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:

E10-S710 CONNECTOR

Over: RAMONA BLVD

07-LA-010-21.33-MONP, Los Angeles, CA

Built 1960 ADT: 11,200

ROUTE 710 SB

Over: RAMONA BLVD

07-LA-710-26.38-MONP, Los Angeles, CA

Built 1960 ADT: 12,800

ROUTE 710 NB

Over: RAMONA BLVD

07-LA-710-26.38-MONP, Los Angeles, CA

Built 1960 ADT: 12,800

ROUTE 5

Over: DUVALL ST-S5 & S110 ONRP

07-LA-005-20.94-LA, Los Angeles, CA

Built 1961 ADT: 4,600

N110-N5 CONNECTOR

Over: DUVALL ST-S5 & S110 RAMP

07-LA-005-20.94-LA, Los Angeles, CA

Built 1961 ADT: 2,500

ROUTE 5

Over: S5-ELMGROVE ST OFF RAMP

07-LA-005-20.99-LA, Los Angeles, CA

Built 1961 ADT: 2,450

N110-N5 CONNECTOR

Over: S5-ELMGROVE ST OFF-RAMP

07-LA-005-20.99-LA, Los Angeles, CA

Built 1961 ADT: 2,500

ST RTE 60 EB

Over: INTERSTATE 5 SB

07-LA-060-0.45-LA, Los Angeles, CA

Built 1960 ADT: 60,000

CENTRAL OUTFALL

Over: INTERSTATE 405

07-LA-405-23.52-ING, Los Angeles, CA

Built 1961 ADT: 2,000

MANCHESTER BLVD

Over: N405-LA CIENEGA OFF RAMP

07-LA-405-23.36-ING, Los Angeles, CA

Built 1961 ADT: 268,000

OLINDA STREET POC

Over: INTERSTATE 5

07-LA-005-33.98-LA, Los Angeles, CA

Built 1961 ADT: 183,000

STATE ROUTE 47

Over: SAN PEDRO TERMINAL ISL

07-LA-047-0.86, Los Angeles, CA

Built 1963 ADT: 22,500

WICKS STREET POC

Over: INTERSTATE 5

07-LA-005-35.63-LA, Los Angeles, CA

Built 1963 ADT: 187,358

N&S710-S405 CONNEC

Over: S405-PACIFIC PL OFF-RAMP

07-LA-710-9.20-LBCH, Los Angeles, CA

Built 1963 ADT: 3,053

SR 2

Over: GLENDALE BLVD

07-LA-002-14.21-LA, Los Angeles, CA

Built 1962 ADT: 6,000

N405-N710 CONNECTO

Over: APPIAN WAY-N405 ON-RAMP

07-LA-405-7.20-LBCH, Los Angeles, CA

Built 1963 ADT: 2,600

PECK ROAD

Over: ROUTE 605 & RAMP

07-LA-605-R16.65-IDY, Los Angeles, CA

Built 1963 ADT: 251,000

INTERSTATE 405

Over: WILLOW STREET

07-LA-405-3.01-LBCH, Los Angeles, CA

Built 1963 ADT: 2,000

LAKEWOOD-N405 O.RP

Over: LAKEWOOD BL N405 OFFRAMP

07-LA-405-3.20-LBCH, Los Angeles, CA

Built 1964 ADT: 10,000

MANCHESTER-N405 ON

Over: N405-LA CIENEGA OFF-RAMP

07-LA-405-23.32-ING, Los Angeles, CA

Built 1963 ADT: 19,500

W10-W187 (VENICE)

Over: FAIRFAX-W10, E10-FAIRFAX

07-LA-010-R9.22-LA, Los Angeles, CA

Built 1964 ADT: 4,115

BNSF, SCRRA METRO

Over: INTERSTATE 710

07-LA-710-R26.59-MONP, Los Angeles, CA

Built 1974 ADT: 400

E134-RIVERSIDE OFF

Over: US 101 NB & SR 170

07-LA-134-0.01-LA, Los Angeles, CA

Built 1959 ADT: 190,000

INTERSTATE 405

Over: DEVONSHIRE STREET

07-LA-405-46.24-LA, Los Angeles, CA

Built 1963 ADT: 15,146

INTERSTATE 405

Over: CHATSWORTH STREET

07-LA-405-46.74-LA, Los Angeles, CA

Built 1963 ADT: 9,075

INTERSTATE 605

Over: STATE ROUTE 72

07-LA-605-R13.55-WIT, Los Angeles, CA

Built 1964 ADT: 40,000

PEDESTRIAN WALKWAY

Over: INTERSTATE 405

07-LA-405-22.90-ING, Los Angeles, CA

Built 1963 ADT: 99

UTILITY OC

Over: ROUTE 405

07-LA-405-5.76-SIGH, Los Angeles, CA

Built 1963 ADT: 278,000

OLIVE ST-S405 ONRP

Over: S405-CENTURY BLVD OFF-RP

07-LA-405-22.55-ING, Los Angeles, CA

Built 1963 ADT: 24,500

CENTURY BL-N405 ON

Over: N405-MANCHESTER BL OFFRP

07-LA-405-22.53-ING, Los Angeles, CA

Built 1963 ADT: 15,001

PEDESTRIAN WALKWAY

Over: INTERSTATE 110

07-LA-110-7.20-LA, Los Angeles, CA

Built 1962 ADT: 199,500

220ST POC

Over: INTERSTATE 110

07-LA-110-6.76-CRSN, Los Angeles, CA

Built 1962 ADT: 178,900

INTERSTATE 10

Over: GRAND AVE

07-LA-010-38.51-WCOV, Los Angeles, CA

Built 1961 ADT: 23,200

OBREGON STREET

Over: INTERSTATE 605

07-LA-605-R13.98, Los Angeles, CA

Built 1964 ADT: 271,500

BEVERLY BLVD

Over: INTERSTATE 605

07-LA-605-R14.41-PRV, Los Angeles, CA

Built 1964 ADT: 27,100

ROSE HILLS ROAD

Over: INTERSTATE 605

07-LA-605-R15.57-PRV, Los Angeles, CA

Built 1964 ADT: 271,500

E60-N605 CONNECTOR

Over: INTERSTATE 605 & RAMP

07-LA-060-11.65-IDY, Los Angeles, CA

Built 1967 ADT: 47,500

STATE ROUTE 60

Over: INTERSTATE 605 & RAMPS

07-LA-060-11.67-IDY, Los Angeles, CA

Built 1967 ADT: 14,200

W60-S605 CONNECTOR

Over: INTERSTATE 605 & RAMP

07-LA-060-11.75-IDY, Los Angeles, CA

Built 1967 ADT: 34,500

INTERSTATE 605

Over: RIVERGRADE OH, VALLEY

07-LA-605-R19.39-IDY, Los Angeles, CA

Built 1964 ADT: 38,500

PEDESTRIAN WALKWAY

Over: INTERSTATE 5

07-LA-005-13.57-CMRC, Los Angeles, CA

Built 1961 ADT: 231,540

ESCONDIDO RD

Over: ROUTE 14

07-LA-014-43.29, Los Angeles, CA

Built 1963 ADT: 97,000

WARD ROAD

Over: ROUTE 14

07-LA-014-46.76, Los Angeles, CA

Built 1968 ADT: 98,000

SB I-5 (TRUCK)

Over: ROUTE 405

07-LA-005-41.55-LA, Los Angeles, CA

Built 1974 ADT: 144,864

SOLEDAD CANYON RD

Over: SOLEDAD CANYON RD

07-LA-014-35.71, Los Angeles, CA

Built 1963 ADT: 2,800

INTERSTATE 10

Over: MOTOR AVE

07-LA-010-R6.74-LA, Los Angeles, CA

Built 1964 ADT: 18,100

MANNING AV-E10 ON

Over: INTERSTATE 10

07-LA-010-R7.08-LA, Los Angeles, CA

Built 1964 ADT: 254,000

INTERSTATE 10

Over: NATIONAL BLVD

07-LA-010-R7.21-LA, Los Angeles, CA

Built 1964 ADT: 29,281

INTERSTATE 10

Over: ROBERTSON BL-W10 ON RAMP

07-LA-010-R7.83-LA, Los Angeles, CA

Built 1964 ADT: 16,001

INTERSTATE 10

Over: ROBERTSON BL NATIONAL BL

07-LA-010-R7.92-LA, Los Angeles, CA

Built 1964 ADT: 22,400

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