US Bridges

State Route 210 over Walnut Avenue

Good

Los Angeles County, California · 07-LA-210-R45.71-SDMS · Structure no. 53 2068

Built
1970
55 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
193,000
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 210 over Walnut Avenue is a prestressed concrete box beam or girders - multiple carrying State Route 210 over Walnut 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 193,000 vehicles a day, roughly 9% of them trucks, projected to reach 399,416 by 2043. The structure is 106 ft (32.3 m) long and 171 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 210
CrossesWalnut Avenue
Location07-LA-210-R45.71-SDMS
RouteInterstate 210
Coordinates34.11955, -117.80294
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 rating105.7 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span104 ft (31.7 m)
Deck width171 ft (52.1 m)
Roadway width166 ft (50.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic193,000 (2015)
Projected traffic399,416 by 2043
Trucks9%
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 Walnut Avenue built?

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

What condition is State Route 210 over Walnut 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 Walnut Avenue carry?

About 193,000 vehicles per day (2015 count), of which roughly 9% are trucks.

How long is State Route 210 over Walnut Avenue?

The structure is 106 ft (32.3 m) long with a longest span of 104 ft (31.7 m) and a deck 171 ft wide.

Who owns State Route 210 over Walnut Avenue?

It is owned by the State Highway Agency.