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:

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.

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