US Bridges

I 710 over Washington Blvd

Good

Los Angeles County, California · 07-LA-710-22.45-CMRC · Structure no. 53 0841

Built
1955
70 years old, rebuilt 1967
Condition
Good
inspected July 2024
Type
Tee Beam
Concrete
Length
105 ft
1 main span
Daily traffic
217,000
2017 count
Owner
State
State Highway Agency

About this bridge

I 710 over Washington Blvd is a concrete tee beam carrying I 710 over Washington Blvd in Los Angeles County, California. It was built in 1955 and reconstructed in 1967, so it is 70 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 217,000 vehicles a day, roughly 9% of them trucks, projected to reach 225,835 by 2041. The structure is 105 ft (32 m) long and 194 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesI 710
CrossesWashington Blvd
Location07-LA-710-22.45-CMRC
RouteInterstate 710
Coordinates34.00455, -118.17279
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 inspectionJuly 2024
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length105 ft (32 m)
Longest span104 ft (31.7 m)
Deck width194 ft (59.2 m)
Roadway width137 ft (41.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic217,000 (2017)
Projected traffic225,835 by 2041
Trucks9%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 I 710 over Washington Blvd built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1967.

What condition is I 710 over Washington 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 July 2024.

How much traffic does I 710 over Washington Blvd carry?

About 217,000 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is I 710 over Washington Blvd?

The structure is 105 ft (32 m) long with a longest span of 104 ft (31.7 m) and a deck 194 ft wide.

Who owns I 710 over Washington Blvd?

It is owned by the State Highway Agency.