US Bridges

Stelling Road over Interstate 280

Good

Santa Clara County, California · 04-SCL-280-9.94-CPO · Structure no. 37 0209

Built
1965
60 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
232 ft
4 main spans
Daily traffic
138,500
2012 count
Owner
State
State Highway Agency

About this bridge

Stelling Road over Interstate 280 is a concrete continuous box beam or girders - multiple carrying Stelling Road over Interstate 280 in Santa Clara County, California. It was built in 1965, so it is 60 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 138,500 vehicles a day, roughly 1% of them trucks, projected to reach 156,631 by 2046. The structure is 232 ft (70.7 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesStelling Road
CrossesInterstate 280
Location04-SCL-280-9.94-CPO
RouteCity Street 0C156
Coordinates37.33401, -122.04139
Functional classUrban Minor Arterial

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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span79 ft (24.1 m)
Deck width54 ft (16.5 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic138,500 (2012)
Projected traffic156,631 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Stelling Road over Interstate 280 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Stelling Road over Interstate 280 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 January 2024.

How much traffic does Stelling Road over Interstate 280 carry?

About 138,500 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is Stelling Road over Interstate 280?

The structure is 232 ft (70.7 m) long with a longest span of 79 ft (24.1 m) and a deck 54 ft wide.

Who owns Stelling Road over Interstate 280?

It is owned by the State Highway Agency.