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:

LA TIJERA BLVD

Over: ROUTE 405

07-LA-405-24.27-LA, Los Angeles, CA

Built 1963 ADT: 266,000

S710-E10 CONNECTOR

Over: I 710, I 10, SCRRA, BNSF

07-LA-710-R26.57-MONP, Los Angeles, CA

Built 1965 ADT: 500

INTERSTATE 405

Over: 213TH STREET

07-LA-405-10.88-CRSN, Los Angeles, CA

Built 1961 ADT: 3,900

PEDESTRIAN WALKWAY

Over: U.S. HIGHWAY 101

07-LA-101-19.50-LA, Los Angeles, CA

Built 1958 ADT: 296,000

STATE ROUTE 134

Over: VINELAND AVENUE

07-LA-134-0.35-LA, Los Angeles, CA

Built 1962 ADT: 18,950

STATE ROUTE 134

Over: LANKERSHIM BLVD

07-LA-134-0.51-LA, Los Angeles, CA

Built 1962 ADT: 26,000

STATE ROUTE 134

Over: CAHUENGA BLVD

07-LA-134-0.86-LA, Los Angeles, CA

Built 1962 ADT: 16,800

STATE ROUTE 134

Over: LEDGE AVE

07-LA-134-1.11-LA, Los Angeles, CA

Built 1962 ADT: 1,450

STATE ROUTE 134

Over: FORMAN AVE

07-LA-134-1.36-LA, Los Angeles, CA

Built 1962 ADT: 4,975

PASS AVE

Over: STATE ROUTE 134 & ONRAMP

07-LA-134-1.82-BRB, Los Angeles, CA

Built 1962 ADT: 216,000

ALAMEDA AVE

Over: STATE ROUTE 134 & ONRAMP

07-LA-134-2.03-BRB, Los Angeles, CA

Built 1962 ADT: 209,000

HOLLYWOOD WAY

Over: STATE ROUTE 134 & RAMPS

07-LA-134-2.11-BRB, Los Angeles, CA

Built 1962 ADT: 213,000

OLIVE AVE

Over: STATE ROUTE 134, OFFRAMP

07-LA-134-2.24-BRB, Los Angeles, CA

Built 1962 ADT: 213,000

CALIFORNIA STREET

Over: STATE ROUTE 134

07-LA-134-2.39-BRB, Los Angeles, CA

Built 1962 ADT: 213,000

STATE ROUTE 134

Over: BOB HOPE DRIVE

07-LA-134-2.67-BRB, Los Angeles, CA

Built 1962 ADT: 13,000

STATE ROUTE 134

Over: RIVERSIDE DR & ON-RAMP

07-LA-134-2.90-BRB, Los Angeles, CA

Built 1962 ADT: 20,110

S710-S405 CONNECTR

Over: ROUTE 710 & CONNECTORS

07-LA-710-9.38-LBCH, Los Angeles, CA

Built 1961 ADT: 169,000

STATE ROUTE 134

Over: FOREST LAWN DRIVE

07-LA-134-3.81-LA, Los Angeles, CA

Built 1962 ADT: 10,700

RIVERSIDE DRIVE

Over: STATE ROUTE 134

07-LA-134-4.81-LA, Los Angeles, CA

Built 1962 ADT: 23,400

PEDESTRIAN WALKWAY

Over: U.S. HIGHWAY 101

07-LA-101-19.99-LA, Los Angeles, CA

Built 1959 ADT: 296,000

BURBANK BLVD

Over: I 405

07-LA-405-40.29-LA, Los Angeles, CA

Built 1963 ADT: 220,000

111TH PLACE

Over: I 110

07-LA-110-14.18-LA, Los Angeles, CA

Built 1989 ADT: 300,000

RTE 10 & RAMPS

Over: RTE 110 & 29 STREETS

07-LA-010-14.23-LA, Los Angeles, CA

Built 1959 ADT: 1,000

BARRANCA ST

Over: INTERSTATE 10, RAMPS

07-LA-010-38.01-WCOV, Los Angeles, CA

Built 1975 ADT: 223,000

U.S. HIGHWAY 101

Over: COLFAX AVE

07-LA-101-12.35-LA, Los Angeles, CA

Built 1959 ADT: 11,000

CESAR E. CHAVEZ AV

Over: INTERSTATE 5

07-LA-005-18.06-LA, Los Angeles, CA

Built 1959 ADT: 241,740

U.S. HIGHWAY 101

Over: LAUREL CANYON BLVD

07-LA-101-12.85-LA, Los Angeles, CA

Built 1959 ADT: 25,000

I 5

Over: S5-E10 CONNECTOR RAMP

07-LA-005-18.38-LA, Los Angeles, CA

Built 1959 ADT: 35,190

S5 - E10 CONNECTOR

Over: MISSION RD - S5 ON RAMP

07-LA-005-18.62-LA, Los Angeles, CA

Built 1959 ADT: 9,078

INTERSTATE 110

Over: INTERSTATE 10 WB

07-LA-110-21.45-LA, Los Angeles, CA

Built 1959 ADT: 243,000

INTERSTATE 110

Over: W10-S110 CONNECTOR RAMP

07-LA-110-21.48-LA, Los Angeles, CA

Built 1959 ADT: 267,100

GRIDLEY ROAD

Over: STATE ROUTE 91

07-LA-091-R17.57-CRTS, Los Angeles, CA

Built 1968 ADT: 30,600

STATE ST ON-R OC

Over: CONN NB 5 TO EB 10

07-LA-005-18.37-LA, Los Angeles, CA

Built 1959 ADT: 44,370

S5-STATE ST OFF RA

Over: W10-S5 CONNECTOR RAMP

07-LA-005-18.31-LA, Los Angeles, CA

Built 1959 ADT: 38,760

SOTO STREET

Over: ROUTE 60 WB

07-LA-060-0.38-LA, Los Angeles, CA

Built 1960 ADT: 91,700

STATE STREET

Over: RTE 10 & CONN

07-LA-010-18.59-LA, Los Angeles, CA

Built 1959 ADT: 30,000

RTE 5/10 SEP

Over: I 10 & OFF-RAMP

07-LA-005-18.42-LA, Los Angeles, CA

Built 1959 ADT: 2,040

S5-E10 CONNECTOR R

Over: ROUTE 10

07-LA-005-18.47-LA, Los Angeles, CA

Built 1959 ADT: 96,000

W10-S5 CONNECTOR

Over: INTERSTATE 10

07-LA-010-S0.55-LA, Los Angeles, CA

Built 1959 ADT: 254,000

S5-E10 CONNECTOR R

Over: CONN, BUSWAY, METROLINK

07-LA-005-18.53-LA, Los Angeles, CA

Built 1959 ADT: 5,000

INTERSTATE 5

Over: CONN, BUSWAY, METROLINK

07-LA-005-18.52-LA, Los Angeles, CA

Built 1959 ADT: 5,300

W10-N5 CONN

Over: CONN, BUSWAY, METROLINK

07-LA-010-18.41-LA, Los Angeles, CA

Built 1959 ADT: 16,500

STATE ROUTE 91

Over: NORWALK BLVD

07-LA-091-R18.67-CRTS, Los Angeles, CA

Built 1968 ADT: 29,500

STATE ROUTE 91

Over: PIONEER BLVD

07-LA-091-R18.09-ART, Los Angeles, CA

Built 1968 ADT: 29,400

U.S. HIGHWAY 101

Over: ROUTE 170

07-LA-101-11.75R-LA, Los Angeles, CA

Built 1959 ADT: 4,391

US HIGHWAY 101 SB

Over: TUJUNGA AVE

07-LA-101-11.83L-LA, Los Angeles, CA

Built 1959 ADT: 7,500

RTE 134

Over: ROUTES 101 & 170, RNERSD

07-LA-101-11.63L-LA, Los Angeles, CA

Built 1959 ADT: 160,000

ROUTE 170

Over: RIVERSIDE-TUJUNGA

07-LA-170-R14.78-LA, Los Angeles, CA

Built 1962 ADT: 8,600

W134-N101 CONNECTR

Over: RIVERSIDE DR

07-LA-134-0.04-LA, Los Angeles, CA

Built 1962 ADT: 14,000

STATE STREET

Over: ROUTE 5

07-LA-005-18.25-LA, Los Angeles, CA

Built 1959 ADT: 226,000

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

Related

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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