US Bridges

Main Street over S101-LOS Angeles ST Off

Good

Los Angeles County, California · 07-LA-101-0.95-LA · Structure no. 53 0758

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

About this bridge

Main Street over S101-LOS Angeles ST Off is a concrete box beam or girders - multiple carrying Main Street over S101-LOS Angeles ST Off 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 43 ft (13.1 m) long and 184 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMain Street
CrossesS101-LOS Angeles ST Off
Location07-LA-101-0.95-LA
RouteCity Street 0L043
Coordinates34.05521, -118.24043
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating55.3 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width184 ft (56.2 m)
Roadway width171 ft (52.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2021)
Projected traffic21,697 by 2041
Trucks2%
Lanes on structure5
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 Main Street over S101-LOS Angeles ST Off built?

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

What condition is Main Street over S101-LOS Angeles ST Off 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 Main Street over S101-LOS Angeles ST Off carry?

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

How long is Main Street over S101-LOS Angeles ST Off?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 184 ft wide.

Who owns Main Street over S101-LOS Angeles ST Off?

It is owned by the State Highway Agency.