Los Angeles County, CA

3,937 public highway bridges

Los Angeles County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Los Angeles County, California contains 3,937 public highway bridges. Roughly 34.3% are rated “Good,” 17.1% “Fair,” and 2.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

3,937

Total Bridges

34.3%

Good

17.1%

Fair

2.2%

Poor Condition

Condition Distribution

Good

34.3% (1,350)

Fair

17.1% (675)

Poor

2.2% (88)

All Bridges (3,937)

Sort:

U.S. HIGHWAY 101

Over: COLDWATER CANYON AVE

07-LA-101-13.88-LA, Los Angeles, CA

Built 1959 ADT: 8,500

U.S. HIGHWAY 101

Over: WOODMAN AVE

07-LA-101-14.89-LA, Los Angeles, CA

Built 1959 ADT: 24,000

WHITTIER BLVD

Over: ROUTE 5 SB

07-LA-005-17.07-LA, Los Angeles, CA

Built 1960 ADT: 235,620

WHITTIER BLVD

Over: ROUTE 5 NB & E10-N5 CONN

07-LA-005-17.07-LA, Los Angeles, CA

Built 1960 ADT: 235,620

WHITTIER BL-N101

Over: ROUTE 5 SB

07-LA-101-S0.22-LA, Los Angeles, CA

Built 1960 ADT: 140,000

7TH STREET

Over: INTERSTATE 5 NB

07-LA-005-16.90-LA, Los Angeles, CA

Built 1960 ADT: 235,620

E10-N5 CONNECTOR

Over: 5, 101, CONNS, 7TH

07-LA-010-18.33-LA, Los Angeles, CA

Built 1960 ADT: 2,000

U.S. HIGHWAY 101

Over: LOS ANGELES RI,HAZELTINE

07-LA-101-15.38-LA, Los Angeles, CA

Built 1959 ADT: 7,500

NORTH BROADWAY

Over: ROUTE 5

07-LA-005-19.73-LA, Los Angeles, CA

Built 1960 ADT: 238,000

HUMBOLDT ST

Over: I 5 & CONN RAMPS

07-LA-005-20.12-LA, Los Angeles, CA

Built 1962 ADT: 225,000

U.S. HIGHWAY 101

Over: VAN NUYS BLVD

07-LA-101-15.91-LA, Los Angeles, CA

Built 1959 ADT: 26,000

PASADENA AVE

Over: ROUTE 5 & N5-N110 CONN

07-LA-005-19.86-LA, Los Angeles, CA

Built 1960 ADT: 238,000

S5&S101-E60 CONNEC

Over: W60-W10, SOTO ST, & RAMP

07-LA-005-16.59-LA, Los Angeles, CA

Built 1960 ADT: 42,000

EUCLID AVE ON-RAMP

Over: NB I 5 & CONM TO WB 60

07-LA-005-16.13-LA, Los Angeles, CA

Built 1960 ADT: 39,000

EUCLID AVE OFF-RAM

Over: SB INTERSTATE 5

07-LA-005-16.14-LA, Los Angeles, CA

Built 1960 ADT: 1,300

INTERSTATE 5 NB

Over: SOTO STREET

07-LA-005-16.59-LA, Los Angeles, CA

Built 1960 ADT: 34,800

INTERSTATE 5 SB

Over: ST RTE 60 WB, RAMPS,SOTO

07-LA-005-16.59-LA, Los Angeles, CA

Built 1960 ADT: 4,550

ST RTE 60 EB

Over: I-5, CONN, RAMP

07-LA-060-R0.63-LA, Los Angeles, CA

Built 1965 ADT: 250,000

E60-S5 CONNECTOR

Over: MARIETTA STREET

07-LA-060-R0.69-LA, Los Angeles, CA

Built 1960 ADT: 2,260

NB5-SOTO ST OFFRMP

Over: ST RTE 60 WB, WB60-NB101

07-LA-005-16.37-LA, Los Angeles, CA

Built 1960 ADT: 189,000

BOYLE AVE

Over: ROUTE 60 WB

07-LA-060-0.28-LA, Los Angeles, CA

Built 1960 ADT: 91,700

W60-N5 CONNECTOR

Over: SOTO ST OFF/ON RAMPS

07-LA-060-R0.60-LA, Los Angeles, CA

Built 1966 ADT: 11,300

ROUTE I-5 N/B

Over: W60, W60-N101 CON, RAMP

07-LA-005-16.36-LA, Los Angeles, CA

Built 1960 ADT: 50,100

MARIETTA ST

Over: ST RTE 60 WB & CONNS

07-LA-060-R0.73-LA, Los Angeles, CA

Built 1960 ADT: 189,000

PASADENA AV-N5 ON

Over: N5-N110 CONNECTOR RAMP

07-LA-005-20.00-LA, Los Angeles, CA

Built 1959 ADT: 12,400

METROLINK RAILROAD

Over: METROLINK

07-LA-005-20.26-LA, Los Angeles, CA

Built 1962 ADT: 20,000

L.A. TIMES SPUR UP

Over: W60-W10 CONN

07-LA-060-0.15-LA, Los Angeles, CA

Built 1960 ADT: 91,700

INTERSTATE 405

Over: ROSCOE BLVD

07-LA-405-43.76-LA, Los Angeles, CA

Built 1963 ADT: 6,500

INTERSTATE 5

Over: N BROADWAY OFF-RAMP

07-LA-005-19.50-LA, Los Angeles, CA

Built 1960 ADT: 3,300

OAK GLEN PL OC

Over: ROUTE 2

07-LA-002-14.46-LA, Los Angeles, CA

Built 1962 ADT: 61,500

UP RR

Over: INTERSTATE 605

07-LA-605-R14.08-PRV, Los Angeles, CA

Built 1964 ADT: 251,000

STATE RTE 14

Over: STATE RTE 138

07-LA-014-R59.78-PMDL, Los Angeles, CA

Built 1966 ADT: 33,250

N405-S710 CONN OC

Over: S405-S710 CONNECTOR RAMP

07-LA-405-7.55-LBCH, Los Angeles, CA

Built 1961 ADT: 15,000

S405-N710/710 SEP

Over: ROUTE 710 & CONNECTORS

07-LA-405-7.66-LBCH, Los Angeles, CA

Built 1961 ADT: 18,300

INTERSTATE 5

Over: SR 110 CON,ST,UP RR,RIV

07-LA-005-20.31-LA, Los Angeles, CA

Built 1962 ADT: 183,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 5

07-LA-005-19.43-LA, Los Angeles, CA

Built 1960 ADT: 238,680

STUDEBAKER RD

Over: ROUTE 22

07-LA-022-1.14-LBCH, Los Angeles, CA

Built 1959 ADT: 102,000

183RD ST

Over: STATE ROUTE 91

07-LA-091-R20.16-CRTS, Los Angeles, CA

Built 1969 ADT: 296,000

CARMENITA ROAD

Over: STATE ROUTE 91

07-LA-091-R20.45-CRTS, Los Angeles, CA

Built 1969 ADT: 296,000

BLOOMFIELD AVE

Over: STATE ROUTE 91

07-LA-091-R19.17-CRTS, Los Angeles, CA

Built 1968 ADT: 296,000

ARTESIA BLVD

Over: STATE ROUTE 91

07-LA-091-R19.43-CRTS, Los Angeles, CA

Built 1968 ADT: 255,000

LAS VIRGENES RD

Over: ROUTE 101

07-LA-101-31.05, Los Angeles, CA

Built 1962 ADT: 196,000

W10-CAMPUS DR OFF

Over: N&S710-W10 CONNECTOR RMP

07-LA-010-21.22-MONP, Los Angeles, CA

Built 1972 ADT: 219,000

ROUTE 710 SB

Over: ROUTE 10 & CONNECTORS

07-LA-710-26.47-MONP, Los Angeles, CA

Built 1960 ADT: 208,000

ROUTE 710 NB

Over: ROUTE 10 & CONNECTORS

07-LA-710-26.47-MONP, Los Angeles, CA

Built 1960 ADT: 25,000

PEDESTRIAN WALKWAY

Over: STATE ROUTE 60

07-LA-060-R3.60, Los Angeles, CA

Built 1967 ADT: 231,000

N710-E&W10 CONNECT

Over: I 710, I 10,CONNS,RAMONA

07-LA-710-T31.40-MONP, Los Angeles, CA

Built 1960 ADT: 215,000

INTERSTATE 405

Over: VICTORY BLVD

07-LA-405-41.36-LA, Los Angeles, CA

Built 1963 ADT: 25,000

W134-N170 CONNECTR

Over: RIVERSIDE DR

07-LA-134-0.03-LA, Los Angeles, CA

Built 1962 ADT: 14,100

S110-N&S5 CONNECTR

Over: ST RTE 110 & ARROYO SECO

07-LA-110-26.12-LA, Los Angeles, CA

Built 1962 ADT: 182,000

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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