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)

VERMONT AVE

Good

Over: VERMONT AVE OH ATSF RR

0.4MI S/O SEPULVEDA BLVD, Los Angeles, CA

Built 1970 Load: 31.1 t ADT: 29,610

DAINES DR

Good

Over: ARCADIA WASH

0.4MI W/O SANTA ANITA AVE, Los Angeles, CA

Built 1955 Load: 31.1 t ADT: 1,122

170TH ST W

Good

Over: CALIFORNIA AQUEDUCT

0.8MI S/O LANCASTER RD, Los Angeles, CA

Built 1967 Load: 31.1 t ADT: 101

DECORO DR

Good

Over: DRY CYN CHAN

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

Built 1970 Load: 31.1 t ADT: 12,011

FOOTHILL BLVD

Good

Over: PICKENS CYN CHAN

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

Built 1935 Load: 31.1 t ADT: 1,482

W134-E2 CONNECTOR

Good

Over: HOLLY DR

07-LA-134-R9.04-GNDL, Los Angeles, CA

Built 1978 Load: 31.4 t ADT: 3,850

VINCENT AVE

Good

Over: WALNUT CRK

0.3MI S/O I-10 FWY, Los Angeles, CA

Built 1960 Load: 31.4 t ADT: 30,995

WISTARIA AVE

Good

Over: ARCADIA WASH

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

Built 1955 Load: 31.4 t ADT: 816

WEBER ST

Good

Over: SAN JOSE CRK

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

Built 1964 Load: 31.4 t ADT: 1,530

ATLANTIC-S710 ONRP

Good

Over: LA JUNCTION RY

07-LA-710-21.79-BELL, Los Angeles, CA

Built 1957 Load: 31.8 t ADT: 1,100

STATE ROUTE 14 NB

Good

Over: PURITAN MINE ROAD

07-LA-014-45.73, Los Angeles, CA

Built 1963 Load: 31.8 t ADT: 48,500

INTERSTATE 5 SB

Good

Over: QUAIL LAKE RD

07-LA-005-R81.76, Los Angeles, CA

Built 1967 Load: 31.8 t ADT: 35,890

INTERSTATE 210

Good

Over: ARROYO STREET

07-LA-210-R5.46-LA, Los Angeles, CA

Built 1975 Load: 31.8 t ADT: 121,000

SOLEDAD CYN RD

Good

Over: SPRING CYN WASH

0.1MI E/O SR-14 FWY, Los Angeles, CA

Built 1948 Load: 31.8 t ADT: 4,811

SIERRA MDR BLVD W

Good

Over: EATON WASH

0.5MI W/O SIERRA MADRE VL, Los Angeles, CA

Built 1958 Load: 31.8 t ADT: 7,604

PARTHENIA ST

Good

Over: ALISO CREEK

0.57MI W/O RESEDA BLVD, Los Angeles, CA

Built 1955 Load: 31.8 t ADT: 34,493

INTERSTATE 5

Good

Over: QUAIL LAKE RD

07-LA-005-R81.76, Los Angeles, CA

Built 1967 Load: 32.1 t ADT: 35,890

SR 118 EB

Good

Over: LAUREL CANYON BLVD

07-LA-118-R11.57R-LA, Los Angeles, CA

Built 1976 Load: 32.1 t ADT: 66,750

LONGDEN AVE

Good

Over: ARCADIA WASH

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

Built 1955 Load: 32.1 t ADT: 5,768

DEL VALLE ST

Good

Over: PUENTE CR

0.1MI S/O AMAR RD, Los Angeles, CA

Built 1970 Load: 32.1 t ADT: 3,579

SAN PASCUAL AVE BR

Good

Over: ARROYO SECO CHANNEL

RAMON DR & GOLD PLACE, Los Angeles, CA

Built 1939 Load: 32.1 t ADT: 15,900

U.S. HIGHWAY 101

Good

Over: LAS VIRGENES CREEK

07-LA-101-31.37, Los Angeles, CA

Built 1973 Load: 32.4 t ADT: 167,000

STATE ROUTE 1

Good

Over: SOLSTICE CANYON CREEK

07-LA-001-50.36, Los Angeles, CA

Built 1947 Load: 32.4 t ADT: 29,750

U.S. HIGHWAY 101

Good

Over: DRY CANYON CREEK

07-LA-101-27.14-LA, Los Angeles, CA

Built 1957 Load: 32.4 t ADT: 208,000

STATE ROUTE 138

Good

Over: LITTLE ROCK CREEK

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

Built 1995 Load: 32.4 t ADT: 8,600

STATE ROUTE 71

Good

Over: UP RR, AMTRAK, METROLINK

07-LA-071-1.31-POM, Los Angeles, CA

Built 1926 Load: 32.4 t ADT: 91,000

STATE ROUTE 1

Good

Over: PIPE LINE UC

07-LA-001-8.72-LA, Los Angeles, CA

Built 1934 Load: 32.4 t ADT: 33,000

INTERSTATE 405

Good

Over: CASPIAN AVE STORM DRAIN

07-LA-405-7.95-LBCH, Los Angeles, CA

Built 1961 Load: 32.4 t ADT: 285,000

SANTA FE BLD-S405

Good

Over: CASPIAN AVE STORM DRAIN

07-LA-405-7.95-LBCH, Los Angeles, CA

Built 1961 Load: 32.4 t ADT: 25,000

US 101

Good

Over: L A RI,RR,CENTER,MISSION

07-LA-101-0.08-LA, Los Angeles, CA

Built 1944 Load: 32.4 t ADT: 137,000

STATE ROUTE 71

Good

Over: 9TH ST STORM DRAIN (N)

07-LA-071-1.90-POM, Los Angeles, CA

Built 1958 Load: 32.4 t ADT: 72,000

STATE ROUTE 71

Good

Over: 9TH ST STORM DRAIN (S)

07-LA-071-1.92-POM, Los Angeles, CA

Built 1958 Load: 32.4 t ADT: 72,000

W10 BUSWAY

Good

Over: EATON WASH

07-LA-010S-27.84-EMTE, Los Angeles, CA

Built 1972 Load: 32.4 t ADT: 500

INTERSTATE 405

Good

Over: CHURCH LANE

07-LA-405-33.20-LA, Los Angeles, CA

Built 1955 Load: 32.4 t ADT: 274,000

ROUTE 2

Good

Over: SAN FERNANDO RD

07-LA-002-16.02-LA, Los Angeles, CA

Built 1958 Load: 32.4 t ADT: 153,000

US 101

Good

Over: KENMORE AVE SD

07-LA-101-4.73-LA, Los Angeles, CA

Built 1950 Load: 32.4 t ADT: 154,000

U.S. HIGHWAY 101

Good

Over: IVAR AVE

07-LA-101-7.31-LA, Los Angeles, CA

Built 1953 Load: 32.4 t ADT: 154,000

INTERSTATE 710

Good

Over: COMPTON CREEK

07-LA-710-10.59-LBCH, Los Angeles, CA

Built 1953 Load: 32.4 t ADT: 186,000

INTERSTATE 710

Good

Over: ATLANTIC AVE

07-LA-710-13.62-COM, Los Angeles, CA

Built 1954 Load: 32.4 t ADT: 230,000

INTERSTATE 10

Good

Over: PARK AVENUE

07-LA-010-45.55-POM, Los Angeles, CA

Built 1954 Load: 32.4 t ADT: 247,000

STATE ROUTE 110

Good

Over: 12TH STREET

07-LA-110-21.88-LA, Los Angeles, CA

Built 1953 Load: 32.4 t ADT: 270,000

INTERSTATE 110

Good

Over: 37TH STREET

07-LA-110-19.93-LA, Los Angeles, CA

Built 1996 Load: 32.4 t ADT: 300,000

INTERSTATE 110

Good

Over: PEDESTRIAN WALKWAY

07-LA-110-15.07-LA, Los Angeles, CA

Built 1958 Load: 32.4 t ADT: 244,000

INTERSTATE 10

Good

Over: SAN JOSE WASH

07-LA-010-44.89-POM, Los Angeles, CA

Built 1954 Load: 32.4 t ADT: 247,000

STATE ROUTE 134 EB

Good

Over: MONTE BONITO DR

07-LA-134-R11.33-LA, Los Angeles, CA

Built 1955 Load: 32.4 t ADT: 110,000

STATE ROUTE 2

Good

Over: DELAY DRIVE OH

07-LA-002-16.12-LA, Los Angeles, CA

Built 1958 Load: 32.4 t ADT: 153,000

INTERSTATE 5

Good

Over: LEMORAN AVE STORM DRAIN

07-LA-005-7.87-DNY, Los Angeles, CA

Built 1953 Load: 32.4 t ADT: 234,600

INTERSTATE 5

Good

Over: ALAMEDA AVE

07-LA-005-28.43-BRB, Los Angeles, CA

Built 1957 Load: 32.4 t ADT: 254,684

S5-ALAMEDA AVE-S5

Good

Over: ALAMEDA AVE

07-LA-005-28.43-BRB, Los Angeles, CA

Built 1957 Load: 32.4 t ADT: 7,805

N5-ALAMEDA AVE-N5

Good

Over: ALAMEDA AVE

07-LA-005-28.43-BRB, Los Angeles, CA

Built 1957 Load: 32.4 t ADT: 8,010

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