US Bridges

Route 710 NB over Floral Drive

Fair

Los Angeles County, California · 07-LA-710-25.21-LA · Structure no. 53 1155

Built
1960
65 years old, rebuilt 1967
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
65 ft
1 main span
Daily traffic
127,000
2017 count
Owner
State
State Highway Agency

About this bridge

Route 710 NB over Floral Drive is a concrete box beam or girders - multiple carrying Route 710 NB over Floral Drive in Los Angeles County, California. It was built in 1960 and reconstructed in 1967, so it is 65 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 127,000 vehicles a day, roughly 5% of them trucks, projected to reach 170,000 by 2041. The structure is 65 ft (19.8 m) long and 195 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 710 NB
CrossesFloral Drive
Location07-LA-710-25.21-LA
RouteInterstate 710
Coordinates34.04412, -118.16977
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 alignment6: Equal to present minimum criteria
Operating rating94.9 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span61 ft (18.6 m)
Deck width195 ft (59.3 m)
Roadway width190 ft (57.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127,000 (2017)
Projected traffic170,000 by 2041
Trucks5%
Lanes on structure5
Traffic directionOne-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 Route 710 NB over Floral Drive built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1967.

What condition is Route 710 NB over Floral Drive 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 August 2024.

How much traffic does Route 710 NB over Floral Drive carry?

About 127,000 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Route 710 NB over Floral Drive?

The structure is 65 ft (19.8 m) long with a longest span of 61 ft (18.6 m) and a deck 195 ft wide.

Who owns Route 710 NB over Floral Drive?

It is owned by the State Highway Agency.