US Bridges

Interstate 5 over Allen Avenue

Fair

Los Angeles County, California · 07-LA-005-28.14-GNDL · Structure no. 53 1081

Built
1957
68 years old, rebuilt 2014
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
65 ft
1 main span
Daily traffic
239,010
2018 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over Allen Avenue is a concrete tee beam carrying Interstate 5 over Allen Avenue in Los Angeles County, California. It was built in 1957 and reconstructed in 2014, so it is 68 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 6 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 239,010 vehicles a day, roughly 8% of them trucks, projected to reach 244,500 by 2041. The structure is 65 ft (19.7 m) long and 181 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesInterstate 5
CrossesAllen Avenue
Location07-LA-005-28.14-GNDL
RouteInterstate 5
CountyLos Angeles County
StateCalifornia
Coordinates34.16757, -118.30015
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length65 ft (19.7 m)
Longest span61 ft (18.7 m)
Deck width181 ft (55.2 m)
Roadway width176 ft (53.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic239,010 (2018)
Projected traffic244,500 by 2041
Trucks8%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 5 over Allen Avenue built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2014.

What condition is Interstate 5 over Allen Avenue 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 2024.

How much traffic does Interstate 5 over Allen Avenue carry?

About 239,010 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Interstate 5 over Allen Avenue?

The structure is 65 ft (19.7 m) long with a longest span of 61 ft (18.7 m) and a deck 181 ft wide.

Who owns Interstate 5 over Allen Avenue?

It is owned by the State Highway Agency.