Route I 280 SB over San Jose Ave Munirail
FairSan Francisco County, California · 04-SF-280-R2.70-SF · Structure no. 34 0079L
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 77 ft
- 1 main span
- Daily traffic
- 85,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Route I 280 SB over San Jose Ave Munirail is a concrete box beam or girders - multiple carrying Route I 280 SB over San Jose Ave Munirail 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 85,000 vehicles a day, roughly 1% of them trucks, projected to reach 116,840 by 2044. The structure is 77 ft (23.5 m) long and 85 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route I 280 SB over San Jose Ave Munirail built?
It was built in 1964, making it 61 years old in 2025.
What condition is Route I 280 SB over San Jose Ave Munirail 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 Route I 280 SB over San Jose Ave Munirail carry?
About 85,000 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is Route I 280 SB over San Jose Ave Munirail?
The structure is 77 ft (23.5 m) long with a longest span of 68 ft (20.7 m) and a deck 85 ft wide.
Who owns Route I 280 SB over San Jose Ave Munirail?
It is owned by the State Highway Agency.