SANJOSE-I280 Ramps over Bosworth Street
FairSan Francisco County, California · 04-SF-280-R2.90-SF · Structure no. 34 0092Y
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 251 ft
- 3 main spans
- Daily traffic
- 8,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
SANJOSE-I280 Ramps over Bosworth Street is a concrete continuous box beam or girders - multiple carrying SANJOSE-I280 Ramps over Bosworth Street in San Francisco 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 6 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 8,000 vehicles a day, roughly 3% of them trucks, projected to reach 8,521 by 2044. The structure is 251 ft (76.4 m) long and 124 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 SANJOSE-I280 Ramps over Bosworth Street built?
It was built in 1964, making it 61 years old in 2025.
What condition is SANJOSE-I280 Ramps over Bosworth Street 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 April 2024.
How much traffic does SANJOSE-I280 Ramps over Bosworth Street carry?
About 8,000 vehicles per day (2017 count), of which roughly 3% are trucks.
How long is SANJOSE-I280 Ramps over Bosworth Street?
The structure is 251 ft (76.4 m) long with a longest span of 147 ft (44.7 m) and a deck 124 ft wide.
Who owns SANJOSE-I280 Ramps over Bosworth Street?
It is owned by the State Highway Agency.