US Bridges

Route 710 over Whittier Blvd

Good

Los Angeles County, California · 07-LA-710-23.77-LA · Structure no. 53 1150

Built
1960
65 years old, rebuilt 1967
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
1 main span
Daily traffic
192,000
2017 count
Owner
State
State Highway Agency

About this bridge

Route 710 over Whittier Blvd is a steel stringer/multi-beam or girder carrying Route 710 over Whittier Blvd 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 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 192,000 vehicles a day, roughly 7% of them trucks, projected to reach 206,537 by 2041. The structure is 88 ft (26.7 m) long and 166 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 710
CrossesWhittier Blvd
Location07-LA-710-23.77-LA
RouteInterstate 710
Coordinates34.02347, -118.1724
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.5 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length88 ft (26.7 m)
Longest span82 ft (25 m)
Deck width166 ft (50.7 m)
Roadway width158 ft (48.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic192,000 (2017)
Projected traffic206,537 by 2041
Trucks7%
Lanes on structure9
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 Route 710 over Whittier Blvd built?

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

What condition is Route 710 over Whittier 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 August 2024.

How much traffic does Route 710 over Whittier Blvd carry?

About 192,000 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is Route 710 over Whittier Blvd?

The structure is 88 ft (26.7 m) long with a longest span of 82 ft (25 m) and a deck 166 ft wide.

Who owns Route 710 over Whittier Blvd?

It is owned by the State Highway Agency.