W380-N280 Connectr over N280 On-Ramp Collector
FairSan Mateo County, California · 04-SM-380-T4.71 · Structure no. 35 0063F
- Built
- 1971
- 54 years old, rebuilt 1996
- Condition
- Fair
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 111 ft
- 1 main span
- Daily traffic
- 47,500
- 2005 count
- Owner
- State
- State Highway Agency
About this bridge
W380-N280 Connectr over N280 On-Ramp Collector is a prestressed concrete box beam or girders - multiple carrying W380-N280 Connectr over N280 On-Ramp Collector in San Mateo County, California. It was built in 1971 and reconstructed in 1996, so it is 54 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 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 47,500 vehicles a day, roughly 5% of them trucks, projected to reach 55,617 by 2042. The structure is 111 ft (33.8 m) long and 55 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 | 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 W380-N280 Connectr over N280 On-Ramp Collector built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1996.
What condition is W380-N280 Connectr over N280 On-Ramp Collector 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 February 2024.
How much traffic does W380-N280 Connectr over N280 On-Ramp Collector carry?
About 47,500 vehicles per day (2005 count), of which roughly 5% are trucks.
How long is W380-N280 Connectr over N280 On-Ramp Collector?
The structure is 111 ft (33.8 m) long with a longest span of 109 ft (33.1 m) and a deck 55 ft wide.
Who owns W380-N280 Connectr over N280 On-Ramp Collector?
It is owned by the State Highway Agency.