US Bridges

Downey RD over Los Angeles Riv

Fair

Los Angeles County, California · 0.8MI E/O Soto ST · Structure no. 53C0576

Built
1931
94 years old, rebuilt 1979
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
523 ft
13 main spans
Daily traffic
25,265
2017 count
Owner
County
County Highway Agency

About this bridge

Downey RD over Los Angeles Riv is a steel stringer/multi-beam or girder carrying Downey RD over Los Angeles Riv in Los Angeles County, California. It was built in 1931 and reconstructed in 1979, so it is 94 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 25,265 vehicles a day, roughly 10% of them trucks, projected to reach 30,318 by 2042. The structure is 523 ft (159.4 m) long and 75 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesDowney RD
CrossesLos Angeles Riv
Location0.8MI E/O Soto ST
RouteCounty Highway 0L338
CountyLos Angeles County
StateCalifornia
Coordinates34.00643, -118.20479
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans13
Design loadUnknown
Structure length523 ft (159.4 m)
Longest span40 ft (12.2 m)
Deck width75 ft (22.8 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,265 (2017)
Projected traffic30,318 by 2042
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Downey RD over Los Angeles Riv built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1979.

What condition is Downey RD over Los Angeles Riv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Downey RD over Los Angeles Riv carry?

About 25,265 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Downey RD over Los Angeles Riv?

The structure is 523 ft (159.4 m) long with a longest span of 40 ft (12.2 m) and a deck 75 ft wide.

Who owns Downey RD over Los Angeles Riv?

It is owned by the County Highway Agency.