US Bridges

State Route 210 over Lone Hill Avenue

Good

Los Angeles County, California · 07-LA-210-R44.20-GDR · Structure no. 53 1971

Built
1970
55 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
171 ft
2 main spans
Daily traffic
191,000
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 210 over Lone Hill Avenue is a concrete continuous box beam or girders - multiple carrying State Route 210 over Lone Hill Avenue in Los Angeles County, California. It was built in 1970, so it is 55 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 191,000 vehicles a day, roughly 10% of them trucks, projected to reach 225,471 by 2045. The structure is 171 ft (52.2 m) long and 148 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 210
CrossesLone Hill Avenue
Location07-LA-210-R44.20-GDR
RouteInterstate 210
Coordinates34.1208, -117.82922
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 inspectionFebruary 2025
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 alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating40.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length171 ft (52.2 m)
Longest span86 ft (26.2 m)
Deck width148 ft (45.1 m)
Roadway width146 ft (44.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic191,000 (2017)
Projected traffic225,471 by 2045
Trucks10%
Lanes on structure10
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 State Route 210 over Lone Hill Avenue built?

It was built in 1970, making it 55 years old in 2025.

What condition is State Route 210 over Lone Hill Avenue 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 February 2025.

How much traffic does State Route 210 over Lone Hill Avenue carry?

About 191,000 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is State Route 210 over Lone Hill Avenue?

The structure is 171 ft (52.2 m) long with a longest span of 86 ft (26.2 m) and a deck 148 ft wide.

Who owns State Route 210 over Lone Hill Avenue?

It is owned by the State Highway Agency.