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)

STATE ROUTE 1

Good

Over: LAS FLORES CREEK

07-LA-001-44.15-MAL, Los Angeles, CA

Built 1926 Load: 42.8 t ADT: 43,250

STATE ROUTE 14

Good

Over: LOST CANYON ROAD UC

07-LA-014-32.53-SCTA, Los Angeles, CA

Built 1963 Load: 42.8 t ADT: 113,000

INTERSTATE 210

Good

Over: S BR BIG TUJUNGA WASH

07-LA-210-R10.53-LA, Los Angeles, CA

Built 1980 Load: 42.8 t ADT: 113,000

LANZIT AVE

Good

Over: COMPTON CREEK

0.1 MI W CENTRAL AVE, Los Angeles, CA

Built 1953 Load: 42.8 t ADT: 2,200

LASSEN ST

Good

Over: BULL CREEK

0.1 MI E HAYVENHURST AVE, Los Angeles, CA

Built 1956 Load: 42.8 t ADT: 21,100

U.S. HIGHWAY 101

Good

Over: WILBUR AVE

07-LA-101-21.76-LA, Los Angeles, CA

Built 1959 Load: 43.1 t ADT: 229,000

ROUTE 5

Good

Over: PENROSE STREET

07-LA-005-34.28-LA, Los Angeles, CA

Built 1961 Load: 43.1 t ADT: 4,320

INTERSTATE 605

Good

Over: WALNUT CREEK

07-LA-605-R19.85-BWP, Los Angeles, CA

Built 1957 Load: 43.1 t ADT: 237,090

SIERRE MADRE AVE

Good

Over: BIG DALTON WASH

0.5MI E/O LORAINE AVE, Los Angeles, CA

Built 1968 Load: 43.1 t ADT: 5,605

THURMAN AVE

Good

Over: BALLONA CREEK

0.2 MI N WASHINGTON BLVD, Los Angeles, CA

Built 1974 Load: 43.1 t ADT: 2,462

HARBOR PLZ DR E

Good

Over: UPRR

200FT W/O PICO AVE, Los Angeles, CA

Built 1994 Load: 43.1 t ADT: 8,971

STATE ROUTE 91

Good

Over: UP RR, MTA BLUE LINE

07-LA-091-R9.97-COM, Los Angeles, CA

Built 1974 Load: 43.4 t ADT: 206,000

LARK ELLEN AVE

Good

Over: BIG DALTON WASH

0.4MI E/O ARROW HWY, Los Angeles, CA

Built 1960 Load: 43.4 t ADT: 16,640

CAMERON AVE

Good

Over: WALNUT CRK

300FT N/O SUNSET AVE, Los Angeles, CA

Built 1962 Load: 43.4 t ADT: 15,158

OCEAN VIEW BLVD

Good

Over: HALLS CYN CHAN

0.3MI S/O FOOTHILL BLVD, Los Angeles, CA

Built 1936 Load: 43.4 t ADT: 16,230

LAS FLORES CYN RD

Good

Over: LAS FLORES CRK

0.5MI N/O SR-1 HWY, Los Angeles, CA

Built 1996 Load: 43.4 t ADT: 1,572

INTERSTATE 405

Good

Over: VAN OWEN STREET

07-LA-405-41.86-LA, Los Angeles, CA

Built 1963 Load: 43.5 t ADT: 220,000

INTERSTATE 5

Good

Over: GORMAN CREEK

07-LA-005-R80.79, Los Angeles, CA

Built 1967 Load: 43.7 t ADT: 35,890

STATE ROUTE 2 EB

Good

Over: ROSEBUD AVE

07-LA-002-14.84-LA, Los Angeles, CA

Built 1962 Load: 43.7 t ADT: 30,500

VIA MARISOL

Good

Over: ARROYO SECO

50 FT E OF SR 110, Los Angeles, CA

Built 1940 Load: 43.7 t ADT: 9,500

BARRANCA AVE

Good

Over: SAN DIMAS WASH BRIDGE

0.1MI S/O ARROW HWY, Los Angeles, CA

Built 1959 Load: 43.7 t ADT: 18,485

MERCED AVE

Good

Over: WALNUT CRK

60FT W/O ORANGE AVE, Los Angeles, CA

Built 1961 Load: 43.7 t ADT: 11,726

ORANGE AVE

Good

Over: WALNUT CRK

50FT N/O MERCED AVE, Los Angeles, CA

Built 1961 Load: 43.7 t ADT: 25,633

AVE SCOTT

Good

Over: SAN FRANCISQUITO CYN CH

0.1MI W/O MCBEAN PRKWY, Los Angeles, CA

Built 2001 Load: 43.7 t ADT: 15,735

INTERSTATE 10

Good

Over: CHARTER OAK WASH

07-LA-010-37.61-WCOV, Los Angeles, CA

Built 1934 Load: 44.1 t ADT: 223,000

INTERSTATE 10

Good

Over: WALNUT CREEK CHANNEL

07-LA-010-38.32-WCOV, Los Angeles, CA

Built 1932 Load: 44.1 t ADT: 223,000

W2-S5 CONNECTOR RA

Good

Over: RIPPLE STREET

07-LA-002-15.32-LA, Los Angeles, CA

Built 1961 Load: 44.1 t ADT: 34,700

E FRK RD

Good

Over: GRAVEYARD CYN CRK

2.7MI E/O SAN GABRL CN RD, Los Angeles, CA

Built 1942 Load: 44.1 t ADT: 2,000

TEMPLE AVE

Good

Over: SAN JOSE CRK

0.3MI W/O VALLEY BLVD, Los Angeles, CA

Built 1961 Load: 44.1 t ADT: 29,900

LONGDEN AVE

Good

Over: EATON WASH

0.5MI E/O SN GABRIEL BLVD, Los Angeles, CA

Built 1957 Load: 44.1 t ADT: 4,386

FULTON AVE

Good

Over: LOS ANGELES RIVER

VLYHT DR N & VLYHT DR S, Los Angeles, CA

Built 1951 Load: 44.1 t ADT: 12,400

STATE ROUTE 27

Good

Over: SANTA SUSANA CREEK

07-LA-027-17.01-LA, Los Angeles, CA

Built 1964 Load: 44.4 t ADT: 35,250

INTERSTATE 405

Good

Over: NORDHOFF STREET

07-LA-405-44.74-LA, Los Angeles, CA

Built 1963 Load: 44.4 t ADT: 216,000

WILEY CYN RD

Good

Over: PICO CYN CHAN

1MI N/O LYONS AVE, Los Angeles, CA

Built 1971 Load: 44.4 t ADT: 19,468

PALLETT CRK RD

Good

Over: EVANS WASH

0.1MI S/O BIG PINES HWY, Los Angeles, CA

Built 1949 Load: 44.4 t ADT: 102

SAN MRTNZ GRAN CYN

Good

Over: SAN MRTNZ GRANDE CYN CRK

1.8MI N/O SR-126 HWY, Los Angeles, CA

Built 1949 Load: 44.4 t ADT: 204

CORBIN AVE

Good

Over: LIMEKILM CHANNEL

0.2 MI N NORDOFF ST, Los Angeles, CA

Built 1964 Load: 44.4 t ADT: 54,215

CULVER BLVD

Good

Over: SEPULVEDA CHANNEL

0.35 MI SW FWY405, Los Angeles, CA

Built 1951 Load: 44.4 t ADT: 19,145

URBANDALE AVE

Good

Over: BOUQUET CYN CHAN

0.3MI N/O BOUQUET CYN RD, Los Angeles, CA

Built 1966 Load: 44.4 t ADT: 4,896

Baseline Road

Good

Over: Thompson Creek

0.1 MI NORTH OF 210, Los Angeles, CA

Built 1998 Load: 44.4 t ADT: 24,624

LOWER AZUSA RD

Good

Over: EATON WASH

0.5MI E/O ROSEMEAD BLVD, Los Angeles, CA

Built 1956 Load: 44.7 t ADT: 10,609

CENTURION WAY

Good

Over: BOUQUET CYN CHAN

0.2MI NW/O BOUQUET CYN RD, Los Angeles, CA

Built 1975 Load: 44.7 t ADT: 19,902

DECORO DR

Good

Over: SAN FRANCISQUITO CRK

0.3MI W/O MCBEAN PKWY, Los Angeles, CA

Built 2003 Load: 44.7 t ADT: 13,802

LA TIJERA BLVD

Good

Over: CENTINELA CREEK

50FT E/O ROUTE I-405, Los Angeles, CA

Built 1936 Load: 45.0 t ADT: 30,500

VICTORY BLVD

Good

Over: BELL CREEK (S FORK)

0.1 MI E/O PLATT AVE, Los Angeles, CA

Built 1959 Load: 45.0 t ADT: 27,000

AVE H

Good

Over: CALIFORNIA AQUEDUCT

1.0MI S/O LANCASTER RD, Los Angeles, CA

Built 1967 Load: 45.0 t ADT: 101

FAURE AVE

Good

Over: SAN JOSE CRK

0.5MI S/O VALLEY, Los Angeles, CA

Built 2003 Load: 45.0 t ADT: 32,208

INTERSTATE 405

Good

Over: CONSTITUTION AVE

07-LA-405-31.90, Los Angeles, CA

Built 1957 Load: 45.3 t ADT: 283,000

ROUTE 10 EB

Good

Over: ALHAMBRA WASH

07-LA-010-25.50-RSMD, Los Angeles, CA

Built 1953 Load: 45.4 t ADT: 106,250

S405-N&S101 CONN

Good

Over: LOS ANGELES RIVER

07-LA-405-39.65-LA, Los Angeles, CA

Built 1958 Load: 45.4 t ADT: 42,500

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