US Bridges

Alameda Ave over State Route 134 & Onramp

Fair

Los Angeles County, California · 07-LA-134-2.03-BRB · Structure no. 53 1278

Built
1962
63 years old, rebuilt 2011
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
365 ft
3 main spans
Daily traffic
40,200
2015 count
Owner
State
State Highway Agency

About this bridge

Alameda Ave over State Route 134 & Onramp is a concrete continuous box beam or girders - multiple carrying Alameda Ave over State Route 134 & Onramp in Los Angeles County, California. It was built in 1962 and reconstructed in 2011, so it is 63 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 40,200 vehicles a day, roughly 1% of them trucks, projected to reach 48,742 by 2040. The structure is 365 ft (111.4 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesAlameda Ave
CrossesState Route 134 & Onramp
Location07-LA-134-2.03-BRB
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.15405, -118.34102
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length365 ft (111.4 m)
Longest span145 ft (44.2 m)
Deck width94 ft (28.7 m)
Roadway width80 ft (24.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,200 (2015)
Projected traffic48,742 by 2040
Trucks1%
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 Alameda Ave over State Route 134 & Onramp built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2011.

What condition is Alameda Ave over State Route 134 & Onramp in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Alameda Ave over State Route 134 & Onramp carry?

About 40,200 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Alameda Ave over State Route 134 & Onramp?

The structure is 365 ft (111.4 m) long with a longest span of 145 ft (44.2 m) and a deck 94 ft wide.

Who owns Alameda Ave over State Route 134 & Onramp?

It is owned by the State Highway Agency.