US Bridges

Jackson ST over State Route 134

Good

Los Angeles County, California · 07-LA-134-R7.40-GNDL · Structure no. 53 1751

Built
1965
60 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
191 ft
2 main spans
Daily traffic
4,900
2017 count
Owner
State
State Highway Agency

About this bridge

Jackson ST over State Route 134 is a concrete continuous box beam or girders - multiple carrying Jackson ST over State Route 134 in Los Angeles County, California. It was built in 1965, so it is 60 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 4,900 vehicles a day, roughly 2% of them trucks, projected to reach 7,418 by 2042. The structure is 191 ft (58.2 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesJackson ST
CrossesState Route 134
Location07-LA-134-R7.40-GNDL
RouteCity Street 0Q411
Coordinates34.15664, -118.25038
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 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 rating53.6 US tons
Inventory rating41.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length191 ft (58.2 m)
Longest span95 ft (29 m)
Deck width68 ft (20.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2017)
Projected traffic7,418 by 2042
Trucks2%
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 Jackson ST over State Route 134 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Jackson ST over State Route 134 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 Jackson ST over State Route 134 carry?

About 4,900 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Jackson ST over State Route 134?

The structure is 191 ft (58.2 m) long with a longest span of 95 ft (29 m) and a deck 68 ft wide.

Who owns Jackson ST over State Route 134?

It is owned by the State Highway Agency.