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)

INTERSTATE 405

Good

Over: OHIO AVENUE

07-LA-405-31.05-LA, Los Angeles, CA

Built 1959 Load: 32.4 t ADT: 283,000

INTERSTATE 5

Good

Over: BUENA VISTA ST,WINONA AV

07-LA-005-31.23-BRB, Los Angeles, CA

Built 1960 Load: 32.4 t ADT: 239,020

N5-E&W118 CONNECTR

Good

Over: PAXTON STREET

07-LA-005-39.05-LA, Los Angeles, CA

Built 1976 Load: 32.4 t ADT: 55,945

INTERSTATE 5

Good

Over: METROLINK,UP RR,SAN FERN

07-LA-005-34.58-LA, Los Angeles, CA

Built 1961 Load: 32.4 t ADT: 187,358

INTERSTATE 405

Good

Over: UP RR

07-LA-405-20.18-HAW, Los Angeles, CA

Built 1963 Load: 32.4 t ADT: 260,800

INTERSTATE 405

Good

Over: CENTINELA CREEK

07-LA-405-25.54-CLC, Los Angeles, CA

Built 1963 Load: 32.4 t ADT: 294,000

INTERSTATE 405

Good

Over: WESTWOOD FLOOD CTRL CH

07-LA-405-28.61-LA, Los Angeles, CA

Built 1959 Load: 32.4 t ADT: 296,000

INTERSTATE 5

Good

Over: GOLF CREEK

07-LA-005-25.55-LA, Los Angeles, CA

Built 1957 Load: 32.4 t ADT: 264,292

INTERSTATE 10

Good

Over: FAIRGROVE STORM DRAIN

07-LA-010-31.94-BWP, Los Angeles, CA

Built 1956 Load: 32.4 t ADT: 230,000

INTERSTATE 10

Good

Over: VINELAND ST STORM DRN

07-LA-010-32.85-BWP, Los Angeles, CA

Built 1956 Load: 32.4 t ADT: 209,000

INTERSTATE 10

Good

Over: W BIG DALTON AVE STM DRN

07-LA-010-33.05-BWP, Los Angeles, CA

Built 1956 Load: 32.4 t ADT: 209,000

INTERSTATE 10

Good

Over: BIG DALTON AVE STORM DRN

07-LA-010-33.09-BWP, Los Angeles, CA

Built 1956 Load: 32.4 t ADT: 209,000

INTERSTATE 10

Good

Over: MEEKER AVE STORM DRAIN

07-LA-010-34.00-WCOV, Los Angeles, CA

Built 1956 Load: 32.4 t ADT: 215,000

INTERSTATE 10

Good

Over: GLENDORA STORM DRAIN

07-LA-010-35.81-WCOV, Los Angeles, CA

Built 1956 Load: 32.4 t ADT: 215,000

RAMP/CONNECTOR 5

Good

Over: BURBANK WESTERN CHANNEL

07-LA-005-31.35-BRB, Los Angeles, CA

Built 1960 Load: 32.4 t ADT: 9,996

INTERSTATE 405

Good

Over: PORT ROAD

07-LA-405-26.29-CLC, Los Angeles, CA

Built 1960 Load: 32.4 t ADT: 296,000

STATE ROUTE 71

Good

Over: PHILADELPHIA ST STM DRN

07-LA-071-R3.88-POM, Los Angeles, CA

Built 1958 Load: 32.4 t ADT: 77,000

INTERSTATE 405

Good

Over: BEL AIR CREST RD NORTH

07-LA-405-35.81-LA, Los Angeles, CA

Built 1962 Load: 32.4 t ADT: 274,000

U.S. HIGHWAY 101

Good

Over: RUBIO AVE STORM DRAIN

07-LA-101-18.69-LA, Los Angeles, CA

Built 1958 Load: 32.4 t ADT: 296,000

INTERSTATE 5

Good

Over: EAST CANYON CHANNEL

07-LA-005-40.53-LA, Los Angeles, CA

Built 1963 Load: 32.4 t ADT: 156,373

INTERSTATE 110

Good

Over: 138TH STREET STORM DRAIN

07-LA-110-12.17-LA, Los Angeles, CA

Built 1960 Load: 32.4 t ADT: 253,000

INTERSTATE 710

Good

Over: LAGUNA CHANNEL

07-LA-710-26.12-MONP, Los Angeles, CA

Built 1961 Load: 32.4 t ADT: 185,000

FIRESTONE-S605 RMP

Good

Over: UP RR, DOWNEY-NORWALK RD

07-LA-605-R8.23-NRW, Los Angeles, CA

Built 1993 Load: 32.4 t ADT: 2,600

N605-FIRESTONE RMP

Good

Over: UP RR, DOWNEY-NORWALK RD

07-LA-605-R8.23-NRW, Los Angeles, CA

Built 1990 Load: 32.4 t ADT: 2,600

ROUTE 5

Good

Over: BURBANK WEST CHANNEL

07-LA-005-30.00-BRB, Los Angeles, CA

Built 1960 Load: 32.4 t ADT: 239,016

INTERSTATE 110

Good

Over: GALAVAN STORM DRAIN

07-LA-110-5.90-LA, Los Angeles, CA

Built 1962 Load: 32.4 t ADT: 199,500

INTERSTATE 5 SB

Good

Over: CALGROVE BLVD

07-LA-005-R49.03-SCTA, Los Angeles, CA

Built 1967 Load: 32.4 t ADT: 97,478

INTERSTATE 5 NB

Good

Over: CALGROVE BLVD

07-LA-005-R49.03-SCTA, Los Angeles, CA

Built 1967 Load: 32.4 t ADT: 97,478

STATE ROUTE 14

Good

Over: WARD WASH

07-LA-014-46.60, Los Angeles, CA

Built 1963 Load: 32.4 t ADT: 97,000

INTERSTATE 210

Good

Over: MAGNOLIA AVENUE

07-LA-210-R33.67-MNRO, Los Angeles, CA

Built 1966 Load: 32.4 t ADT: 258,000

INTERSTATE 210

Good

Over: DUNCANNON AVENUE

07-LA-210-R35.52-DRT, Los Angeles, CA

Built 1966 Load: 32.4 t ADT: 258,000

INTERSTATE 10

Good

Over: SAN JOSE WASH

07-LA-010-44.84-POM, Los Angeles, CA

Built 1963 Load: 32.4 t ADT: 247,000

INTERSTATE 605

Good

Over: SAN JOSE CREEK CHANNEL

07-LA-605-R15.70-PRV, Los Angeles, CA

Built 1964 Load: 32.4 t ADT: 251,000

INTERSTATE 605

Good

Over: ROSE HILLS CHANNEL

07-LA-605-R15.37-IDY, Los Angeles, CA

Built 1964 Load: 32.4 t ADT: 251,000

INTERSTATE 10

Good

Over: CHARITON ST STORM DRAIN

07-LA-010-R8.78-LA, Los Angeles, CA

Built 1964 Load: 32.4 t ADT: 268,000

INTERSTATE 5

Good

Over: NEWHALL RANCH DRAIN

07-LA-005-R55.28, Los Angeles, CA

Built 1964 Load: 32.4 t ADT: 134,090

INTERSTATE 210

Good

Over: MONTEREY AVENUE

07-LA-210-R33.10-MNRO, Los Angeles, CA

Built 1967 Load: 32.4 t ADT: 258,000

STATE ROUTE 14

Good

Over: ACTON CANYON WASH

07-LA-014-R49.00, Los Angeles, CA

Built 1965 Load: 32.4 t ADT: 98,000

STATE ROUTE 14

Good

Over: RED ROVER WASH

07-LA-014-R47.20, Los Angeles, CA

Built 1965 Load: 32.4 t ADT: 98,000

E134-W2 CONNECTOR

Good

Over: BROADWAY

07-LA-134-R8.95-LA, Los Angeles, CA

Built 1976 Load: 32.4 t ADT: 25,852

STATE ROUTE 14

Good

Over: MOUNTAIN SPRINGS WASH

07-LA-014-R53.61, Los Angeles, CA

Built 1965 Load: 32.4 t ADT: 105,000

STATE ROUTE 210

Good

Over: SAN DIMAS CHANNEL

07-LA-210-R44.43-GDR, Los Angeles, CA

Built 1970 Load: 32.4 t ADT: 191,000

INTERSTATE 10

Good

Over: KELLOGG DRIVE

07-LA-010-42.10-POM, Los Angeles, CA

Built 1972 Load: 32.4 t ADT: 209,000

INTERSTATE 605 NB

Good

Over: SANTA FE FLOOD BASIN

07-LA-605-25.09-IRW, Los Angeles, CA

Built 1970 Load: 32.4 t ADT: 67,000

INTERSTATE 210

Good

Over: LITTLE DALTON WASH

07-LA-210-R39.80-AZU, Los Angeles, CA

Built 1969 Load: 32.4 t ADT: 250,000

N14-NEWHALL WB OFF

Good

Over: NEWHALL AVENUE

07-LA-014-R27.04, Los Angeles, CA

Built 1971 Load: 32.4 t ADT: 1,500

STATE ROUTE 14

Good

Over: AVENUE S DRAIN

07-LA-014-R58.10, Los Angeles, CA

Built 1966 Load: 32.4 t ADT: 80,000

STATE ROUTE 14

Good

Over: AVENUE Q DRAIN

07-LA-014-R60.50-PMDL, Los Angeles, CA

Built 1966 Load: 32.4 t ADT: 89,000

SR 138 (PALMDALE)

Good

Over: RAILROAD DITCH

07-LA-138-44.36-PMDL, Los Angeles, CA

Built 1960 Load: 32.4 t ADT: 23,500

ROUTE 118

Good

Over: BORDEN AVE

07-LA-118-R13.44-LA, Los Angeles, CA

Built 1975 Load: 32.4 t ADT: 115,000

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