US Bridges

Moorpark Street over Los Angeles River

Good

Los Angeles County, California · 0.25 MI E/O Woodman Ave. · Structure no. 53C1709

Built
1952
73 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
166 ft
1 main span
Daily traffic
25,300
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Moorpark Street over Los Angeles River is a concrete box beam or girders - multiple carrying Moorpark Street over Los Angeles River in Los Angeles County, California. It was built in 1952, so it is 73 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25,300 vehicles a day, roughly 2% of them trucks, projected to reach 37,193 by 2044. The structure is 166 ft (50.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMoorpark Street
CrossesLos Angeles River
Location0.25 MI E/O Woodman Ave.
RouteCity Street 0
Coordinates34.15019, -118.42391
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating65 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length166 ft (50.6 m)
Longest span150 ft (45.7 m)
Deck width47 ft (14.2 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,300 (2018)
Projected traffic37,193 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Moorpark Street over Los Angeles River built?

It was built in 1952, making it 73 years old in 2025.

What condition is Moorpark Street over Los Angeles River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Moorpark Street over Los Angeles River carry?

About 25,300 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Moorpark Street over Los Angeles River?

The structure is 166 ft (50.6 m) long with a longest span of 150 ft (45.7 m) and a deck 47 ft wide.

Who owns Moorpark Street over Los Angeles River?

It is owned by the City or Municipal Highway Agency.