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)

Sort:

ENCINITA AVE

Over: EATON WASH

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

Built 1956 Load: 42.4 t ADT: 3,366

40TH ST E

Over: CALIFORNIA AQUEDUCT

0.8MI S/O SR-138 HWY, Los Angeles, CA

Built 1968 Load: 42.4 t ADT: 7,645

ELM ST

Over: ACTA

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

Built 1999 Load: 42.4 t ADT: 4,539

SOLEDAD CYN RD

Over: BEE CYN WASH

5.5MI E/O SIGMA, Los Angeles, CA

Built 2002 Load: 42.4 t ADT: 4,794

N&S5-N110 CONNECTR

Over: ARROYO SECO CHANNEL

07-LA-005-20.33-LA, Los Angeles, CA

Built 1962 Load: 42.6 t ADT: 18,500

55TH ST

Over: ACTA

E/O ALAMEDA ST, Los Angeles, CA

Built 2000 Load: 42.8 t ADT: 7,019

STATE ROUTE 60

Over: SAN GABRIEL RIVER

07-LA-060-11.30-SEMT, Los Angeles, CA

Built 1967 Load: 43.1 t ADT: 228,000

VIA CAMPESINA

Over: OLMSTED CK

1.0MI W/O PALOS VERDES DR, Los Angeles, CA

Built 1986 Load: 43.1 t ADT: 1,122

MARSHALL ST

Over: RUBIO WASH

0.3MI W/O ROSEMEAD BLVD, Los Angeles, CA

Built 1953 Load: 43.1 t ADT: 8,034

LINDLEY AVENUE

Over: LOS ANGELES RIVER

0.05 MI S. VICTORY BLVD, Los Angeles, CA

Built 1957 Load: 43.4 t ADT: 29,423

38TH/41TH ST

Over: ACTA

E/O ALAMEDA ST, Los Angeles, CA

Built 2000 Load: 43.4 t ADT: 7,182

CYPRESS PL

Over: LA DWP AQUADUCT

0.2MI E/O SECO CN ST, Los Angeles, CA

Built 1993 Load: 43.4 t ADT: 11,119

INTERSTATE 10

Over: RIO HONDO

07-LA-010-28.18-EMTE, Los Angeles, CA

Built 1956 Load: 43.5 t ADT: 211,600

INTERSTATE 210

Over: PACOIMA WASH

07-LA-210-R5.14-LA, Los Angeles, CA

Built 1975 Load: 43.7 t ADT: 121,000

VALLEY BLVD

Over: PUENTE CRK

0.4MI E/O SUNSET AVE, Los Angeles, CA

Built 1956 Load: 43.7 t ADT: 37,871

ROSECRANS AVE

Over: COMPTON CRK

0.3MI W/O WILMINGTON AVE, Los Angeles, CA

Built 1938 Load: 43.7 t ADT: 36,146

LARK ELLEN AVE

Over: LITTLE DALTON WASH

0.4MI N/O ARROW HWY, Los Angeles, CA

Built 1961 Load: 43.7 t ADT: 5,717

LEMON AVE

Over: SAWPIT WASH

250FT E/O MOUNTAIN AVE, Los Angeles, CA

Built 1964 Load: 43.7 t ADT: 3,529

WESTRIDGE RD

Over: ARROYO CANYON

210 M W/O MANDVLE CYN RD, Los Angeles, CA

Built 1928 Load: 43.7 t ADT: 4,000

FAIRWAY DR

Over: SAN JOSE CRK

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

Built 1983 Load: 43.7 t ADT: 12,647

ROUTE 5

Over: PENROSE STREET

07-LA-005-34.28-LA, Los Angeles, CA

Built 1961 Load: 44.1 t ADT: 187,358

STATE ROUTE 71

Over: SAN JOSE FC CHNL

07-LA-071-R1.04-POM, Los Angeles, CA

Built 1972 Load: 44.1 t ADT: 63,100

MISSION RD

Over: ALHAMBRA WASH

0.5MI E/O CHAPEL AVE, Los Angeles, CA

Built 1938 Load: 44.1 t ADT: 22,260

106TH ST E

Over: CALIFORNIA AQUEDUCT

0.3MI N/O SR-138 HWY, Los Angeles, CA

Built 1968 Load: 44.1 t ADT: 306

INTERSTATE 405

Over: SATICOY STREET

07-LA-405-42.87-LA, Los Angeles, CA

Built 1963 Load: 44.4 t ADT: 216,000

ROUTE 170

Over: CHANDLER BLVD UC

07-LA-170-R15.63-LA, Los Angeles, CA

Built 1966 Load: 44.4 t ADT: 209,000

SAN GABRIEL BLVD

Over: RIO HONDO

0.2MI W/O ROSEMEAD BLVD, Los Angeles, CA

Built 1982 Load: 44.4 t ADT: 25,203

DEL MAR BLVD

Over: EATON WASH

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

Built 1926 Load: 44.4 t ADT: 11,568

DEL AMO BLVD

Over: COYOTE CR

0.8MI E/O BLOOMFIELD AVE, Los Angeles, CA

Built 1965 Load: 44.4 t ADT: 20,793

WASHINGTON BLVD

Over: BALLONA CRK

200FT W/O LA CIENEGA BLVD, Los Angeles, CA

Built 1938 Load: 44.4 t ADT: 22,688

FOOTHILL BLVD

Over: SO BRCH BIG TUJUNGA WASH

1.4 MI E/O WHEATLAND AVE, Los Angeles, CA

Built 1975 Load: 44.4 t ADT: 9,697

AVE S

Over: CALIFORNIA AQUEDUCT

0.9MI W/O SR-14 FWY, Los Angeles, CA

Built 1968 Load: 44.7 t ADT: 918

GAVINA AVE

Over: PACOIMA CANYON WASH

0.1 M E/O TIBBETTS ST, Los Angeles, CA

Built 1990 Load: 44.7 t ADT: 7,500

FLAIR DR

Over: EATON WASH

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

Built 1956 Load: 45.4 t ADT: 8,240

COLUMBIA ST

Over: METRO

50FT W/O FAIR OAKS AVE, Los Angeles, CA

Built 1910 Load: 45.4 t ADT: 4,284

MAUNA LOA AVE

Over: BIG DALTON WASH

1.0MI E/O GRAND AVE, Los Angeles, CA

Built 1960 Load: 45.4 t ADT: 2,329

213TH ST E

Over: CALIFORNIA AQUEDUCT

0.3MI S/O SR-138 HWY, Los Angeles, CA

Built 1968 Load: 45.4 t ADT: 80

BALDWIN PARK BLVD

Over: WALNUT CR INLET CH

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

Built 1958 Load: 45.7 t ADT: 30,859

GLADSTONE ST

Over: LITTLE DALTON WASH

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

Built 1950 Load: 45.7 t ADT: 7,100

LONE HILL AVE

Over: SAN DIMAS WASH

0.6MI S/O US-66 HWY, Los Angeles, CA

Built 1962 Load: 45.7 t ADT: 37,389

PRAIRIE AVE

Over: BNSF

0.5MI S/O 190TH ST, Los Angeles, CA

Built 1975 Load: 45.7 t ADT: 52,000

BARRANCA AVE N

Over: BIG DALTON WASH

0.1MI N/O GLADESTONE ST, Los Angeles, CA

Built 1960 Load: 46.0 t ADT: 20,785

ELM AND MUSCATEL

Over: EATON WASH

0.1MI N/O LAS TUNAS DR, Los Angeles, CA

Built 1933 Load: 46.0 t ADT: 7,166

VENICE BLVD

Over: GRAND CANAL

0.2 KM EAST OF PACIFIC, Los Angeles, CA

Built 1991 Load: 46.0 t ADT: 9,221

GLADSTONE ST

Over: SAN DIMAS WASH

1.5MI E/O GRAND AVE, Los Angeles, CA

Built 1967 Load: 46.3 t ADT: 16,295

GLENDORA AVE

Over: BIG DALTON WASH

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

Built 1960 Load: 46.7 t ADT: 18,334

FULLERTON RD

Over: SAN JOSE CRK

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

Built 1991 Load: 46.7 t ADT: 9,719

25TH ST W

Over: AMARGOSA CRK

250FT N/O ELIZ LAKE RD, Los Angeles, CA

Built 2000 Load: 46.7 t ADT: 13,260

ALONDRA BLVD

Over: SAN GABRIEL RIV

0.3MI W/O I-605 FWY, Los Angeles, CA

Built 1952 Load: 47.0 t ADT: 27,192

VANOWEN ST

Over: S FORK BELL CREEK

0.2 M E/O PLATT AVE, Los Angeles, CA

Built 1958 Load: 47.0 t ADT: 34,709

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 7, 2026