Bascom Avenue over Interstate 280
GoodSanta Clara County, California · 04-SCL-280-L4.94-SJS · Structure no. 37 0254
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected February 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 274 ft
- 2 main spans
- Daily traffic
- 22,100
- 1999 count
- Owner
- State
- State Highway Agency
About this bridge
Bascom Avenue over Interstate 280 is a prestressed concrete continuous box beam or girders - multiple carrying Bascom Avenue over Interstate 280 in Santa Clara County, California. It was built in 1972, so it is 53 years old, younger 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 22,100 vehicles a day, roughly 2% of them trucks, projected to reach 36,387 by 2047. The structure is 274 ft (83.5 m) long and 114 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bascom Avenue over Interstate 280 built?
It was built in 1972, making it 53 years old in 2025.
What condition is Bascom Avenue 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 February 2025.
How much traffic does Bascom Avenue over Interstate 280 carry?
About 22,100 vehicles per day (1999 count), of which roughly 2% are trucks.
How long is Bascom Avenue over Interstate 280?
The structure is 274 ft (83.5 m) long with a longest span of 150 ft (45.7 m) and a deck 114 ft wide.
Who owns Bascom Avenue over Interstate 280?
It is owned by the State Highway Agency.