US Bridges

Los Angeles ST over Route 101

Good

Los Angeles County, California · 07-LA-101-0.87-LA · Structure no. 53 0629

Built
1950
75 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
128 ft
2 main spans
Daily traffic
16,000
2021 count
Owner
State
State Highway Agency

About this bridge

Los Angeles ST over Route 101 is a concrete continuous box beam or girders - multiple carrying Los Angeles ST over Route 101 in Los Angeles County, California. It was built in 1950, so it is 75 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 16,000 vehicles a day, roughly 2% of them trucks, projected to reach 21,697 by 2041. The structure is 128 ft (39 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLos Angeles ST
CrossesRoute 101
Location07-LA-101-0.87-LA
RouteCity Street 0L331
Coordinates34.05486, -118.23938
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.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating55.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length128 ft (39 m)
Longest span62 ft (18.9 m)
Deck width100 ft (30.5 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2021)
Projected traffic21,697 by 2041
Trucks2%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Los Angeles ST over Route 101 built?

It was built in 1950, making it 75 years old in 2025.

What condition is Los Angeles ST over Route 101 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 April 2023.

How much traffic does Los Angeles ST over Route 101 carry?

About 16,000 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Los Angeles ST over Route 101?

The structure is 128 ft (39 m) long with a longest span of 62 ft (18.9 m) and a deck 100 ft wide.

Who owns Los Angeles ST over Route 101?

It is owned by the State Highway Agency.