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)

WALNUT GROVE AVE

Poor

Over: ALHAMBRA WASH

0.8MI N/O SR-60 FWY, Los Angeles, CA

Built 1937 Load: 35.3 t ADT: 17,934

PUENTE AVE

Poor

Over: BIG DALTON WASH

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

Built 1959 Load: 35.6 t ADT: 2,137

DUARTE RD

Poor

Over: EATON WASH

0.5MI E/O SN GABRIEL BLVD, Los Angeles, CA

Built 1989 Load: 36.9 t ADT: 12,063

CENTRALIA ST

Poor

Over: COYOTE CRK

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

Built 1955 Load: 37.3 t ADT: 12,000

LONGDEN AVE

Poor

Over: SANTA ANITA WASH

0.8MI E/O SANTA ANITA AVE, Los Angeles, CA

Built 1959 Load: 37.3 t ADT: 6,901

AZUSA AVE

Poor

Over: BIG DALTON WASH

0.1MI S/O ARROW HWY, Los Angeles, CA

Built 1941 Load: 37.3 t ADT: 35,490

SLAUSON AVE

Poor

Over: LOS ANGELES RIV

0.8MI E/O ATLANTIC BLVD, Los Angeles, CA

Built 1942 Load: 38.2 t ADT: 34,736

STIMSON AVE

Poor

Over: SAN JOSE CRK

E/O HACIENDA BLVD, Los Angeles, CA

Built 1967 Load: 38.9 t ADT: 18,869

EL SEGUNDO BLVD

Poor

Over: ACTA

25FT E/O ALAMEDA ST, Los Angeles, CA

Built 2000 Load: 40.5 t ADT: 11,268

STATE ROUTE 134

Poor

Over: PACIFIC AVE

07-LA-134-R6.57-GNDL, Los Angeles, CA

Built 1967 Load: 41.1 t ADT: 240,000

SEVENTH AVE

Poor

Over: SAN JOSE CRK CHAN

0.4MI N/O SR-60 FWY, Los Angeles, CA

Built 1967 Load: 41.1 t ADT: 26,484

PARRIOT PL

Poor

Over: SAN JOSE CRK

100FT W/O HACIENDA BLVD, Los Angeles, CA

Built 1964 Load: 41.1 t ADT: 2,244

SAN GABRIEL RIV PK

Poor

Over: SAN GABRIEL RIV PKWAY

0.6MI N/O BEVERLY BLVD, Los Angeles, CA

Built 1954 Load: 41.5 t ADT: 11,088

124TH ST

Poor

Over: ACTA

50FT E/O ALAMEDA ST, Los Angeles, CA

Built 2000 Load: 41.5 t ADT: 2,336

GARFIELD AVE

Poor

Over: UPRR

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

Built 1979 Load: 41.8 t ADT: 34,511

INTERSTATE 710

Poor

Over: LOS ANGELES RIVER

07-LA-710-17.34-SGT, Los Angeles, CA

Built 1955 Load: 42.1 t ADT: 220,000

25TH ST

Poor

Over: ACTA

0.2MI E/O ALAMEDA ST, Los Angeles, CA

Built 2001 Load: 42.4 t ADT: 7,419

ALAMEDA ST

Poor

Over: COMPTON CRK

0.1MI S/O ARTESIA BLVD, Los Angeles, CA

Built 1937 Load: 42.8 t ADT: 10,710

DOWNEY RD

Poor

Over: LOS ANGELES RIV

0.8MI E/O SOTO ST, Los Angeles, CA

Built 1931 Load: 43.1 t ADT: 25,265

NELSON AVE

Poor

Over: PUENTE CRK

0.5MI S/O SUNSET AVE, Los Angeles, CA

Built 1955 Load: 44.7 t ADT: 9,308

VALLEY BLVD

Poor

Over: EATON WASH

1.0MI E/O ROSEMEAD BLVD, Los Angeles, CA

Built 1956 Load: 45.7 t ADT: 26,536

ACCESS RD CITY YDS

Poor

Over: ALHAMBRA WASH

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

Built 1969 Load: 46.7 t ADT: 505

U.S. HIGHWAY 101

Poor

Over: LOS ANGELES RIVER

07-LA-101-10.83-LA, Los Angeles, CA

Built 1957 Load: 47.0 t ADT: 175,000

WATER ST

Poor

Over: SAN JOSE CR

0.6MI N/O SR-60 FWY, Los Angeles, CA

Built 1967 Load: 49.6 t ADT: 184

PEARBLOSSOM HWY

Poor

Over: SPRR

2.0MI N/O SR-14 FWY, Los Angeles, CA

Built 1959 Load: 52.2 t ADT: 40,280

AVE S E

Poor

Over: RR

2MI E/O SIERRA HWY, Los Angeles, CA

Built 2007 Load: 52.5 t ADT: 28,154

NOGALES ST

Poor

Over: SAN JOSE CRK

0.1MI S/O VALLEY BLVD, Los Angeles, CA

Built 1968 Load: 53.8 t ADT: 40,898

ATLANTIC BLVD

Poor

Over: UPRR

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

Built 1979 Load: 56.7 t ADT: 35,177

AVE S W

Poor

Over: RR

2MI E/O SIERRA HWY, Los Angeles, CA

Built 2007 Load: 59.6 t ADT: 28,154

INTERSTATE 210

Poor

Over: BIG TUJUNGA WASH

07-LA-210-R9.89-LA, Los Angeles, CA

Built 1980 Load: 61.2 t ADT: 113,000

FREMONT AVE

Poor

Over: UPRR

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

Built 1979 Load: 63.5 t ADT: 51,262

MARENGO AVE

Poor

Over: UPRR

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

Built 1979 Load: 67.1 t ADT: 14,009

CIRCLE TRAIL

Structurally Deficient

Over: TOPANGA CYN CRK

25FT W/O TOPANGA CYN BLVD, Los Angeles, CA

Built 1936 Load: 6.2 t ADT: 204

WILMINGTON AVE

Structurally Deficient

Over: COMPTON CRK

0.5MI S/O ROSECRANS AVE, Los Angeles, CA

Built 1938 Load: 12.6 t ADT: 29,520

SOLEDAD CYN RD

Structurally Deficient

Over: LACMTA AND SCRRA TRACK

0.1MI E/O AGUA DULCE CYN, Los Angeles, CA

Built 1938 Load: 16.2 t ADT: 3,162

COMPTON BLVD

Structurally Deficient

Over: COMPTON CRK

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

Built 1938 Load: 17.8 t ADT: 27,136

STATE ROUTE 1

Structurally Deficient

Over: TRANCAS CREEK

07-LA-001-56.71, Los Angeles, CA

Built 1927 Load: 27.5 t ADT: 17,100

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