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)

Metro Gold Line

Unknown

Over: MICHILLINDA AVE

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

Built 1971 ADT: 21,600

METROLINK

Unknown

Over: ATLANTIC BLVD UP

AT I-10 FWY, Los Angeles, CA

Built 1953 ADT: 43,993

SP/UP RR

Unknown

Over: SIERRA HWY

1.0MI S/O PALMDALE BLVD, Los Angeles, CA

Built 1967 ADT: 7,242

SPTCO

Unknown

Over: GAREY AVE UNDER SPTCO

0.3MI S/O HOLT AVE, Los Angeles, CA

Built 1963 ADT: 20,432

FIRST ST

Unknown

Over: GAREY AVE

0.3MI S/O HOLT AVE, Los Angeles, CA

Built 1963 ADT: 20,432

FOURTH ST

Unknown

Over: LORENA ST & BERNAL AVE

AT LORENA ST, Los Angeles, CA

Built 1928 ADT: 3,723

AVENUE OF THE STAR

Unknown

Over: OLYMPIC BLVD

AT OLYMPIC BLVD, Los Angeles, CA

Built 1963 ADT: 60,144

METRO

Unknown

Over: HILL AVE

0.2MI N/O WALNUT AVE, Los Angeles, CA

Built 1972 ADT: 26,463

METRO

Unknown

Over: SIERRA BONITA AVE

0.2MI N/O WALNUT AVE, Los Angeles, CA

Built 1972 ADT: 785

METRO

Unknown

Over: ALLEN AVE

0.1MI N/O FOOTHILL BLVD, Los Angeles, CA

Built 1976 ADT: 21,834

METRO

Unknown

Over: CRAIG AVE

0.2MI N/O FOOTHILL BLVD, Los Angeles, CA

Built 1976 ADT: 2,525

METRO

Unknown

Over: ALTADENA DR

0.5MI S/O ORANGE GROVE B, Los Angeles, CA

Built 1976 ADT: 16,840

METRO

Unknown

Over: SAN GABRIEL BOULEVARD

AT I-10 FWY, Los Angeles, CA

Built 1976 ADT: 8,802

METRO

Unknown

Over: SUNNYSLOPE AVE

0.1MI N/O FOOTHILL BLVD, Los Angeles, CA

Built 1976 ADT: 2,214

METRO

Unknown

Over: FOOTHILL BLVD

AT I-10 FWY, Los Angeles, CA

Built 1976 ADT: 21,012

METRO NB

Unknown

Over: FOOTHILL BLVD

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

Built 1941 ADT: 15,554

ELBERON AVE

Unknown

Over: GAFFEY STREET

0.1 M W/O GAFFEY PLACE, Los Angeles, CA

Built 1936 ADT: 24,767

LB CTY COLLEGE POC

Unknown

Over: CARSON ST

0.5MI E/O LAKEWOOD BLVD, Los Angeles, CA

Built 1956 ADT: 31,058

UP RR

Unknown

Over: PARAMOUNT BLVD

0.1MI N/O WHITTIER BLVD, Los Angeles, CA

Built 1972 ADT: 14,832

SPTCO

Unknown

Over: VALLEY BLVD UNDER SPTCO

0.1MI W/O SANTA ANITA AVE, Los Angeles, CA

Built 1973 ADT: 32,400

UPRR

Unknown

Over: AZUSA AVE

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

Built 1971 ADT: 57,846

WHITT GRNWY TR POC

Unknown

Over: NORWALK BLVD

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

Built 1966 ADT: 19,240

DOMINGUEZ SCH POC

Unknown

Over: SANTE FE AVE

0.8MI S/O DEL AMO BLVD, Los Angeles, CA

Built 1954 ADT: 18,746

UP RR

Unknown

Over: SANTA FE AVE

0.1MI N/O I-405 FWY, Los Angeles, CA

Built 1932 ADT: 18,746

UPRR

Unknown

Over: TELEGRAPH RD UP

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

Built 1952 ADT: 39,157

UPRR.

Unknown

Over: 87TH ST E

2.0MI N/O SR-138 HWY, Los Angeles, CA

Built 1967 ADT: 7,210

4TH ST

Unknown

Over: OCEAN PARK BLVD

0.5MI S/O PICO BLVD, Los Angeles, CA

Built 1965 ADT: 3,200

ATSF RR

Unknown

Over: ALOSTA AVE

2.0MI E/O GRAND AVE, Los Angeles, CA

Built 1929 ADT: 33,125

UP RR

Unknown

Over: RESEDA BLVD

0.1 M N/O PARTHENIA ST, Los Angeles, CA

Built 1967 ADT: 42,795

UP RR

Unknown

Over: PARTHENIA STREET

0.1 MI E/O RESEDA BLVD, Los Angeles, CA

Built 1967 ADT: 28,877

UP RR

Unknown

Over: SEPULVEDA BLVD

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

Built 1971 ADT: 32,419

SLAUSON AVE

Unknown

Over: LA CIENEGA BLVD UC

0.7MI N/O CENTINELA AVE, Los Angeles, CA

Built 1949 ADT: 86,288

REBECCA LOPEZ POC

Unknown

Over: VALLEY BOULEVARD

150FT W/O SR-57 FWY, Los Angeles, CA

Built 1974 ADT: 19,285

UP RR, METROLINK

Unknown

Over: LANKERSHIM BLVD

0.15 MI S/O SHERMAN WAY, Los Angeles, CA

Built 1938 ADT: 21,002

EL CAMINO COLEGE M

Unknown

Over: REDONDO BEACH BLVD

0.1MI W/O CRENSHAW BLVD, Los Angeles, CA

Built 1978 ADT: 26,624

ATSF RR

Unknown

Over: 190 TH ST UP

200FT E/O HAWTHORNE BLVD, Los Angeles, CA

Built 1979 ADT: 39,520

ATSF RR

Unknown

Over: NORMANDIE AVE UP

0.5MI S/O SEPULVEDA BL, Los Angeles, CA

Built 1923 ADT: 18,060

UNION PACIFIC RR

Unknown

Over: WILLOW ST

0.8MI W/O I-710 FWY, Los Angeles, CA

Built 1932 ADT: 21,836

SPTCO

Unknown

Over: VICTORY PLACE UP

0.3MI N/O BURBANK BLVD, Los Angeles, CA

Built 1932 ADT: 21,412

UNION PACIFIC RR

Unknown

Over: CHERRY AVE

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

Built 1932 ADT: 30,266

UNION PACIFIC R R

Unknown

Over: ATLANTIC AVE UP

0.1MI N/O DEL AMO BLVD, Los Angeles, CA

Built 1932 ADT: 23,108

UNION PACIFIC RR

Unknown

Over: LONG BEACH BLVD UP

0.2MI S/O DEL AMO BLVD, Los Angeles, CA

Built 1932 ADT: 22,048

MAIN LEASE RD

Unknown

Over: LA CIENEGA BOULEVARD

1.3MI N/O SLAUSON AVE, Los Angeles, CA

Built 1952 ADT: 5,610

ATSF RR

Unknown

Over: FLORENCE AVE UP

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

Built 1979 ADT: 37,465

MAINE AVE POC

Unknown

Over: 6TH ST

0.4MI W/O PACIFIC AVE, Los Angeles, CA

Built 1958 ADT: 17,384

MAINE AVE POC

Unknown

Over: 7TH ST

0.4MI W/O MAGNOLIA AVE, Los Angeles, CA

Built 1958 ADT: 16,324

MAE BOYER PRK POC

Unknown

Over: DEL AMO BOULEVARD

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

Built 1966 ADT: 28,629

MARK TWAIN SCH POC

Unknown

Over: CLARK AVE

0.5MI S/O DEL AMO BLVD, Los Angeles, CA

Built 1958 ADT: 23,002

UPRR

Unknown

Over: DEL AMO BLVD UP

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

Built 1950 ADT: 33,708

VRDGO CANADA POC

Unknown

Over: CANADA BLVD

1.3MI N/O US-101 FWY, Los Angeles, CA

Built 1961 ADT: 39,096

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial