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:

E10-S71 CONNECTOR

Over: N57-E10 CONNECTOR RAMP

07-LA-010-42.53-POM, Los Angeles, CA

Built 1972 ADT: 32,000

S57-E10 CONNECTOR

Over: N57-E10 CONNECTOR RAMP

07-LA-057-R7.72-POM, Los Angeles, CA

Built 1972 ADT: 32,000

VIA VERDE

Over: STATE ROUTE 57

07-LA-057-R8.71-SDMS, Los Angeles, CA

Built 1971 ADT: 158,000

STATE ROUTE 57

Over: INTERSTATE 10 & E10-S71

07-LA-057-R7.66-POM, Los Angeles, CA

Built 1972 ADT: 17,900

E10-N57 CONNECTOR

Over: INTERSTATE 10 AND RAMPS

07-LA-010-42.44-POM, Los Angeles, CA

Built 1972 ADT: 15,000

S57-E10 CONNECTOR

Over: I 10 & N71-W10 CONNECTOR

07-LA-057-R7.72-SDMS, Los Angeles, CA

Built 1972 ADT: 189,000

N57-W10 CONNECTOR

Over: INTERSTATE 10 & CONNS

07-LA-057-R7.66-POM, Los Angeles, CA

Built 1972 ADT: 13,800

W10-S57 CONNECTOR

Over: INTERSTATE 10 AND RAMPS

07-LA-010-42.45-POM, Los Angeles, CA

Built 1972 ADT: 15,000

STATE ROUTE 57

Over: SAN DIMAS AVENUE

07-LA-057-R9.82-SDMS, Los Angeles, CA

Built 1971 ADT: 6,300

W210-FOOTHILL OFF

Over: FOOTHILL BL-W210 ON RAMP

07-LA-210-R29.65, Los Angeles, CA

Built 1971 ADT: 7,700

ROCKVALE AVE POC

Over: INTERSTATE 210

07-LA-210-R40.25-AZU, Los Angeles, CA

Built 1969 ADT: 250,000

E210-S57 CONNECTOR

Over: SAN DIMAS CH, LONE HILL

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

Built 1970 ADT: 19,600

INTERSTATE 210 WB

Over: FOOTHILL BLVD

07-LA-210-R0.43-LA, Los Angeles, CA

Built 1971 ADT: 2,800

INTERSTATE 210 EB

Over: FOOTHILL BLVD

07-LA-210-R0.43-LA, Los Angeles, CA

Built 1971 ADT: 2,800

INTERSTATE 210 WB

Over: YARNELL STREET

07-LA-210-R0.84-LA, Los Angeles, CA

Built 1970 ADT: 2,100

INTERSTATE 210 EB

Over: YARNELL STREET

07-LA-210-R0.84-LA, Los Angeles, CA

Built 1970 ADT: 2,100

PEDESTRIAN WALKWAY

Over: STATE ROUTE 2

07-LA-002-R17.52-LA, Los Angeles, CA

Built 1976 ADT: 143,000

W210-FOOTHILL OFF

Over: MICHILLINDA AVE & ONRAMP

07-LA-210-R29.81-ADA, Los Angeles, CA

Built 1971 ADT: 6,800

E210-COLORADO OFF

Over: ROSEMEAD BL-E210 ON RAMP

07-LA-210-R29.66, Los Angeles, CA

Built 1971 ADT: 2,800

CERRITOS AVENUE

Over: INTERSTATE 210

07-LA-210-R40.07-AZU, Los Angeles, CA

Built 1969 ADT: 250,000

CITRUS AVENUE

Over: INTERSTATE 210

07-LA-210-R40.60-AZU, Los Angeles, CA

Built 1969 ADT: 250,000

STATE ROUTE 47 WB

Over: PACIFIC AVE

07-LA-047-R0.17-LA, Los Angeles, CA

Built 1970 ADT: 17,200

STATE ROUTE 47 EB

Over: PACIFIC AVE

07-LA-047-R0.17-LA, Los Angeles, CA

Built 1970 ADT: 17,200

INTERSTATE 605 SB

Over: SAN GABRIEL RIVER

07-LA-605-22.68-IRW, Los Angeles, CA

Built 1970 ADT: 1,000

INTERSTATE 605 NB

Over: SAN GABRIEL RIVER

07-LA-605-22.69-IRW, Los Angeles, CA

Built 1970 ADT: 1,000

UP RR

Over: ST RTE 138 (FT TEJON RD)

07-LA-138-51.06, Los Angeles, CA

Built 1967 ADT: 37,000

GRAHAM ACCESS

Over: INTERSTATE 605

07-LA-605-23.32-IRW, Los Angeles, CA

Built 1970 ADT: 176,000

LIVE OAK AVE

Over: INTERSTATE 605

07-LA-605-23.52-IRW, Los Angeles, CA

Built 1970 ADT: 134,000

ARROW HWY

Over: INTERSTATE 605

07-LA-605-23.96-IRW, Los Angeles, CA

Built 1970 ADT: 134,000

INTERSTATE 210 WB

Over: ALLEN AVE

07-LA-210-R27.41-PAS, Los Angeles, CA

Built 1976 ADT: 23,500

INTERSTATE 210 EB

Over: ALLEN AVE

07-LA-210-R27.41-PAS, Los Angeles, CA

Built 1976 ADT: 23,500

INTERSTATE 210 WB

Over: CRAIG AVE

07-LA-210-R27.81-PAS, Los Angeles, CA

Built 1976 ADT: 4,240

INTERSTATE 210 EB

Over: CRAIG AVE

07-LA-210-R27.81-PAS, Los Angeles, CA

Built 1976 ADT: 4,240

PEDESTRIAN WALKWAY

Over: STATE ROUTE 110

07-LA-110-R0.75-LA, Los Angeles, CA

Built 1970 ADT: 44,250

INTERSTATE 210

Over: GRAND AVENUE

07-LA-210-R41.59-GDR, Los Angeles, CA

Built 1969 ADT: 19,500

BARRANCA AVENUE

Over: INTERSTATE 210

07-LA-210-R41.11-GDR, Los Angeles, CA

Built 1969 ADT: 250,000

GALANTO AVE POC

Over: INTERSTATE 210

07-LA-210-R40.92-AZU, Los Angeles, CA

Built 1969 ADT: 250,000

STATE ROUTE 71

Over: RIDGEWAY STREET

07-LA-071-R0.92-POM, Los Angeles, CA

Built 1972 ADT: 8,500

LOWER AZUSA ROAD

Over: INTERSTATE 605

07-LA-605-22.15-IRW, Los Angeles, CA

Built 1971 ADT: 180,000

CAMPUS ROAD

Over: I 10,CONN,RMPS,METRO,BUS

07-LA-010-21.00-MONP, Los Angeles, CA

Built 1972 ADT: 6,800

MCBEAN PKWY OC

Over: ROUTE 5

07-LA-005-R51.44, Los Angeles, CA

Built 1968 ADT: 193,152

MOVIE LANE

Over: SR 118

07-LA-118-R1.47, Los Angeles, CA

Built 1968 ADT: 155,000

SOTO ST-W10 ONRAMP

Over: METROLINK & I 10 BUSWAY

07-LA-010-19.20-LA, Los Angeles, CA

Built 1972 ADT: 1,000

W10-SOTO ST OFFRMP

Over: METROLINK & I-10 BUSWAY

07-LA-010-19.25-LA, Los Angeles, CA

Built 1972 ADT: 1,000

STATE ROUTE 210

Over: SAN DIMAS AVENUE

07-LA-210-R45.46-SDMS, Los Angeles, CA

Built 1970 ADT: 8,600

GOLDEN VALLEY ROAD

Over: STATE ROUTE 14

07-LA-014-R29.28, Los Angeles, CA

Built 1972 ADT: 142,000

STATE ROUTE 210

Over: WALNUT AVENUE

07-LA-210-R45.71-SDMS, Los Angeles, CA

Built 1970 ADT: 2,500

STATE ROUTE 210

Over: SAN DIMAS CYN RD

07-LA-210-R46.21-SDMS, Los Angeles, CA

Built 1970 ADT: 5,500

INTERSTATE 210

Over: GLENDORA AVENUE

07-LA-210-R42.10-GDR, Los Angeles, CA

Built 1970 ADT: 12,500

STATE ROUTE 210

Over: STATE ROUTE 66

07-LA-210-R46.61-LVN, Los Angeles, CA

Built 1970 ADT: 18,200

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

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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