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:

INTERSTATE 10

Over: CATTARAUGUS AVE

07-LA-010-R8.30-LA, Los Angeles, CA

Built 1964 ADT: 5,240

INTERSTATE 10

Over: VERMONT AVENUE

07-LA-010-R13.80-LA, Los Angeles, CA

Built 1962 ADT: 44,004

INTERSTATE 10

Over: NORMANDIE AVE

07-LA-010-R13.30-LA, Los Angeles, CA

Built 1962 ADT: 33,600

WESTERN AVE

Over: INTERSTATE 10 AND RAMPS

07-LA-010-R12.82-LA, Los Angeles, CA

Built 1962 ADT: 287,000

GRAMERCY PLACE

Over: INTERSTATE 10 AND RAMPS

07-LA-010-R12.57-LA, Los Angeles, CA

Built 1962 ADT: 2,000

ARLINGTON AVE

Over: INTERSTATE 10

07-LA-010-R12.32-LA, Los Angeles, CA

Built 1962 ADT: 287,000

SIXTH AVE

Over: INTERSTATE 10

07-LA-010-R11.97-LA, Los Angeles, CA

Built 1962 ADT: 287,000

TENTH AVE

Over: INTERSTATE 10

07-LA-010-R11.70-LA, Los Angeles, CA

Built 1962 ADT: 287,000

CRENSHAW BLVD

Over: INTERSTATE 10

07-LA-010-R11.39-LA, Los Angeles, CA

Built 1962 ADT: 273,000

WEST BLVD

Over: INTERSTATE 10

07-LA-010-R11.03-LA, Los Angeles, CA

Built 1962 ADT: 273,000

CHERRY AVE OFF RMP

Over: ROUTE 405 NB ON-RAMP

07-LA-405-5.01-LBCH, Los Angeles, CA

Built 1964 ADT: 940

ORANGE AVE OFF RMP

Over: RTE 405 ON-RAMP

07-LA-405-4.99-LBCH, Los Angeles, CA

Built 1964 ADT: 22,102

N405-SB N LAKEWOOD

Over: WILLOW STREET

07-LA-405-2.30-LBCH, Los Angeles, CA

Built 1964 ADT: 99

INTERSTATE 10

Over: BALLONA CRK, FAIRFAX OFF

07-LA-010-R9.12-LA, Los Angeles, CA

Built 1964 ADT: 10,700

INTERSTATE 10

Over: HAUSER BLVD

07-LA-010-R9.74-LA, Los Angeles, CA

Built 1964 ADT: 15,300

INTERSTATE 10

Over: REDONDO BLVD

07-LA-010-R10.12-LA, Los Angeles, CA

Built 1964 ADT: 20,000

INTERSTATE 10

Over: LA BREA AVE

07-LA-010-R10.43-LA, Los Angeles, CA

Built 1964 ADT: 48,300

PEDESTRIAN WALKWAY

Over: INTERSTATE 10

07-LA-010-R11.17-LA, Los Angeles, CA

Built 1964 ADT: 273,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 10

07-LA-010-R11.84-LA, Los Angeles, CA

Built 1964 ADT: 287,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 10

07-LA-010-R12.10-LA, Los Angeles, CA

Built 1964 ADT: 287,000

FOURTH ST

Over: ROUTE 1

07-LA-001-R34.89-SMCA, Los Angeles, CA

Built 1965 ADT: 58,000

LINCOLN BLVD

Over: INTERSTATE 10

07-LA-001-R34.55-SMCA, Los Angeles, CA

Built 1965 ADT: 215,000

11TH STREET

Over: INTERSTATE 10

07-LA-010-R2.38-SMCA, Los Angeles, CA

Built 1965 ADT: 141,500

14TH STREET

Over: INTERSTATE 10

07-LA-010-R2.61-SMCA, Los Angeles, CA

Built 1965 ADT: 141,000

17TH STREET

Over: INTERSTATE 10

07-LA-010-R2.84-SMCA, Los Angeles, CA

Built 1965 ADT: 141,000

20TH STREET

Over: INTERSTATE 10

07-LA-010-R3.07-SMCA, Los Angeles, CA

Built 1965 ADT: 141,500

CLOVERFIELD BLVD

Over: INTERSTATE 10

07-LA-010-R3.34-SMCA, Los Angeles, CA

Built 1963 ADT: 185,000

INTERSTATE 10

Over: STEWART STREET

07-LA-010-R3.71-SMCA, Los Angeles, CA

Built 1965 ADT: 6,700

INTERSTATE 10

Over: PICO BLVD, CENTINELA AVE

07-LA-010-R4.24-SMCA, Los Angeles, CA

Built 1965 ADT: 13,180

INTERSTATE 10

Over: BUNDY DRIVE

07-LA-010-R4.51-LA, Los Angeles, CA

Built 1963 ADT: 46,740

INTERSTATE 10

Over: BARRINGTON AVE

07-LA-010-R4.82-LA, Los Angeles, CA

Built 1963 ADT: 20,290

NATIONAL BLVD

Over: ROUTE 10

07-LA-010-R6.31-LA, Los Angeles, CA

Built 1963 ADT: 258,000

OVERLAND AVE

Over: INTERSTATE 10, RAMPS

07-LA-010-R6.40-LA, Los Angeles, CA

Built 1964 ADT: 258,000

INTERSTATE 10

Over: SEPULVEDA BLVD

07-LA-010-R5.56-LA, Los Angeles, CA

Built 1963 ADT: 32,000

E10-N405 CONN

Over: 10, 405, STS, METRO RR

07-LA-010-R5.28-LA, Los Angeles, CA

Built 1963 ADT: 24,160

INTERSTATE 10

Over: INTERSTATE 405

07-LA-010-R5.43-LA, Los Angeles, CA

Built 1963 ADT: 268,000

S405-E10 CONNECTOR

Over: W10-S405, I 10,SEPULVEDA

07-LA-405-29.62-LA, Los Angeles, CA

Built 1963 ADT: 237,000

N405-W10 CONNECTOR

Over: I 405 & I 10,SAWTELLE

07-LA-405-29.43-LA, Los Angeles, CA

Built 1963 ADT: 237,000

INTERSTATE 605

Over: S605-E10

07-LA-605-R20.09-BWP, Los Angeles, CA

Built 1971 ADT: 23,700

N605-W10

Over: S605-E10

07-LA-605-R20.09-BWP, Los Angeles, CA

Built 1964 ADT: 23,000

INTERSTATE 605

Over: INTERSTATE 10

07-LA-605-R20.17-BWP, Los Angeles, CA

Built 1971 ADT: 254,780

INTERSTATE 605

Over: W10-S605 CONN

07-LA-605-20.27-BWP, Los Angeles, CA

Built 1971 ADT: 30,000

E10-N605 CONNECTOR

Over: W10-S605 CONNECTOR RAMP

07-LA-010-31.18-BWP, Los Angeles, CA

Built 1964 ADT: 207,800

INTERSTATE 10

Over: COVENTRY PLACE

07-LA-010-R5.99-LA, Los Angeles, CA

Built 1964 ADT: 2,300

N110-STADIUM WAY

Over: STATE ROUTE 110

07-LA-110-24.53R-LA, Los Angeles, CA

Built 1962 ADT: 210,000

W10-S405 CONN

Over: 10, 405, RAMPS, STS

07-LA-010-R5.65-LA, Los Angeles, CA

Built 1964 ADT: 268,000

N405-E10 CONNECTOR

Over: SEPULVEDA BLVD

07-LA-405-29.42-LA, Los Angeles, CA

Built 1963 ADT: 28,978

INTERSTATE 10

Over: MILITARY AVE

07-LA-010-R5.76-LA, Los Angeles, CA

Built 1964 ADT: 4,120

INTERSTATE 605

Over: ALONDRA BLVD

07-LA-605-R5.81-NRW, Los Angeles, CA

Built 1966 ADT: 26,265

INTERSTATE 605

Over: EXCELSIOR DRIVE

07-LA-605-R6.40-NRW, Los Angeles, CA

Built 1966 ADT: 2,200

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 6, 2026