W-N Ramp over Terrain
GoodKing County, Washington · 5.5 N JCT SR 900 · Structure no. 0007741I0000000
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected September 2024
- Type
- Slab
- Concrete Continuous
- Length
- 410 ft
- 10 main spans
- Daily traffic
- 5,951
- 2012 count
- Owner
- State
- State Highway Agency
About this bridge
W-N Ramp over Terrain is a concrete continuous slab carrying W-N Ramp over Terrain in King County, Washington. It was built in 1967, so it is 58 years old, older 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 5,951 vehicles a day, roughly 5% of them trucks, projected to reach 9,950 by 2036. The structure is 410 ft (125 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was W-N Ramp over Terrain built?
It was built in 1967, making it 58 years old in 2025.
What condition is W-N Ramp over Terrain 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 September 2024.
How much traffic does W-N Ramp over Terrain carry?
About 5,951 vehicles per day (2012 count), of which roughly 5% are trucks.
How long is W-N Ramp over Terrain?
The structure is 410 ft (125 m) long with a longest span of 38 ft (11.6 m) and a deck 26 ft wide.
Who owns W-N Ramp over Terrain?
It is owned by the State Highway Agency.