US Bridges

Louise ST over State Route 134 & Ramps

Good

Los Angeles County, California · 07-LA-134-R7.26-GNDL · Structure no. 53 1750

Built
1968
57 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
230 ft
2 main spans
Daily traffic
7,800
2015 count
Owner
State
State Highway Agency

About this bridge

Louise ST over State Route 134 & Ramps is a concrete continuous box beam or girders - multiple carrying Louise ST over State Route 134 & Ramps in Los Angeles County, California. It was built in 1968, so it is 57 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 7,800 vehicles a day, roughly 1% of them trucks, projected to reach 8,200 by 2040. The structure is 230 ft (70 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLouise ST
CrossesState Route 134 & Ramps
Location07-LA-134-R7.26-GNDL
RouteCity Street 0Q410
Coordinates34.1567, -118.25279
Functional classUrban Local

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 inspectionNovember 2023
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 alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length230 ft (70 m)
Longest span119 ft (36.4 m)
Deck width68 ft (20.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2015)
Projected traffic8,200 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Louise ST over State Route 134 & Ramps built?

It was built in 1968, making it 57 years old in 2025.

What condition is Louise ST over State Route 134 & Ramps 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 November 2023.

How much traffic does Louise ST over State Route 134 & Ramps carry?

About 7,800 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Louise ST over State Route 134 & Ramps?

The structure is 230 ft (70 m) long with a longest span of 119 ft (36.4 m) and a deck 68 ft wide.

Who owns Louise ST over State Route 134 & Ramps?

It is owned by the State Highway Agency.