Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp
GoodSanta Clara County, California · 04-SCL-680-M1.55-SJS · Structure no. 37 0289F
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 285 ft
- 3 main spans
- Daily traffic
- 14,400
- 2003 count
- Owner
- State
- State Highway Agency
About this bridge
Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp is a prestressed concrete continuous box beam or girders - multiple carrying Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp in Santa Clara County, California. It was built in 1974, so it is 51 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 14,400 vehicles a day, roughly 2% of them trucks, projected to reach 20,814 by 2042. The structure is 285 ft (86.9 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 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 Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp built?
It was built in 1974, making it 51 years old in 2025.
What condition is Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp 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 April 2024.
How much traffic does Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp carry?
About 14,400 vehicles per day (2003 count), of which roughly 2% are trucks.
How long is Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp?
The structure is 285 ft (86.9 m) long with a longest span of 142 ft (43.3 m) and a deck 26 ft wide.
Who owns Alum Rock Ave Ramp over S680-CAPITOL Xpwy Ramp?
It is owned by the State Highway Agency.