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:

STATE ROUTE 60

Over: FULLERTON RD

07-LA-060-19.46-IDY, Los Angeles, CA

Built 1967 ADT: 33,600

STATE ROUTE 60

Over: LEMON AVE

07-LA-060-R22.38-DMBR, Los Angeles, CA

Built 1970 ADT: 11,500

STATE ROUTE 60

Over: FAIRWAY DR

07-LA-060-R21.48-IDY, Los Angeles, CA

Built 1969 ADT: 15,000

AZUSA AVE

Over: STATE ROUTE 60

07-LA-060-17.97, Los Angeles, CA

Built 1967 ADT: 212,000

STATE ROUTE 134

Over: LA RIV,UPRR,METRO,AMTRAK

07-LA-134-R5.67-LA, Los Angeles, CA

Built 1967 ADT: 900

W134-N&S5 CONNECTR

Over: L A RIV,RTES 5&134,UP RR

07-LA-134-R5.67-LA, Los Angeles, CA

Built 1967 ADT: 267,125

BARREL SPRG RD OC

Over: CALIFORNIA AQUEDUCT,RT14

07-LA-014-R57.37, Los Angeles, CA

Built 1966 ADT: 80,000

WELDON CANYON OC

Over: INTERSTATE 5

07-LA-005-R46.58, Los Angeles, CA

Built 1967 ADT: 194,158

INTERSTATE 5 SB

Over: W138-S5 CONNECTOR RAMP

07-LA-005-R81.47, Los Angeles, CA

Built 1967 ADT: 2,660

INTERSTATE 5 NB

Over: W138-S5 CONNECTOR RAMP

07-LA-005-R81.47, Los Angeles, CA

Built 1967 ADT: 2,660

ROUTE 5 SB

Over: S5-E138 CONNECTOR RAMP

07-LA-005-R82.08, Los Angeles, CA

Built 1967 ADT: 2,660

INTERSTATE 5 NB

Over: S5-E138 CONNECTOR RAMP

07-LA-005-R82.08, Los Angeles, CA

Built 1967 ADT: 2,660

S5-E138 CONNECTOR

Over: W138-S5 CONNECTOR RAMP

07-LA-005-R81.77, Los Angeles, CA

Built 1967 ADT: 650

PEDESTRIAN WALKWAY

Over: INTERSTATE 5

07-LA-005-9.15-DNY, Los Angeles, CA

Built 1982 ADT: 237,660

NOGALES ST

Over: STATE ROUTE 60

07-LA-060-20.43, Los Angeles, CA

Built 1970 ADT: 204,000

HONOR RANCHO RD

Over: ROUTE 5

07-LA-005-R56.12, Los Angeles, CA

Built 1968 ADT: 134,090

PEDESTRIAN WALKWAY

Over: STATE ROUTE 60

07-LA-060-16.55, Los Angeles, CA

Built 1967 ADT: 222,000

INTERSTATE 210

Over: MYRTLE AVENUE

07-LA-210-R33.91-MNRO, Los Angeles, CA

Built 1966 ADT: 13,000

INTERSTATE 210

Over: MOUNTAIN AVENUE

07-LA-210-R34.74-MNRO, Los Angeles, CA

Built 1966 ADT: 7,000

INTERSTATE 210

Over: BUENA VISTA STREET

07-LA-210-R35.24-DRT, Los Angeles, CA

Built 1966 ADT: 9,000

INTERSTATE 210

Over: HIGHLAND AVENUE

07-LA-210-R35.87-DRT, Los Angeles, CA

Built 1964 ADT: 3,000

STATE ROUTE 118

Over: SR 27(TOPANGA CANYON BL)

07-LA-118-R1.78-LA, Los Angeles, CA

Built 1968 ADT: 46,813

CENTURY BLVD

Over: ROUTE 1

07-LA-001-26.91-LA, Los Angeles, CA

Built 1966 ADT: 57,000

CENTURY BLVD

Over: ROUTE 1

07-LA-001-26.90-LA, Los Angeles, CA

Built 1966 ADT: 28,900

SR 138 (AVENUE D)

Over: STATE ROUTE 14

07-LA-138-36.85, Los Angeles, CA

Built 1968 ADT: 33,500

AVENUE "A"

Over: ROUTE 14

07-LA-014-R77.00, Los Angeles, CA

Built 1968 ADT: 37,500

N405-W90 CONNECTOR

Over: E90-N405 CONN,I 405,RMPS

07-LA-405-25.99-CLC, Los Angeles, CA

Built 1967 ADT: 14,003

STATE ROUTE 60

Over: OLD BREA CYN RD

07-LA-060-R22.97-DMBR, Los Angeles, CA

Built 1970 ADT: 31,000

E60-S57 CONNECTOR

Over: GOLDEN SPRINGS DRIVE

07-LA-060-R23.31-DMBR, Los Angeles, CA

Built 1972 ADT: 21,000

N57-W60 CONNECTOR

Over: SR 57,SR 60,GLDN SPR DRN

07-LA-057-R4.32R-DMBR, Los Angeles, CA

Built 1972 ADT: 15,000

WARDLOW RD

Over: INTERSTATE 605

07-LA-605-R0.79-LBCH, Los Angeles, CA

Built 1966 ADT: 209,000

STATE ROUTE 90

Over: ROUTE 405 & CITY STREETS

07-LA-090-2.54-CLC, Los Angeles, CA

Built 1968 ADT: 150,000

S405-E90 CONN OC

Over: I405, JEFFERSON, RAMPS

07-LA-405-25.91-LA, Los Angeles, CA

Built 1967 ADT: 10,000

E90-S405 CONNECTOR

Over: JEFFERSON BLVD

07-LA-090-2.58-LA, Los Angeles, CA

Built 1967 ADT: 154,000

E90-N405 CONNECTOR

Over: ROUTES 90 & 405,SLAUSON,

07-LA-090-2.55-CLC, Los Angeles, CA

Built 1967 ADT: 154,000

W90-N405 CONNECTOR

Over: JEFFERSON BLVD

07-LA-090-2.73-CLC, Los Angeles, CA

Built 1967 ADT: 54,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 10

07-LA-010S-19.98-LA, Los Angeles, CA

Built 1966 ADT: 13,700

AVENUE "B"

Over: ROUTE 14

07-LA-014-R76.01, Los Angeles, CA

Built 1968 ADT: 37,500

AVENUE "C"

Over: ROUTE 14

07-LA-014-R75.01, Los Angeles, CA

Built 1968 ADT: 37,500

AVENUE "E"

Over: ROUTE 14

07-LA-014-R73.00, Los Angeles, CA

Built 1968 ADT: 40,000

AVENUE "G"

Over: ROUTE 14

07-LA-014-R70.99-LAN, Los Angeles, CA

Built 1968 ADT: 42,000

AVENUE "F"

Over: ROUTE 14

07-LA-014-R72.00, Los Angeles, CA

Built 1968 ADT: 40,000

AVENUE "H"

Over: ROUTE 14

07-LA-014-R69.99-LAN, Los Angeles, CA

Built 1968 ADT: 43,500

GRAND AVE

Over: STATE ROUTE 60

07-LA-060-R24.45-DMBR, Los Angeles, CA

Built 1970 ADT: 223,000

WILMINGTON AVE

Over: STATE ROUTE 91

07-LA-091-R9.15-COM, Los Angeles, CA

Built 1974 ADT: 205,000

INTERSTATE 210

Over: HUNTINGTON DRIVE

07-LA-210-R32.89-MNRO, Los Angeles, CA

Built 1967 ADT: 12,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 5

07-LA-005-14.57, Los Angeles, CA

Built 1967 ADT: 263,160

GLENDALE AVE

Over: STATE ROUTE 134 & RAMPS

07-LA-134-R7.87-GNDL, Los Angeles, CA

Built 1968 ADT: 234,000

LACMTA & BNSF RY

Over: INTERSTATE 210

07-LA-210-R38.35-AZU, Los Angeles, CA

Built 1968 ADT: 250,000

PEDESTRIAN WALKWAY

Over: STATE ROUTE 134 & RAMPS

07-LA-134-R8.04-GNDL, Los Angeles, CA

Built 1968 ADT: 234,000

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