US Bridges

Route 105 & Lrt over State Street

Good

Los Angeles County, California · 07-LA-105-R11.10-LYN · Structure no. 53 2662

Built
1987
38 years old, rebuilt 1988
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
170 ft
2 main spans
Daily traffic
237,000
2020 count
Owner
State
State Highway Agency

About this bridge

Route 105 & Lrt over State Street is a concrete continuous box beam or girders - multiple carrying Route 105 & Lrt over State Street in Los Angeles County, California. It was built in 1987 and reconstructed in 1988, so it is 38 years old, younger 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 237,000 vehicles a day, roughly 7% of them trucks, projected to reach 239,080 by 2041. The structure is 170 ft (51.8 m) long and 188 ft wide.

CarriesRoute 105 & Lrt
CrossesState Street
Location07-LA-105-R11.10-LYN
RouteInterstate 105
Coordinates33.92795, -118.21748
Functional classUrban Principal Arterial - Interstate

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 inspectionMay 2024
Inspection intervalevery 24 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 alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length170 ft (51.8 m)
Longest span85 ft (25.9 m)
Deck width188 ft (57.3 m)
Roadway width141 ft (43.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic237,000 (2020)
Projected traffic239,080 by 2041
Trucks7%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 105 & Lrt over State Street built?

It was built in 1987, making it 38 years old in 2025. It was reconstructed in 1988.

What condition is Route 105 & Lrt over State Street 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 May 2024.

How much traffic does Route 105 & Lrt over State Street carry?

About 237,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Route 105 & Lrt over State Street?

The structure is 170 ft (51.8 m) long with a longest span of 85 ft (25.9 m) and a deck 188 ft wide.

Who owns Route 105 & Lrt over State Street?

It is owned by the State Highway Agency.