280N - 101S (wu) over 280/101 Interchange
FairSan Francisco County, California · 04-SF-101-1.79-SF · Structure no. 34 0136G
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 1,993 ft
- 20 main spans
- Daily traffic
- 80,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
280N - 101S (wu) over 280/101 Interchange is a concrete continuous box beam or girders - multiple carrying 280N - 101S (wu) over 280/101 Interchange in San Francisco County, California. It was built in 1960, so it is 65 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 80,000 vehicles a day, roughly 3% of them trucks, projected to reach 107,238 by 2041. The structure is 1,993 ft (607.5 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 280N - 101S (wu) over 280/101 Interchange built?
It was built in 1960, making it 65 years old in 2025.
What condition is 280N - 101S (wu) over 280/101 Interchange 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 March 2024.
How much traffic does 280N - 101S (wu) over 280/101 Interchange carry?
About 80,000 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is 280N - 101S (wu) over 280/101 Interchange?
The structure is 1,993 ft (607.5 m) long with a longest span of 102 ft (31.2 m) and a deck 37 ft wide.
Who owns 280N - 101S (wu) over 280/101 Interchange?
It is owned by the State Highway Agency.