load: 56.4 t ADT: 5,050

INTERSTATE 210

Fair

Over: FIRST STREET

07-LA-210-R39.36-AZU, Los Angeles, CA

Built 1968 Load: 56.7 t ADT: 250,000

ALISO CYN RD

Fair

Over: ALISO CYN CRK

2.1MI W/O ANGLS FOR HWY, Los Angeles, CA

Built 2000 Load: 56.7 t ADT: 1,273

U.S. HIGHWAY 101

Fair

Over: FALLBROOK AVE

07-LA-101-26.45-LA, Los Angeles, CA

Built 1957 Load: 57.3 t ADT: 202,000

26TH ST

Fair

Over: ATLANTIC BOULEVARD

0.2MI E/O BANDINI BLVD, Los Angeles, CA

Built 2008 Load: 57.3 t ADT: 24,960

MARQUARDT AVE

Fair

Over: COYOTE CR

0.2MI S/O 183RD ST, Los Angeles, CA

Built 1965 Load: 57.7 t ADT: 15,963

N5-N110 CONNECTOR

Fair

Over: AVENUE 26

07-LA-005-20.32-LA, Los Angeles, CA

Built 1962 Load: 58.0 t ADT: 16,830

SAN FERNANDO RD

Fair

Over: PACOIMA WASH

0.5 MI NW PAXTON ST, Los Angeles, CA

Built 1925 Load: 58.0 t ADT: 15,000

BENZ RD

Fair

Over: BOUQUET CYN CHAN

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

Built 1978 Load: 59.3 t ADT: 1,108

TEMPLE AVE

Fair

Over: PUENTE CRK

0.8MI N/O VALLEY BLVD, Los Angeles, CA

Built 1955 Load: 59.6 t ADT: 30,150

INTERSTATE 5

Fair

Over: PAXTON STREET

07-LA-005-39.05-LA, Los Angeles, CA

Built 1963 Load: 60.9 t ADT: 275,000

STATE ROUTE 1

Fair

Over: TEXACO OH

07-LA-001-8.69-LA, Los Angeles, CA

Built 1967 Load: 60.9 t ADT: 33,000

INTERSTATE 210

Fair

Over: NEW YORK AVE

07-LA-210-R16.47-GNDL, Los Angeles, CA

Built 1972 Load: 61.2 t ADT: 166,000

SIXTH ST

Fair

Over: UPRR

50FT S/O MISSION RD, Los Angeles, CA

Built 1979 Load: 61.9 t ADT: 8,778

E2-E210 CONNECTOR

Fair

Over: VERDUGO BLVD

07-LA-002-R23.00-GNDL, Los Angeles, CA

Built 1972 Load: 62.2 t ADT: 8,900

STATE ROUTE 14

Fair

Over: 10TH STREET WEST

07-LA-014-R61.77-PMDL, Los Angeles, CA

Built 1972 Load: 62.5 t ADT: 44,500

CHAPEL AVE

Fair

Over: UPRR

UPRR, Los Angeles, CA

Built 1979 Load: 64.2 t ADT: 13,866

E210-W2 CONNECTOR

Fair

Over: VERDUGO BLVD

07-LA-210-R18.78-GNDL, Los Angeles, CA

Built 1972 Load: 64.8 t ADT: 26,100

JACKSON ST

Fair

Over: VERDUGO WASH

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

Built 1969 Load: 66.4 t ADT: 5,253

NORTH BROADWAY

Fair

Over: LA RIV,BNSF,UPRR,METRO,

0.3 MI WEST INTERSTATE 5, Los Angeles, CA

Built 1909 Load: 66.7 t ADT: 23,648

INTERSTATE 210

Fair

Over: FLINT CANYON WASH

07-LA-210-R21.84-PAS, Los Angeles, CA

Built 1974 Load: 68.4 t ADT: 113,000

RAILROAD AVENUE

Fair

Over: NEWHALL CREEK

789 FT N/O LYONS AVE, Los Angeles, CA

Built 1996 Load: 71.3 t ADT: 37,000

YORK BLVD

Fair

Over: ARROYO SECO CHANNEL

AT SR 110, Los Angeles, CA

Built 1912 Load: 72.3 t ADT: 26,327

INTERSTATE 210

Fair

Over: KINNELOA AVE

07-LA-210-R29.02-PAS, Los Angeles, CA

Built 1976 Load: 73.4 t ADT: 269,000

SIERRA MADRE BLVD

Fair

Over: SIERRA MADRE WASH

0.2MI W/O SANTA ANITA AVE, Los Angeles, CA

Built 1953 Load: 73.5 t ADT: 4,896

E FRK RD

Fair

Over: SUSANA CYN CRK

2.2MI E/O SAN G CYN RD, Los Angeles, CA

Built 1942 Load: 81.3 t ADT: 2,000

JEFFERSON BLVD

Fair

Over: CENTINELA CREEK

0.2 MI N OF I-405, Los Angeles, CA

Built 1962 Load: 81.3 t ADT: 39,900

RALPHS RANCH RD.

Fair

Over: UNNAMED WASH

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

Built 1970 Load: 84.2 t ADT: 1,530

MOOR PARK ST

Fair

Over: WEST BRANCH TUJUNGA WASH

RADFORD AVE & GENTRY AV, Los Angeles, CA

Built 1951 Load: 86.2 t ADT: 25,300

MESMER AVE

Fair

Over: CENTINELA CREEK

500FT N/O JEFFERSON BLVD, Los Angeles, CA

Built 1962 Load: 92.7 t ADT: 3,000

COLUMBIA WAY

Fair

Over: UNNAMED WASH

200FT E/O SIERRA HWY, Los Angeles, CA

Built 1950 Load: 99.8 t ADT: 18,616

NORDOFF ST

Fair

Over: BROWN CANYON WASH

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

Built 1971 Load: 99.8 t ADT: 25,975

PARTHENIA ST

Fair

Over: BROWNS CANYON WASH

0.48 KM E/O CANOGA AVE, Los Angeles, CA

Built 1972 Load: 99.8 t ADT: 8,727

SAN DIMAS AVE

Fair

Over: WALNUT CRK

0.5MI E/O I-210 FWY, Los Angeles, CA

Built 1979 Load: 99.8 t ADT: 7,519

ALISO CN RD N/XING

Fair

Over: ALISO CYN CRK

1.4MI W/O ANGELES FOR HWY, Los Angeles, CA

Built 1978 Load: 99.8 t ADT: 1,273

TUMBLEWEED RD

Fair

Over: CRUTHERS CRK

0.3MI E/O LONGVIEW RD, Los Angeles, CA

Built 1956 Load: 99.8 t ADT: 459

KANAN DUME RD

Fair

Over: NEWTON CYN

4.4MI N/O SR-1 HWY, Los Angeles, CA

Built 1960 Load: 99.8 t ADT: 12,669

LANCASTER RD

Fair

Over: UNNAMED WASH

AT 190TH ST W, Los Angeles, CA

Built 1976 Load: 99.8 t ADT: 408

INTERSTATE 710

Fair

Over: DRAIN

07-LA-710-R27.02-MONP, Los Angeles, CA

Built 1965 Load: 99.9 t ADT: 45,500

ROAD

Good

Over: DALTON CANYON

NO DATA ENTERED, Los Angeles, CA

Built 1940 ADT: 10

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.