Black Nugget RD over N Fork Issaquah Creek
FairKing County, Washington · 0.2 MI E of Highland DR · Structure no. 086086000000000
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected October 2024
- Type
- Frame
- Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 400
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Black Nugget RD over N Fork Issaquah Creek is a concrete frame carrying Black Nugget RD over N Fork Issaquah Creek in King County, Washington. It was built in 1992, so it is 33 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 400 vehicles a day, roughly 5% of them trucks, projected to reach 600 by 2042. The structure is 32 ft (9.8 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Black Nugget RD over N Fork Issaquah Creek built?
It was built in 1992, making it 33 years old in 2025.
What condition is Black Nugget RD over N Fork Issaquah 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 October 2024.
How much traffic does Black Nugget RD over N Fork Issaquah Creek carry?
About 400 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Black Nugget RD over N Fork Issaquah Creek?
The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 40 ft wide.
Who owns Black Nugget RD over N Fork Issaquah Creek?
It is owned by the County Highway Agency.