Winchester Blvd over Interstate 280
FairSanta Clara County, California · 04-SCL-280-R4.57-SJS · Structure no. 37 0195
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected January 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 238 ft
- 4 main spans
- Daily traffic
- 36,200
- 1999 count
- Owner
- State
- State Highway Agency
About this bridge
Winchester Blvd over Interstate 280 is a concrete continuous box beam or girders - multiple carrying Winchester Blvd over Interstate 280 in Santa Clara County, California. It was built in 1964, so it is 61 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 36,200 vehicles a day, roughly 2% of them trucks, projected to reach 58,620 by 2042. The structure is 238 ft (72.6 m) long and 112 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Winchester Blvd over Interstate 280 built?
It was built in 1964, making it 61 years old in 2025.
What condition is Winchester Blvd over Interstate 280 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.
How much traffic does Winchester Blvd over Interstate 280 carry?
About 36,200 vehicles per day (1999 count), of which roughly 2% are trucks.
How long is Winchester Blvd over Interstate 280?
The structure is 238 ft (72.6 m) long with a longest span of 80 ft (24.4 m) and a deck 112 ft wide.
Who owns Winchester Blvd over Interstate 280?
It is owned by the State Highway Agency.