US Bridges

Firestone Blvd over Interstate 710

Fair

Los Angeles County, California · 07-LA-710-18.44-SGT · Structure no. 53 0831

Built
1957
68 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
229 ft
4 main spans
Daily traffic
45,000
2015 count
Owner
State
State Highway Agency

About this bridge

Firestone Blvd over Interstate 710 is a concrete continuous tee beam carrying Firestone Blvd over Interstate 710 in Los Angeles County, California. It was built in 1957, 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 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 45,000 vehicles a day, roughly 6% of them trucks, projected to reach 56,000 by 2041. The structure is 229 ft (69.8 m) long and 96 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFirestone Blvd
CrossesInterstate 710
Location07-LA-710-18.44-SGT
RouteCity Street 0
Coordinates33.94967, -118.17081
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length229 ft (69.8 m)
Longest span69 ft (21 m)
Deck width96 ft (29.3 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,000 (2015)
Projected traffic56,000 by 2041
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byCity or Municipal 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 Firestone Blvd over Interstate 710 built?

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

What condition is Firestone Blvd over Interstate 710 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 May 2024.

How much traffic does Firestone Blvd over Interstate 710 carry?

About 45,000 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is Firestone Blvd over Interstate 710?

The structure is 229 ft (69.8 m) long with a longest span of 69 ft (21 m) and a deck 96 ft wide.

Who owns Firestone Blvd over Interstate 710?

It is owned by the State Highway Agency and maintained by the City or Municipal Highway Agency.