Los Angeles County, CA

3,937 public highway bridges

Los Angeles County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Los Angeles County, California contains 3,937 public highway bridges. Roughly 34.3% are rated “Good,” 17.1% “Fair,” and 2.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

3,937
Total Bridges
34.3%
Good
17.1%
Fair
2.2%
Poor Condition

Condition Distribution

Good
34.3% (1,350)
Fair
17.1% (675)
Poor
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.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.