Interstate 280 NB over Rancho Pulgas Vista Road
FairSan Mateo County, California · 04-SM-280-9.41 · Structure no. 35 0247R
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected October 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 107 ft
- 1 main span
- Daily traffic
- 55,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 280 NB over Rancho Pulgas Vista Road is a prestressed concrete box beam or girders - multiple carrying Interstate 280 NB over Rancho Pulgas Vista Road in San Mateo County, California. It was built in 1973, so it is 52 years old, younger 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 55,500 vehicles a day, roughly 3% of them trucks, projected to reach 80,658 by 2040. The structure is 107 ft (32.6 m) long and 82 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 280 NB over Rancho Pulgas Vista Road built?
It was built in 1973, making it 52 years old in 2025.
What condition is Interstate 280 NB over Rancho Pulgas Vista Road 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 October 2023.
How much traffic does Interstate 280 NB over Rancho Pulgas Vista Road carry?
About 55,500 vehicles per day (2009 count), of which roughly 3% are trucks.
How long is Interstate 280 NB over Rancho Pulgas Vista Road?
The structure is 107 ft (32.6 m) long with a longest span of 105 ft (31.9 m) and a deck 82 ft wide.
Who owns Interstate 280 NB over Rancho Pulgas Vista Road?
It is owned by the State Highway Agency.