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:

STEARNS ST

Over: LOS CERRITOS DRA CHA

0.3MI W/O STUDEBAKER RD, Los Angeles, CA

Built 1954 Load: 35.0 t ADT: 11,330

GLENDORA AVE

Over: SAN DIMAS WASH

230FT N/O ARROW HWY, Los Angeles, CA

Built 1966 Load: 35.0 t ADT: 13,117

SAND CYN RD

Over: IRON CYN CRK

2.5MI S/O SOLEDAD CYN RD, Los Angeles, CA

Built 1970 Load: 35.0 t ADT: 3,325

HERMOSA DR

Over: RUBIO WASH

0.1MI W/O SAN GABRIEL BL, Los Angeles, CA

Built 1927 Load: 35.0 t ADT: 4,794

ECHELON AVE

Over: PUENTE CRK

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

Built 1970 Load: 35.0 t ADT: 5,345

E210-HUNTINGTON DR

Over: BRADBURY FC CH

07-LA-210-R36.51-IRW, Los Angeles, CA

Built 1968 Load: 35.3 t ADT: 10,400

GARVEY AVE

Over: ALHAMBRA WASH

100FT W/O SAN GAB BLVD, Los Angeles, CA

Built 1935 Load: 35.3 t ADT: 30,660

LOS COYOTES DIAG

Over: LOS CERRITOS DRN CH

150FT S/O SPRING ST, Los Angeles, CA

Built 1954 Load: 35.3 t ADT: 28,620

LA MIRADA BLVD

Over: LEFFINGWELL CR

0.1MI N/O MULBERRY DRIVE, Los Angeles, CA

Built 1963 Load: 35.3 t ADT: 16,218

121ST ST E

Over: CALIFORNIA AQUEDUCT

0.3MI N/O FT TEJON RD, Los Angeles, CA

Built 1969 Load: 35.3 t ADT: 297

INTERSTATE 10 EB

Over: RUBIO WASH

07-LA-010-26.73-RSMD, Los Angeles, CA

Built 1953 Load: 35.4 t ADT: 104,000

S5-STADIUM WAY OFF

Over: NEWELL STREET

07-LA-005-22.26-LA, Los Angeles, CA

Built 1961 Load: 35.6 t ADT: 2,450

N&S101-S110 CONNEC

Over: TEMPLE STREET

07-LA-101-1.63-LA, Los Angeles, CA

Built 1948 Load: 35.6 t ADT: 76,801

INTERSTATE 10 WB

Over: RUBIO WASH

07-LA-010-26.73-RSMD, Los Angeles, CA

Built 1953 Load: 35.6 t ADT: 104,000

INTERSTATE 5

Over: PACOIMA WASH

07-LA-005-39.19-LA, Los Angeles, CA

Built 1963 Load: 35.6 t ADT: 275,000

E22&S605-N405 CONN

Over: SAN GABRIEL RIVER

07-LA-405-0.02-LBCH, Los Angeles, CA

Built 1966 Load: 35.6 t ADT: 40,000

STATE ROUTE 14

Over: NEWHALL AVENUE

07-LA-014-R27.04, Los Angeles, CA

Built 1971 Load: 35.6 t ADT: 148,000

PLACERITA CYN RD

Over: SAND CYN WASH

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

Built 1958 Load: 35.6 t ADT: 2,197

INTERSTATE 605

Over: SAN JOSE DIVERSION CHAN

07-LA-605-R17.69-IDY, Los Angeles, CA

Built 1964 Load: 36.0 t ADT: 230,000

STATE ROUTE 14

Over: AVENUE "O-8"

07-LA-014-R62.12-PMDL, Los Angeles, CA

Built 1972 Load: 36.0 t ADT: 44,500

FRANKLIN AVE

Over: GARDEN

0.1 W/O ST GEORGE ST, Los Angeles, CA

Built 1925 Load: 36.0 t ADT: 23,800

WILLOW ST

Over: EDISON ACCESS RD UC

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

Built 1962 Load: 36.0 t ADT: 28,620

ALONDRA BLVD

Over: COMPTON CRK

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

Built 1938 Load: 36.0 t ADT: 29,362

TURNBULL CYN RD

Over: SAN JOSE CR

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

Built 1967 Load: 36.0 t ADT: 16,624

COMMERCE POINTE DR

Over: SAN JOSE CRK

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

Built 1990 Load: 36.0 t ADT: 1,098

I 5

Over: 4TH STREET

07-LA-005-17.56-LA, Los Angeles, CA

Built 1960 Load: 36.3 t ADT: 235,620

INTERSTATE 10

Over: WESTWOOD BLVD

07-LA-010-R6.12-LA, Los Angeles, CA

Built 1963 Load: 36.3 t ADT: 258,000

INTERSTATE 210

Over: CALIFORNIA AVENUE

07-LA-210-R34.24-MNRO, Los Angeles, CA

Built 1966 Load: 36.3 t ADT: 258,000

INTERSTATE 210

Over: SHAMROCK AVENUE

07-LA-210-R34.49-MNRO, Los Angeles, CA

Built 1967 Load: 36.3 t ADT: 258,000

STATE ROUTE 57

Over: SUNSET CROSSING RD

07-LA-057-4.98-DMBR, Los Angeles, CA

Built 1970 Load: 36.3 t ADT: 145,000

RAMONA BLVD

Over: RUBIO WASH

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

Built 1952 Load: 36.3 t ADT: 4,794

2ND ST (WB)

Over: SAN GABRIEL RIV

0.8MI E/O SR-1 HWY, Los Angeles, CA

Built 1964 Load: 36.3 t ADT: 20,882

STATE ROUTE 110 SB

Over: SOLANO AVENUE

07-LA-110-25.09L-LA, Los Angeles, CA

Built 1942 Load: 36.6 t ADT: 183,000

INTERSTATE 210 EB

Over: POLK STREET

07-LA-210-R3.28-LA, Los Angeles, CA

Built 1969 Load: 36.6 t ADT: 38,000

WILLOW ST

Over: COYOTE CRK

0.1MI W/O I-605 FWY, Los Angeles, CA

Built 1962 Load: 36.6 t ADT: 28,620

STUDEBAKER RD S/B

Over: S C EDISON N CHAN

350FT N/O LOYNES DRIVE, Los Angeles, CA

Built 1966 Load: 36.6 t ADT: 48,767

TAMPA AVE

Over: LIMEKILN CHANNEL

0.2MI S/O NORDHOFF ST, Los Angeles, CA

Built 1971 Load: 36.6 t ADT: 40,785

CONWELL ST

Over: SAN DIMAS WASH

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

Built 1968 Load: 36.6 t ADT: 1,010

Explorer Road

Over: Arroyo Seco

2.4KM N. OF I-210/Arroyo, Los Angeles, CA

Built 1971 Load: 36.6 t ADT: 3,492

E END AVE

Over: SAN ANTONIO WASH

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

Built 1962 Load: 36.9 t ADT: 7,733

VICTORIA AVE

Over: LEFFINGWELL CRK

0.3MI N/O TELEGRAPH RD, Los Angeles, CA

Built 1969 Load: 36.9 t ADT: 3,636

U.S. HIGHWAY 101

Over: FRANKLIN AVENUE

07-LA-101-7.20-LA, Los Angeles, CA

Built 1953 Load: 37.3 t ADT: 20,000

STATE ROUTE 2

Over: METROLINK,UP RR,AMTRAK,

07-LA-002-15.81-LA, Los Angeles, CA

Built 1958 Load: 37.3 t ADT: 153,000

GAREY AVE

Over: THOMPSON CRK

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

Built 1965 Load: 37.3 t ADT: 16,100

MARGUERITA AVE

Over: UPRR

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

Built 1979 Load: 37.3 t ADT: 3,300

N RIDGE ROUTE RD

Over: VIOLIN CRK

0.3MI S/O LAKE HUGHES RD, Los Angeles, CA

Built 1986 Load: 37.3 t ADT: 3,570

COPPER HILL DR

Over: SAN FRANCISQUITO CK

250FT W/O MCBEAN PKWY, Los Angeles, CA

Built 1999 Load: 37.3 t ADT: 26,326

INTERSTATE 110

Over: PIPELINE RD

07-LA-110-2.39-LA, Los Angeles, CA

Built 1956 Load: 37.6 t ADT: 93,600

INTERSTATE 210

Over: BIG DALTON WASH

07-LA-210-R41.87-GDR, Los Angeles, CA

Built 1969 Load: 37.6 t ADT: 250,000

CESAR E CHAVEZ AVE

Over: L A RIVER, UP RR, BNSF

0.2 MI W/O FWY 10, Los Angeles, CA

Built 1926 Load: 37.6 t ADT: 37,152

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

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