SB Interstate 280 over 1st ST 2nd 3rd
GoodSanta Clara County, California · 04-SCL-280-R1.85-SJS · Structure no. 37 0279L
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 838 ft
- 6 main spans
- Daily traffic
- 111,700
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
SB Interstate 280 over 1st ST 2nd 3rd is a concrete continuous box beam or girders - multiple carrying SB Interstate 280 over 1st ST 2nd 3rd 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 111,700 vehicles a day, roughly 3% of them trucks, projected to reach 153,208 by 2045. The structure is 838 ft (255.4 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 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 SB Interstate 280 over 1st ST 2nd 3rd built?
It was built in 1972, making it 53 years old in 2025.
What condition is SB Interstate 280 over 1st ST 2nd 3rd 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 2025.
How much traffic does SB Interstate 280 over 1st ST 2nd 3rd carry?
About 111,700 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is SB Interstate 280 over 1st ST 2nd 3rd?
The structure is 838 ft (255.4 m) long with a longest span of 155 ft (47.2 m) and a deck 90 ft wide.
Who owns SB Interstate 280 over 1st ST 2nd 3rd?
It is owned by the State Highway Agency.