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)

VALLEY BLVD

Good

Over: UP RR

NEAR EASTERN AVE, Los Angeles, CA

Built 2010 Load: 32.4 t ADT: 1,378

WORKMAN MILL RD

Good

Over: A RD

0.4MI E/O PECK RD, Los Angeles, CA

Built 2010 Load: 32.4 t ADT: 28,760

SIERRA OAK TRAIL

Good

Over: VIOLIN CYN CHAN

0.2MI W/O THE OLD RD, Los Angeles, CA

Built 1992 Load: 32.4 t ADT: 1,607

THE OLD RD

Good

Over: VIOLIN CYN CHAN

1.0MI N/O LAKE HUGHES RD, Los Angeles, CA

Built 1992 Load: 32.4 t ADT: 1,607

CASTAIC RD

Good

Over: UNKNOWN CHAN

0.2 S/O RIDGE ROUTE RD, Los Angeles, CA

Built 1993 Load: 32.4 t ADT: 500

AVE O

Good

Over: AMARGOSA CRK

0.5MI E/O 10TH ST W, Los Angeles, CA

Built 2011 Load: 32.4 t ADT: 7,171

UNION ST

Good

Over: METRO

145FT W/O ARROYO PKWY, Los Angeles, CA

Built 2003 Load: 32.4 t ADT: 6,868

GREEN ST

Good

Over: METRO

180FT W/O ARROYO PKWY, Los Angeles, CA

Built 2003 Load: 32.4 t ADT: 9,494

NEWHALL AVE

Good

Over: ELSMERE CREEK

125FEET S/O SIERRA HWY, Los Angeles, CA

Built 1969 Load: 32.4 t ADT: 34,814

Baseline Road

Good

Over: Marshall Creek Channel

0.2 M E/O WHEELER AVE, Los Angeles, CA

Built 1966 Load: 32.4 t ADT: 24,624

CORRAL CANYON

Good

Over: SOLSTICE CREEK

974FT N/O PAC CST HWY, Los Angeles, CA

Built 2008 Load: 32.4 t ADT: 1,572

Ramona Street

Good

Over: UPRR

1.1 MILE N/O VALLEY BLVD., Los Angeles, CA

Built 2016 Load: 32.4 t ADT: 18,656

Mission Road

Good

Over: UPRR

1.1 MILE N/O VALLEY BLVD, Los Angeles, CA

Built 2016 Load: 32.4 t ADT: 22,260

Del Mar Ave.

Good

Over: UPRR

1.2 M. N/O VALLEY, Los Angeles, CA

Built 2016 Load: 32.4 t ADT: 24,380

San Gabriel Blvd

Good

Over: UPRR

1.1 MILE N/OVALLEY BLVD, Los Angeles, CA

Built 2016 Load: 32.4 t ADT: 32,542

RIVERSIDE DRIVE

Good

Over: LOS ANGELES RV (RR)

0.3M W/O W. AVE 26, Los Angeles, CA

Built 2017 Load: 32.4 t ADT: 1,200

ROUTE 187

Good

Over: EAST COMEY AVE DRAIN

BTWN COMEY & DAUPHIN, Los Angeles, CA

Built 1927 Load: 32.4 t ADT: 42,250

Valencia Blvd

Good

Over: Golf Course

.075 MI W/O THE OLD RD., Los Angeles, CA

Built 2007 Load: 32.4 t ADT: 30,894

Valencia Blvd

Good

Over: Golf Course

.5 ML W/O THE OLD ROAD, Los Angeles, CA

Built 2007 Load: 32.4 t ADT: 30,894

DEL MAR AVE

Good

Over: ALHAMBRA WASH

0.2MI S/O VALLEY BLVD, Los Angeles, CA

Built 2020 Load: 32.4 t ADT: 24,380

MULHOLLAND HWY

Good

Over: TRIUNFO CREEK

0.5 MILES E/O KANAN RD, Los Angeles, CA

Built 2021 Load: 32.4 t ADT: 1,020

LOST CANYON RD

Good

Over: LA METRO AND UPRR

1 MILE N/O VIA PRINCESSA, Los Angeles, CA

Built 2003 Load: 32.4 t ADT: 5,000

CHANTRY FLAT ROAD

Good

Over: ROCK SLIDE

4.5MI N/O 210FWY, Los Angeles, CA

Built 2022 Load: 32.4 t ADT: 250

INTERSTATE 405

Good

Over: 223RD STREET OH

07-LA-405-8.19-LBCH, Los Angeles, CA

Built 1961 Load: 32.6 t ADT: 237,800

S405-IMPERIAL HWY

Good

Over: LENNOX BLVD

07-LA-405-21.74-LA, Los Angeles, CA

Built 1989 Load: 32.6 t ADT: 40,000

IMPERIAL HWY-N405

Good

Over: LENNOX BLVD

07-LA-405-21.74-LA, Los Angeles, CA

Built 1989 Load: 32.6 t ADT: 62,400

U.S. HIGHWAY 101

Good

Over: ENCINO EQUESTRIAN UC

07-LA-101-18.51-LA, Los Angeles, CA

Built 1958 Load: 32.6 t ADT: 296,000

INTERSTATE 405

Good

Over: LASSEN STREET

07-LA-405-45.74-LA, Los Angeles, CA

Built 1963 Load: 32.6 t ADT: 216,000

GRAND AVE

Good

Over: TRANSIT TUNNEL

BETW. 3RD ST & 4TH ST, Los Angeles, CA

Built 1982 Load: 32.6 t ADT: 8,212

STATE ROUTE 1

Good

Over: BIKEWAY

07-LA-001-23.79-MANB, Los Angeles, CA

Built 1930 Load: 32.7 t ADT: 60,000

INTERSTATE 210

Good

Over: LITTLE TUJUNGA WASH

07-LA-210-R8.28-LA, Los Angeles, CA

Built 1980 Load: 32.7 t ADT: 113,000

HACIENDA BLVD

Good

Over: SAN JOSE CRK

6.0MI N/O WHITTIER BL, Los Angeles, CA

Built 1964 Load: 32.7 t ADT: 41,856

BOUQUET CYN RD SX

Good

Over: BOUQUET CYN CRK

0.8MI N/O SOLEDAD CYN RD, Los Angeles, CA

Built 1972 Load: 32.7 t ADT: 53,590

CANDLEWOOD ST

Good

Over: DOWNEY AVE DRN

200FT E/O DOWNEY AVE, Los Angeles, CA

Built 1960 Load: 32.7 t ADT: 14,639

TUJUNGA AVE

Good

Over: LOS ANGELES RIVER

BTWN DILING ST & VNTRA B, Los Angeles, CA

Built 1949 Load: 32.7 t ADT: 20,856

PALM DR

Good

Over: ARCADIA WASH

0.1MI E/O EL MONTE AVE, Los Angeles, CA

Built 1955 Load: 32.7 t ADT: 1,224

GROVE ST

Good

Over: THOMPSON CRK

0.3MI W/O GAREY AVE, Los Angeles, CA

Built 1965 Load: 32.7 t ADT: 1,500

HERMOSA AVE

Good

Over: PICKENS CYN CHAN

0.1MI W/O ROSEMONT AVE, Los Angeles, CA

Built 1935 Load: 32.7 t ADT: 1,020

FS RD 3N24.1

Good

Over: BIG TUJUNGA CREEK

2.0 MI S.OF ANGELES F.HWY, Los Angeles, CA

Built 1947 Load: 32.7 t ADT: 10

25TH STREET ENTRY

Good

Over: DRAINAGE DITCH

0.1 miles north of 25th S, Los Angeles, CA

Built 1954 Load: 32.7 t ADT: 40

STATE ROUTE 1

Good

Over: ALAMITOS BAY

07-LA-001-0.98-LBCH, Los Angeles, CA

Built 1959 Load: 33.0 t ADT: 38,000

INTERSTATE 10

Good

Over: EATON WASH

07-LA-010-27.85-EMTE, Los Angeles, CA

Built 1956 Load: 33.0 t ADT: 104,700

INTERSTATE 5 NB

Good

Over: METROLINK,UP RR,AMTRAK,

07-LA-005-28.70-BRB, Los Angeles, CA

Built 1959 Load: 33.0 t ADT: 119,510

ROUTE 605 NB

Good

Over: LACMTA & BNSF RY

07-LA-605-25.55-IRW, Los Angeles, CA

Built 1970 Load: 33.0 t ADT: 67,000

N605-W210 CONN

Good

Over: LACMTA & BNSF RY

07-LA-605-25.56-IRW, Los Angeles, CA

Built 1970 Load: 33.0 t ADT: 38,000

INTERSTATE 210

Good

Over: FOOTHILL BLVD

07-LA-210-R7.82-LA, Los Angeles, CA

Built 1980 Load: 33.0 t ADT: 113,000

STATE ROUTE 14

Good

Over: LANCASTER BLVD

07-LA-014-R68.46-LAN, Los Angeles, CA

Built 1972 Load: 33.0 t ADT: 25,500

PECK RD

Good

Over: SAW PIT WASH

0.3MI S/O LIVE OAK AVE, Los Angeles, CA

Built 1960 Load: 33.0 t ADT: 26,124

FAIRFAX AVE

Good

Over: BALLONA CREEK

0.13 MI S/O VENICE BLVD, Los Angeles, CA

Built 1962 Load: 33.0 t ADT: 42,000

AGUA DULCE CYN RD

Good

Over: ESCONDIDO CYN WASH

0.2MI S/O SR-14 FWY, Los Angeles, CA

Built 1962 Load: 33.0 t ADT: 320

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