Forest DR over Coal Creek
FairKing County, Washington · Forest DR & 152nd · Structure no. 085690000000000
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 104 ft
- 1 main span
- Daily traffic
- 3,505
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Forest DR over Coal Creek is a prestressed concrete stringer/multi-beam or girder carrying Forest DR over Coal Creek in King County, Washington. It was built in 1989, so it is 36 years old, younger than the Washington average of 49.8 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 3,505 vehicles a day, roughly 4% of them trucks, projected to reach 4,381 by 2042. The structure is 104 ft (31.7 m) long and 45 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Forest DR over Coal Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Forest DR over Coal Creek 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 May 2024.
How much traffic does Forest DR over Coal Creek carry?
About 3,505 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Forest DR over Coal Creek?
The structure is 104 ft (31.7 m) long with a longest span of 99 ft (30.3 m) and a deck 45 ft wide.
Who owns Forest DR over Coal Creek?
It is owned by the City or Municipal Highway Agency.