US Bridges

Interstate 605 over Firestone Blvd

Good

Los Angeles County, California · 07-LA-605-R8.38-NRW · Structure no. 53 1653

Built
1966
59 years old, rebuilt 1992
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
190 ft
2 main spans
Daily traffic
298,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 605 over Firestone Blvd is a concrete continuous box beam or girders - multiple carrying Interstate 605 over Firestone Blvd in Los Angeles County, California. It was built in 1966 and reconstructed in 1992, so it is 59 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 298,000 vehicles a day, projected to reach 276,624 by 2042. The structure is 190 ft (58 m) long and 196 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesInterstate 605
CrossesFirestone Blvd
Location07-LA-605-R8.38-NRW
RouteInterstate 605
Coordinates33.92432, -118.10388
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length190 ft (58 m)
Longest span95 ft (29.1 m)
Deck width196 ft (59.7 m)
Roadway width190 ft (58 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic298,000 (2021)
Projected traffic276,624 by 2042
Trucks0%
Lanes on structure14
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 605 over Firestone Blvd built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1992.

What condition is Interstate 605 over Firestone Blvd 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 September 2023.

How much traffic does Interstate 605 over Firestone Blvd carry?

About 298,000 vehicles per day (2021 count).

How long is Interstate 605 over Firestone Blvd?

The structure is 190 ft (58 m) long with a longest span of 95 ft (29.1 m) and a deck 196 ft wide.

Who owns Interstate 605 over Firestone Blvd?

It is owned by the State Highway Agency.