Cascade Key over Coal Creek
GoodKing County, Washington · 0.19 S JCT 118th Ave SE · Structure no. 089082000000000
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 1,217
- 2019 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Cascade Key over Coal Creek is a concrete stringer/multi-beam or girder carrying Cascade Key over Coal Creek in King County, Washington. It was built in 2018, so it is 7 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 1,217 vehicles a day, roughly 6% of them trucks, projected to reach 1,217 by 2040. The structure is 36 ft (11 m) long and 48 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cascade Key over Coal Creek built?
It was built in 2018, making it 7 years old in 2025.
What condition is Cascade Key over Coal Creek 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 May 2024.
How much traffic does Cascade Key over Coal Creek carry?
About 1,217 vehicles per day (2019 count), of which roughly 6% are trucks.
How long is Cascade Key over Coal Creek?
The structure is 36 ft (11 m) long with a longest span of 31 ft (9.4 m) and a deck 48 ft wide.
Who owns Cascade Key over Coal Creek?
It is owned by the City or Municipal Highway Agency.