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 110

Over: S110-E47 CONNECTOR RAMP

07-LA-110-R0.92-LA, Los Angeles, CA

Built 1970 ADT: 30,000

S47-GAFFEY OFF RMP

Over: STATE ROUTE 110

07-LA-047-L0.22-LA, Los Angeles, CA

Built 1970 ADT: 44,250

HOLLY DR OC

Over: ROUTE 2

07-LA-002-R19.05-GNDL, Los Angeles, CA

Built 1978 ADT: 8,000

HOLLY DRIVE

Over: W2-W&E134 CONNECTOR RMPS

07-LA-002-R19.05-GNDL, Los Angeles, CA

Built 1978 ADT: 8,000

STATE ROUTE 90

Over: MESMER AVE

07-LA-090-2.33-LA, Los Angeles, CA

Built 1968 ADT: 1,000

INTERSTATE 210 WB

Over: GLENOAKS BLVD

07-LA-210-R1.40-LA, Los Angeles, CA

Built 1969 ADT: 3,073

INTERSTATE 210 EB

Over: GLENOAKS BLVD

07-LA-210-R1.40-LA, Los Angeles, CA

Built 1969 ADT: 3,073

STATE ROUTE 90

Over: INGLEWOOD BLVD

07-LA-090-R2.01-LA, Los Angeles, CA

Built 1968 ADT: 6,000

W210-S605 CONNECTR

Over: I 210 & RAMPS

07-LA-210-R36.43-IRW, Los Angeles, CA

Built 1968 ADT: 8,000

STATE ROUTE 57

Over: ARROW HWY

07-LA-057-R10.74-SDMS, Los Angeles, CA

Built 1971 ADT: 17,500

INTERSTATE 210 WB

Over: MICHILLINDA AVENUE

07-LA-210-R29.79-ADA, Los Angeles, CA

Built 1971 ADT: 60,500

INTERSTATE 210 EB

Over: MICHILLINDA AVENUE

07-LA-210-R29.79-ADA, Los Angeles, CA

Built 1971 ADT: 60,500

COLORADO-E210 ON

Over: MICHILLINDA AVENUE

07-LA-210-R29.80-ADA, Los Angeles, CA

Built 1971 ADT: 4,100

W210-FOOTHILL OFF

Over: ROSEMEAD BLVD

07-LA-210-R29.49-PAS, Los Angeles, CA

Built 1971 ADT: 7,300

INTERSTATE 210 WB

Over: ROSEMEAD BLVD

07-LA-210-R29.49-PAS, Los Angeles, CA

Built 1971 ADT: 20,300

INTERSTATE 210 EB

Over: ROSEMEAD BLVD

07-LA-210-R29.49-PAS, Los Angeles, CA

Built 1971 ADT: 20,300

HUNTINGTON DR-S605

Over: CENTRAL AVENUE

07-LA-605-25.98-DRT, Los Angeles, CA

Built 1968 ADT: 1,400

N605 & E210-HTN DR

Over: CENTRAL AVENUE

07-LA-605-25.98-DRT, Los Angeles, CA

Built 1968 ADT: 1,400

RAMP/CONNECTOR 5

Over: SIERRA HWY-N5 ON-RAMP

07-LA-005S-C45.63-LA, Los Angeles, CA

Built 1971 ADT: 4,930

S14 TRK-S5 TRK CON

Over: ROUTE 5 TRK, SIERRA HWY

07-LA-014-R24.81-LA, Los Angeles, CA

Built 1971 ADT: 7,905

INTERSTATE 210 WB

Over: SIERRA MADRE VILLA AVE

07-LA-210-R29.29-PAS, Los Angeles, CA

Built 1976 ADT: 60,500

INTERSTATE 210 EB

Over: SIERRA MADRE VILLA AVE

07-LA-210-R29.29-PAS, Los Angeles, CA

Built 1976 ADT: 127,350

SR 2

Over: GLENOAKS BLVD

07-LA-002-R19.18-GNDL, Los Angeles, CA

Built 1978 ADT: 9,600

W2-W&E134 CONNECTO

Over: GLENOAKS BLVD

07-LA-002-R19.18-GNDL, Los Angeles, CA

Built 1978 ADT: 9,200

STATE ROUTE 57

Over: CIENEGA AVENUE

07-LA-057-R10.53-SDMS, Los Angeles, CA

Built 1971 ADT: 4,900

STATE ROUTE 210

Over: W210-S57 CONNECTOR RAMP

07-LA-210-R44.56-GDR, Los Angeles, CA

Built 1970 ADT: 29,500

STATE ROUTE 210

Over: LONE HILL AVENUE

07-LA-210-R44.20-GDR, Los Angeles, CA

Built 1970 ADT: 21,500

N57-W210 CONNECTOR

Over: LONE HILL AVENUE

07-LA-057-R12.00L-GDR, Los Angeles, CA

Built 1970 ADT: 19,600

N605-W210 CONN

Over: SR 605, SR 210 & RAMPS

07-LA-605-25.60-IRW, Los Angeles, CA

Built 1968 ADT: 22,000

STATE ROUTE 57

Over: GLADSTONE STREET

07-LA-057-R11.35L-SDMS, Los Angeles, CA

Built 1971 ADT: 6,300

STATE ROUTE 57 NB

Over: GLADSTONE STREET

07-LA-057-R11.35R-SDMS, Los Angeles, CA

Built 1971 ADT: 6,300

STATE ROUTE 57

Over: AUTO CENTER DRIVE

07-LA-057-R11.57L-GDR, Los Angeles, CA

Built 1971 ADT: 4,900

STATE ROUTE 57 NB

Over: AUTO CENTRE DRIVE

07-LA-057-R11.60R-GDR, Los Angeles, CA

Built 1971 ADT: 4,900

S57-S71 CONNECTOR

Over: STATE ROUTE 57 & CONNS

07-LA-057-R7.94-SDMS, Los Angeles, CA

Built 1972 ADT: 70,000

N57-W210 CONNECTOR

Over: INTERSTATE 210

07-LA-057-R11.79L-GDR, Los Angeles, CA

Built 1970 ADT: 191,000

INTERSTATE 5 SB

Over: METROLINK,UP RR,SAN FERN

07-LA-005-R44.87-LA, Los Angeles, CA

Built 1971 ADT: 7,500

INTERSTATE 5 NB

Over: METROLINK,UP RR,SAN FERN

07-LA-005-R44.87, Los Angeles, CA

Built 1971 ADT: 7,500

S5-E210 CONNECTOR

Over: I 5 & CONNECTORS

07-LA-005-R44.01-LA, Los Angeles, CA

Built 1975 ADT: 17,800

BALBOA BLVD

Over: I5,I5 TRUCK,CO RD,UP RR

07-LA-005-R44.43-LA, Los Angeles, CA

Built 1971 ADT: 281,078

N71-W10 CONNECTOR

Over: I 10 & CONN

07-LA-071-R0.58-POM, Los Angeles, CA

Built 1972 ADT: 29,500

W210-S5 CONNECTOR

Over: W210-N5 CONNECTOR RAMP

07-LA-210-R0.12-LA, Los Angeles, CA

Built 1971 ADT: 15,600

W210-S5 CONNECTOR

Over: I5,I210,ST,UPRR,I5 TRUCK

07-LA-210-R0.06-LA, Los Angeles, CA

Built 1975 ADT: 16,425

W210-N5 CONNECTOR

Over: I 5 TRUCK NBND

07-LA-210-R0.02-LA, Los Angeles, CA

Built 1971 ADT: 17,800

N57-W210 CONNECTOR

Over: W210-S57 CONNECTOR RAMP

07-LA-057-R11.65L-GDR, Los Angeles, CA

Built 1971 ADT: 22,000

STATE ROUTE 210

Over: AMELIA AVENUE

07-LA-210-R44.71-GDR, Los Angeles, CA

Built 1970 ADT: 3,500

AMELIA AVE

Over: W210-S57 CONNECTOR RAMP

07-LA-210-R44.72-GDR, Los Angeles, CA

Built 1970 ADT: 29,500

STATE ROUTE 57

Over: COVINA BLVD

07-LA-057-R10.27-SDMS, Los Angeles, CA

Built 1971 ADT: 7,000

E&W10-S57 CONN

Over: SAN JOSE WASH, CAMPUS DR

07-LA-010-42.34-POM, Los Angeles, CA

Built 1972 ADT: 99

STATE ROUTE 71 WB

Over: I 10 & CONN

07-LA-071-R0.52-POM, Los Angeles, CA

Built 1972 ADT: 247,000

STATE ROUTE 71 EB

Over: I 10 & CONN

07-LA-071-R0.52-POM, Los Angeles, CA

Built 1972 ADT: 11,300

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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Compiled by PlainBridges, Independent data publisher

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