US 101 S-N Ramp over Wetland
GoodMason County, Washington · 5.7 S JCT SR 102 · Structure no. 0017504A0000000
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 160 ft
- 2 main spans
- Daily traffic
- 1,187
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 101 S-N Ramp over Wetland is a prestressed concrete continuous stringer/multi-beam or girder carrying US 101 S-N Ramp over Wetland in Mason County, Washington. It was built in 2008, so it is 17 years old, younger than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,187 vehicles a day, roughly 5% of them trucks, projected to reach 1,738 by 2039. The structure is 160 ft (48.8 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 101 S-N Ramp over Wetland built?
It was built in 2008, making it 17 years old in 2025.
What condition is US 101 S-N Ramp over Wetland in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.
How much traffic does US 101 S-N Ramp over Wetland carry?
About 1,187 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 101 S-N Ramp over Wetland?
The structure is 160 ft (48.8 m) long with a longest span of 78 ft (23.8 m) and a deck 29 ft wide.
Who owns US 101 S-N Ramp over Wetland?
It is owned by the State Highway Agency.