US Bridges

Interstate 405 over Inglewood Ave

Good

Los Angeles County, California · 07-LA-405-18.23-LNDL · Structure no. 53 1233

Built
1963
62 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
187 ft
3 main spans
Daily traffic
260,800
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 405 over Inglewood Ave is a concrete continuous box beam or girders - multiple carrying Interstate 405 over Inglewood Ave in Los Angeles County, California. It was built in 1963, so it is 62 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 260,800 vehicles a day, roughly 5% of them trucks, projected to reach 309,310 by 2041. The structure is 187 ft (57 m) long and 152 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 405
CrossesInglewood Ave
Location07-LA-405-18.23-LNDL
RouteInterstate 405
Coordinates33.89103, -118.36109
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 inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment9: Superior to present desirable criteria
Operating rating61.8 US tons
Inventory rating44.3 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length187 ft (57 m)
Longest span113 ft (34.4 m)
Deck width152 ft (46.3 m)
Roadway width144 ft (43.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260,800 (2019)
Projected traffic309,310 by 2041
Trucks5%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 405 over Inglewood Ave built?

It was built in 1963, making it 62 years old in 2025.

What condition is Interstate 405 over Inglewood Ave 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 October 2024.

How much traffic does Interstate 405 over Inglewood Ave carry?

About 260,800 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Interstate 405 over Inglewood Ave?

The structure is 187 ft (57 m) long with a longest span of 113 ft (34.4 m) and a deck 152 ft wide.

Who owns Interstate 405 over Inglewood Ave?

It is owned by the State Highway Agency.