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:

ZACHARY PADILLA AV

Over: ROUTE 210

07-LA-210-R38.58-AZU, Los Angeles, CA

Built 1968 ADT: 250,000

IRWINDALE AVENUE

Over: ROUTE 210

07-LA-210-R37.86-IRW, Los Angeles, CA

Built 1968 ADT: 266,000

INTERSTATE 210

Over: MAYFLOWER AVENUE

07-LA-210-R33.40-MNRO, Los Angeles, CA

Built 1967 ADT: 3,500

INTERSTATE 210

Over: S AZUSA AVE

07-LA-210-R39.58-AZU, Los Angeles, CA

Built 1968 ADT: 23,500

AZUSA-E210 ON RAMP

Over: S AZUSA AVE

07-LA-210-R39.58-AZU, Los Angeles, CA

Built 1968 ADT: 23,500

VERNON AVENUE

Over: ROUTE 210

07-LA-210-R38.96-AZU, Los Angeles, CA

Built 1968 ADT: 250,000

INTERSTATE 210

Over: COLORADO,2ND,SANTA ANITA

07-LA-210-R32.20-ADA, Los Angeles, CA

Built 1968 ADT: 15,500

INTERSTATE 210

Over: FIRST AVENUE

07-LA-210-R32.08-ADA, Los Angeles, CA

Built 1968 ADT: 4,000

INTERSTATE 210

Over: SANTA ANITA AVENUE

07-LA-210-R31.88-ADA, Los Angeles, CA

Built 1968 ADT: 29,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 210

07-LA-210-R35.07-DRT, Los Angeles, CA

Built 1967 ADT: 258,000

MOUNTAIN ST

Over: SR 2

07-LA-002-R20.05-GNDL, Los Angeles, CA

Built 1975 ADT: 115,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 210

07-LA-210-R3.57-LA, Los Angeles, CA

Built 1969 ADT: 76,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 210

07-LA-210-R4.70-LA, Los Angeles, CA

Built 1969 ADT: 76,000

STATE ROUTE 60

Over: DIAMOND BAR

07-LA-060-R25.56-DMBR, Los Angeles, CA

Built 1970 ADT: 7,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 210

07-LA-210-R39.12-AZU, Los Angeles, CA

Built 1968 ADT: 250,000

HARVEY DRIVE

Over: S2-W134 CONNECTOR RAMP

07-LA-002-R18.92-GNDL, Los Angeles, CA

Built 1967 ADT: 14,700

I 5 SB

Over: I 5 & CASTAIC ROAD

07-LA-005-R59.95L, Los Angeles, CA

Built 1969 ADT: 36,657

I 5 NB

Over: I 5 SB

07-LA-005-R64.49R, Los Angeles, CA

Built 1970 ADT: 36,657

ROUTE 60

Over: E60-N57 CONNECTOR RAMP

07-LA-060-R25.45-DMBR, Los Angeles, CA

Built 1970 ADT: 131,000

E134-2 CONNECTOR

Over: ROUTES 134 & 2,3 STREETS

07-LA-134-R8.57-GNDL, Los Angeles, CA

Built 1967 ADT: 250,000

PARKER RD

Over: ROUTE 5

07-LA-005-R59.01, Los Angeles, CA

Built 1968 ADT: 74,354

INTERSTATE 210 WB

Over: BALDWIN AVENUE

07-LA-210-R30.82-ADA, Los Angeles, CA

Built 1971 ADT: 25,000

INTERSTATE 210 EB

Over: BALDWIN AVENUE

07-LA-210-R30.82-ADA, Los Angeles, CA

Built 1971 ADT: 25,000

HUNTINGTON DR-E210

Over: ROUTE 210

07-LA-210-R36.38-IRW, Los Angeles, CA

Built 1968 ADT: 6,000

SR 2

Over: COLORADO BLVD

07-LA-002-R18.52-LA, Los Angeles, CA

Built 1976 ADT: 18,000

E2-E134 CONNECTOR

Over: COLORADO BLVD

07-LA-002-R18.52-LA, Los Angeles, CA

Built 1976 ADT: 18,000

ROUTE 2

Over: BROADWAY UC

07-LA-002-R18.65-LA, Los Angeles, CA

Built 1976 ADT: 21,420

W134-S2 CONNECTOR

Over: RTE 2,BROADWAY,COLORADO

07-LA-134-R9.04-LA, Los Angeles, CA

Built 1976 ADT: 12,000

STATE ROUTE 134

Over: STATE ROUTE 2 & RAMP

07-LA-134-R8.96-LA, Los Angeles, CA

Built 1971 ADT: 148,125

HARVEY-E2 ON RAMP

Over: STATE ROUTE 2 & RAMP

07-LA-134-R8.97-LA, Los Angeles, CA

Built 1971 ADT: 18,285

E2-W134 CONNECTOR

Over: ROUTE 2 & CONNECTOR RAMP

07-LA-002-R18.82-LA, Los Angeles, CA

Built 1971 ADT: 8,841

W2-E134 CONNECTOR

Over: ROUTES 134 & 2, & CONNS

07-LA-002-R18.81-LA, Los Angeles, CA

Built 1971 ADT: 18,261

MACARTHUR

Over: INTERSTATE 110

07-LA-110-R1.06-LA, Los Angeles, CA

Built 1970 ADT: 30,000

INTERSTATE 605 SB

Over: ROUTE 210

07-LA-605-25.75-IRW, Los Angeles, CA

Built 1968 ADT: 258,000

INTERSTATE 605 NB

Over: ROUTE 210

07-LA-605-25.75-IRW, Los Angeles, CA

Built 1968 ADT: 258,000

INTERSTATE 210 WB

Over: ROXFORD STREET

07-LA-210-R1.92-LA, Los Angeles, CA

Built 1969 ADT: 4,200

INTERSTATE 210 EB

Over: ROXFORD STREET

07-LA-210-R1.92-LA, Los Angeles, CA

Built 1969 ADT: 4,200

PEDESTRIAN WALKWAY

Over: INTERSTATE 210

07-LA-210-R3.01-LA, Los Angeles, CA

Built 1969 ADT: 76,000

BLEDSOE ST OC

Over: INTERSTATE 210

07-LA-210-R2.74-LA, Los Angeles, CA

Built 1969 ADT: 82,000

SAYRE ST OC

Over: INTERSTATE 210

07-LA-210-R3.84-LA, Los Angeles, CA

Built 1969 ADT: 76,000

HUBBARD ST

Over: INTERSTATE 210

07-LA-210-R4.11-LA, Los Angeles, CA

Built 1969 ADT: 76,000

STATE ROUTE 57

Over: VALLEY BLVD

07-LA-057-R7.14-POM, Los Angeles, CA

Built 1972 ADT: 10,000

STATE ROUTE 14

Over: SIERRA HWY

07-LA-014-R25.13, Los Angeles, CA

Built 1971 ADT: 6,699

S14-S 5 TRUCK CONN

Over: SIERRA HWY

07-LA-014-R25.13, Los Angeles, CA

Built 1971 ADT: 6,999

N5TRUCK-N14

Over: SIERRA HWY

07-LA-005S-C45.74-LA, Los Angeles, CA

Built 1971 ADT: 3,642

INTERSTATE 110

Over: CHANNEL ST & UP RR SPUR

07-LA-110-R1.25-LA, Los Angeles, CA

Built 1970 ADT: 30,000

S110-GAFFEY ST OFF

Over: UP RR SPUR & CHANNEL ST

07-LA-110-R1.25-LA, Los Angeles, CA

Built 1970 ADT: 30,000

STATE ROUTE 134

Over: W134-W2 CONNECTOR RAMP

07-LA-134-R9.08-LA, Los Angeles, CA

Built 1971 ADT: 28,642

STATE ROUTE 57

Over: POMONA BLVD

07-LA-057-R6.82-POM, Los Angeles, CA

Built 1972 ADT: 10,000

E2-E134 CONNECTOR

Over: BROADWAY

07-LA-002-R18.64-LA, Los Angeles, CA

Built 1976 ADT: 23,400

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 6, 2026