Los Angeles County, CA

3,937 public highway bridges

Los Angeles County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Los Angeles County, California contains 3,937 public highway bridges. Roughly 34.3% are rated “Good,” 17.1% “Fair,” and 2.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

3,937

Total Bridges

34.3%

Good

17.1%

Fair

2.2%

Poor Condition

Condition Distribution

Good

34.3% (1,350)

Fair

17.1% (675)

Poor

2.2% (88)

All Bridges (3,937)

Sort:

INTERSTATE 605

Over: ROSECRANS AVE

07-LA-605-R6.81-NRW, Los Angeles, CA

Built 1966 ADT: 3,350

INTERSTATE 605

Over: IMPERIAL HIGHWAY

07-LA-605-R7.85-NRW, Los Angeles, CA

Built 1966 ADT: 23,000

IMPERIAL-S605 RMP

Over: IMPERIAL HIGHWAY

07-LA-605-R7.85-NRW, Los Angeles, CA

Built 1993 ADT: 24,200

N605-FIRESTONE BLD

Over: IMPERIAL HWY, ON-RAMP

07-LA-605-R7.84-NRW, Los Angeles, CA

Built 1993 ADT: 2,400

INTERSTATE 605

Over: FIRESTONE BLVD

07-LA-605-R8.38-NRW, Los Angeles, CA

Built 1966 ADT: 34,000

N605-FIRESTONE RMP

Over: FIRESTONE BLVD

07-LA-605-R8.37-NRW, Los Angeles, CA

Built 1993 ADT: 34,000

INTERSTATE 605

Over: CECILIA STREET

07-LA-605-R8.91-NRW, Los Angeles, CA

Built 1966 ADT: 1,000

N605-N5&S5 CONN

Over: STUDEBAKER RD-N605 ON-RP

07-LA-605-R9.22-DNY, Los Angeles, CA

Built 1965 ADT: 2,500

INTERSTATE 605

Over: FLORENCE AVE

07-LA-605-R9.35-DNY, Los Angeles, CA

Built 1965 ADT: 33,000

N605-S5 CONNECTOR

Over: FLORENCE AVE

07-LA-605-R9.35-DNY, Los Angeles, CA

Built 1965 ADT: 33,000

N605-N5 CONNECTOR

Over: ROUTE 5

07-LA-605-R9.52-SFSP, Los Angeles, CA

Built 1965 ADT: 186,000

FLORENCE-N5 ON RMP

Over: N5-N&S605 CONNECTOR RAMP

07-LA-005-6.65-SFSP, Los Angeles, CA

Built 1965 ADT: 22,950

S605-FLORENCE OFRP

Over: S5-N&S605 CONN

07-LA-605-R9.54-DNY, Los Angeles, CA

Built 1965 ADT: 230,000

INTERSTATE 605

Over: I 5 & CONNECTOR RAMPS

07-LA-605-R9.55-SFSP, Los Angeles, CA

Built 1965 ADT: 22,700

INTERSTATE 605

Over: TELEGRAPH RD

07-LA-605-R10.25-SFSP, Los Angeles, CA

Built 1965 ADT: 2,400

INTERSTATE 605

Over: SLAUSON AVE

07-LA-605-R11.54-SFSP, Los Angeles, CA

Built 1965 ADT: 38,000

INTERSTATE 605

Over: WASHINGTON BLVD

07-LA-605-R12.05-SFSP, Los Angeles, CA

Built 1965 ADT: 36,000

INTERSTATE 605

Over: SARAGOSA STREET

07-LA-605-R12.41-SFSP, Los Angeles, CA

Built 1965 ADT: 14,000

INTERSTATE 605

Over: DUNLAP CROSSING ROAD

07-LA-605-R12.85-SFSP, Los Angeles, CA

Built 1965 ADT: 1,250

INTERSTATE 605

Over: BEXLEY DR

07-LA-605-R13.18-SFSP, Los Angeles, CA

Built 1965 ADT: 3,100

ROUTE 170

Over: VANOWEN STREET

07-LA-170-R17.75-LA, Los Angeles, CA

Built 1968 ADT: 5,000

UPRR,AMTRAK,METRO

Over: STATE ROUTE 170

07-LA-170-R18.40-LA, Los Angeles, CA

Built 1968 ADT: 184,000

STATE ROUTE 170

Over: ROSCOE BLVD

07-LA-170-R19.72-LA, Los Angeles, CA

Built 1968 ADT: 5,000

ROUTE 170

Over: STRATHERN STREET

07-LA-170-R19.30-LA, Los Angeles, CA

Built 1968 ADT: 5,000

SHERMAN WAY OC

Over: ROUTE 170

07-LA-170-R18.27-LA, Los Angeles, CA

Built 1968 ADT: 206,000

PALO COMADO CYN RD

Over: ROUTE 101

07-LA-101-33.69-AGRH, Los Angeles, CA

Built 1963 ADT: 185,000

PARKWAY CALABASAS

Over: US 101

07-LA-101-28.29-LA, Los Angeles, CA

Built 1965 ADT: 196,000

MUREAU RD

Over: ROUTE 101

07-LA-101-29.06, Los Angeles, CA

Built 1965 ADT: 196,000

RAMP/CONNECTOR 170

Over: SHERMAN WY N170 ON-RAMP

07-LA-170-R18.16-LA, Los Angeles, CA

Built 1968 ADT: 3,000

STATE ROUTE 170

Over: BURBANK BLVD

07-LA-170-R15.99-LA, Los Angeles, CA

Built 1966 ADT: 8,500

STATE ROUTE 170

Over: LAUREL CANYON BLVD

07-LA-170-R16.77-LA, Los Angeles, CA

Built 1966 ADT: 14,000

STATE ROUTE 170

Over: VICTORY BLVD

07-LA-170-R17.25-LA, Los Angeles, CA

Built 1966 ADT: 5,000

STATE ROUTE 170

Over: VICTORY BLVD

07-LA-170-R17.25-LA, Los Angeles, CA

Built 1966 ADT: 5,000

STATE ROUTE 170

Over: VICTORY BLVD

07-LA-170-R17.25-LA, Los Angeles, CA

Built 1966 ADT: 5,000

INTERSTATE 5

Over: RYE CANYON ROAD

07-LA-005-R54.17-SCTA, Los Angeles, CA

Built 1964 ADT: 12,012

HART STREET POC

Over: STATE ROUTE 170

07-LA-170-R18.02-LA, Los Angeles, CA

Built 1968 ADT: 184,000

STATE ROUTE 60

Over: FINDLAY AVE

07-LA-060-R5.16-MTBL, Los Angeles, CA

Built 1967 ADT: 5,100

STATE ROUTE 60

Over: WILCOX AVENUE

07-LA-060-R5.89-MTBL, Los Angeles, CA

Built 1967 ADT: 19,000

ROUTE 60

Over: GARFIELD AVE

07-LA-060-R5.60-MTBL, Los Angeles, CA

Built 1967 ADT: 29,250

STATE ROUTE 60

Over: ATLANTIC BLVD

07-LA-060-R4.43-MONP, Los Angeles, CA

Built 1967 ADT: 41,746

STATE ROUTE 60

Over: POMONA BLVD

07-LA-060-R4.68-MONP, Los Angeles, CA

Built 1967 ADT: 5,448

VICTORY BL-N170 ON

Over: N170-VICTORY BL OFF-RAMP

07-LA-170-R17.13-LA, Los Angeles, CA

Built 1966 ADT: 1,500

VICTORY BL-S170 ON

Over: S170-VICTORY BL OFF-RAMP

07-LA-170-R17.33-LA, Los Angeles, CA

Built 1966 ADT: 3,000

BNSF, SCRRA METRO

Over: S710-W10 CONNECTOR RAMP

07-LA-710-R26.59-MONP, Los Angeles, CA

Built 1974 ADT: 60,000

E91-N605 CONNECTOR

Over: 605 & W91-S605 CONN

07-LA-091-R16.97-CRTS, Los Angeles, CA

Built 1966 ADT: 28,010

STATE ROUTE 91

Over: SR 605 & RAMPS

07-LA-091-R16.90-CRTS, Los Angeles, CA

Built 1966 ADT: 28,000

W91-S605 CONNECTOR

Over: ROUTE 605

07-LA-091-R16.93-CRTS, Los Angeles, CA

Built 1966 ADT: 30,670

STATE ROUTE 91

Over: STUDEBAKER ROAD

07-LA-091-R17.08-CRTS, Los Angeles, CA

Built 1968 ADT: 27,500

W91-N&S605 CONN

Over: STUDEBAKER ROAD

07-LA-091-R17.09-CRTS, Los Angeles, CA

Built 1968 ADT: 27,000

HELLMAN AVE

Over: INTERSTATE 710

07-LA-710-R27.11-LA, Los Angeles, CA

Built 1965 ADT: 45,500

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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