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:

CESAR CHAVEZ AV

Over: RTE 10, CONN, BUSWAY

07-LA-010-S0.10-LA, Los Angeles, CA

Built 1906 ADT: 5,000

STATE ROUTE 1

Over: CLASSIFICATION RD

07-LA-001-8.43-LA, Los Angeles, CA

Built 1948 ADT: 26,500

METROLINK

Over: ST RTE 110 & ARROYO SECO

07-LA-110-26.40-LA, Los Angeles, CA

Built 1940 ADT: 134,800

PASADENA AVE

Over: ST RTE 110 & ARROYO SECO

07-LA-110-26.48-LA, Los Angeles, CA

Built 1940 ADT: 16,500

AVENUE 43

Over: ST RTE 110 & ARROYO SECO

07-LA-110-27.12-LA, Los Angeles, CA

Built 1939 ADT: 132,000

AVENUE 52

Over: STATE ROUTE 110

07-LA-110-28.05-LA, Los Angeles, CA

Built 1939 ADT: 132,000

VIA MARISOL

Over: STATE ROUTE 110

07-LA-110-28.38-LA, Los Angeles, CA

Built 1939 ADT: 132,000

AVENUE 60

Over: STATE ROUTE 110

07-LA-110-28.76-LA, Los Angeles, CA

Built 1939 ADT: 132,000

METROLINK

Over: STATE ROUTE 110

07-LA-110-29.03-LA, Los Angeles, CA

Built 1900 ADT: 134,800

ARROYO DRIVE

Over: STATE ROUTE 110

07-LA-110-30.30-SPAS, Los Angeles, CA

Built 1938 ADT: 130,000

GRAND AVENUE

Over: STATE ROUTE 110

07-LA-110-30.43-SPAS, Los Angeles, CA

Built 1938 ADT: 132,000

ORANGE GROVE AVE

Over: STATE ROUTE 110

07-LA-110-30.59-SPAS, Los Angeles, CA

Built 1939 ADT: 132,000

PROSPECT AVE

Over: STATE ROUTE 110

07-LA-110-30.70-SPAS, Los Angeles, CA

Built 1939 ADT: 135,000

MERIDIAN AVNUE

Over: STATE ROUTE 110

07-LA-110-30.78-SPAS, Los Angeles, CA

Built 1940 ADT: 66,000

FREMONT AVENUE

Over: STATE ROUTE 110

07-LA-110-31.01-SPAS, Los Angeles, CA

Built 1940 ADT: 66,000

METROLINK

Over: STATE ROUTE 110

07-LA-110-31.03-SPAS, Los Angeles, CA

Built 1940 ADT: 66,000

FAIR OAKS AVENUE

Over: STATE ROUTE 110

07-LA-110-31.17-SPAS, Los Angeles, CA

Built 1940 ADT: 66,000

STATE ROUTE 60

Over: FORD BLVD

07-LA-060-R3.30, Los Angeles, CA

Built 1967 ADT: 5,264

MARMION WAY

Over: STATE ROUTE 110

07-LA-110-29.28-LA, Los Angeles, CA

Built 1940 ADT: 132,000

3RD ST-W60 ON-RAMP

Over: 3RD STREET

07-LA-060-R2.54, Los Angeles, CA

Built 1965 ADT: 18,050

BARHAM BLVD

Over: ROUTE 101

07-LA-101-9.22-LA, Los Angeles, CA

Built 1940 ADT: 272,014

PILGRIMAGE OC

Over: ROUTE 101

07-LA-101-8.05-LA, Los Angeles, CA

Built 1940 ADT: 154,000

WHITSETT AVE

Over: ROUTE 170

07-LA-170-R18.65-LA, Los Angeles, CA

Built 1968 ADT: 175,000

STATE ROUTE 110 SB

Over: AMADOR STREET

07-LA-110-25.04L-LA, Los Angeles, CA

Built 1942 ADT: 6,500

ROUTE 2 WB

Over: ROUTE 5, RIVERSIDE DR

07-LA-002-14.98-LA, Los Angeles, CA

Built 1961 ADT: 225,710

ROUTE 2 EB

Over: ROUTE 5, RIVERSIDE DR

07-LA-002-14.98-LA, Los Angeles, CA

Built 1961 ADT: 7,758

STATE ROUTE 110 SB

Over: N110-FIGUEROA ST OFF-RMP

07-LA-110-25.78-LA, Los Angeles, CA

Built 1940 ADT: 8,000

PEDESTRIAN WALKWAY

Over: SR 110,RAMPS,ARROYO SECO

07-LA-110-26.19-LA, Los Angeles, CA

Built 1961 ADT: 134,800

S110-HILL ST OFF

Over: STATE ROUTE 110 NB

07-LA-110-24.55R-LA, Los Angeles, CA

Built 1942 ADT: 210,000

STATE ROUTE 110 SB

Over: STADIUM WAY

07-LA-110-24.73L-LA, Los Angeles, CA

Built 1942 ADT: 1,100

STADIUM WAY

Over: STATE ROUTE 110 NB & RMP

07-LA-110-24.76R-LA, Los Angeles, CA

Built 1942 ADT: 99

PARK ROW DR

Over: STATE ROUTE 110 SB

07-LA-110-25.20L-LA, Los Angeles, CA

Built 1942 ADT: 183,000

ROUTE 101 SB

Over: MISSION RD-E10 ON-RAMP

07-LA-101-S1.28-LA, Los Angeles, CA

Built 1947 ADT: 49,150

ROUTE 101 NB

Over: MISSION RD-E10 ON-RAMP

07-LA-101-S1.28-LA, Los Angeles, CA

Built 1947 ADT: 49,150

S101-E10 CONNECTOR

Over: ROUTE 101 NBND

07-LA-101-S1.32-LA, Los Angeles, CA

Built 1944 ADT: 140,000

N5 W2 CONN

Over: E2 N5 CONNECTOR RAMP

07-LA-005-22.63-LA, Los Angeles, CA

Built 1961 ADT: 2,180

E2-S5 CONNECTOR RA

Over: RIVERSIDE DR,S5-OFF-RAMP

07-LA-002-14.95-LA, Los Angeles, CA

Built 1961 ADT: 137,000

FOURTH STREET

Over: ROUTE 101

07-LA-101-S0.62-LA, Los Angeles, CA

Built 1947 ADT: 140,000

ALPINE STREET

Over: STATE ROUTE 110

07-LA-110-23.96-LA, Los Angeles, CA

Built 1948 ADT: 156,000

SEVENTH STREET

Over: ROUTE 101

07-LA-101-S0.02-LA, Los Angeles, CA

Built 1948 ADT: 140,000

BOYLE AVE

Over: I- 5, N5-N101, S101-S5

07-LA-005-16.76-LA, Los Angeles, CA

Built 1947 ADT: 2,900

W60-N101 CONN

Over: SOTO STREET

07-LA-060-0.39-LA, Los Angeles, CA

Built 1960 ADT: 35,800

INTERSTATE 5

Over: ST RTE 60 W/B

07-LA-005-16.44-LA, Los Angeles, CA

Built 1948 ADT: 95,000

LORENA STREET

Over: ROUTE 5

07-LA-005-15.65-LA, Los Angeles, CA

Built 1947 ADT: 258,000

ESPERANZA STREET

Over: ROUTE 5

07-LA-005-15.33-LA, Los Angeles, CA

Built 1948 ADT: 258,000

OLYMPIC BLVD

Over: ROUTE 5

07-LA-005-14.16, Los Angeles, CA

Built 1951 ADT: 251,000

EASTERN AVE

Over: ROUTE 5 & CONN

07-LA-005-13.89-CMRC, Los Angeles, CA

Built 1951 ADT: 256,020

VERMONT AVE

Over: ROUTE 101

07-LA-101-4.40-LA, Los Angeles, CA

Built 1949 ADT: 175,000

U.S. HIGHWAY 1 101

Over: VIRGIL AVE

07-LA-101-4.08-LA, Los Angeles, CA

Built 1949 ADT: 43,966

U.S. HIGHWAY 101

Over: VIRGIL AVE

07-LA-101-4.08-LA, Los Angeles, CA

Built 1949 ADT: 43,986

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