US Bridges

Main Lease RD over LA Cienega Boulevard

Good

Los Angeles County, California · 1.3MI N/O Slauson Ave · Structure no. 53C0619

Built
1952
73 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
159 ft
3 main spans
Daily traffic
1,594
2014 count
Owner
County
County Highway Agency

About this bridge

Main Lease RD over LA Cienega Boulevard is a concrete continuous tee beam carrying Main Lease RD over LA Cienega Boulevard 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 1,594 vehicles a day, roughly 4% of them trucks, projected to reach 1,753 by 2044. The structure is 159 ft (48.5 m) long and 38 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMain Lease RD
CrossesLA Cienega Boulevard
Location1.3MI N/O Slauson Ave
RouteCounty Highway 0L130
Coordinates34.00529, -118.37337
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.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length159 ft (48.5 m)
Longest span90 ft (27.5 m)
Deck width38 ft (11.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,594 (2014)
Projected traffic1,753 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Main Lease RD over LA Cienega Boulevard built?

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

What condition is Main Lease RD over LA Cienega Boulevard 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 August 2024.

How much traffic does Main Lease RD over LA Cienega Boulevard carry?

About 1,594 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is Main Lease RD over LA Cienega Boulevard?

The structure is 159 ft (48.5 m) long with a longest span of 90 ft (27.5 m) and a deck 38 ft wide.

Who owns Main Lease RD over LA Cienega Boulevard?

It is owned by the County Highway Agency.