RTE I 280 N Onramp over Sickles Avenue
FairSan Francisco County, California · 04-SF-280-R0.75-SF · Structure no. 34 0085S
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 142 ft
- 3 main spans
- Daily traffic
- 15,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
RTE I 280 N Onramp over Sickles Avenue is a concrete continuous box beam or girders - multiple carrying RTE I 280 N Onramp over Sickles Avenue 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 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 15,000 vehicles a day, roughly 2% of them trucks, projected to reach 26,632 by 2044. The structure is 142 ft (43.3 m) long and 26 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 RTE I 280 N Onramp over Sickles Avenue built?
It was built in 1964, making it 61 years old in 2025.
What condition is RTE I 280 N Onramp over Sickles Avenue 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 RTE I 280 N Onramp over Sickles Avenue carry?
About 15,000 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is RTE I 280 N Onramp over Sickles Avenue?
The structure is 142 ft (43.3 m) long with a longest span of 83 ft (25.4 m) and a deck 26 ft wide.
Who owns RTE I 280 N Onramp over Sickles Avenue?
It is owned by the State Highway Agency.