US Bridges

Interstate 405 over Woodruff Ave

Fair

Los Angeles County, California · 07-LA-405-1.64-LBCH · Structure no. 53 1191

Built
1963
62 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
160 ft
3 main spans
Daily traffic
253,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 405 over Woodruff Ave is a concrete continuous box beam or girders - multiple carrying Interstate 405 over Woodruff 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 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 253,000 vehicles a day, roughly 5% of them trucks, projected to reach 316,127 by 2041. The structure is 160 ft (48.8 m) long and 140 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 405
CrossesWoodruff Ave
Location07-LA-405-1.64-LBCH
RouteInterstate 405
Coordinates33.80196, -118.11449
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span74 ft (22.6 m)
Deck width140 ft (42.7 m)
Roadway width140 ft (42.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic253,000 (2021)
Projected traffic316,127 by 2041
Trucks5%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
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 Interstate 405 over Woodruff Ave built?

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

What condition is Interstate 405 over Woodruff Ave 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 December 2024.

How much traffic does Interstate 405 over Woodruff Ave carry?

About 253,000 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Interstate 405 over Woodruff Ave?

The structure is 160 ft (48.8 m) long with a longest span of 74 ft (22.6 m) and a deck 140 ft wide.

Who owns Interstate 405 over Woodruff Ave?

It is owned by the State Highway Agency.