IRR Route 116 over Stepstone Creek
FairOkanogan County, Washington · 13 KM North of Nespelem · Structure no. 00000000000P340
- Built
- 1998
- 27 years old
- Condition
- Fair
- inspected June 2023
- Type
- Culvert
- Steel
- Length
- 28 ft
- 1 main span
- Daily traffic
- 50
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR Route 116 over Stepstone Creek is a steel culvert carrying IRR Route 116 over Stepstone Creek in Okanogan County, Washington. It was built in 1998, so it is 27 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 5 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 50 vehicles a day, roughly 30% of them trucks, projected to reach 100 by 2043. The structure is 28 ft (8.5 m) long and 23 ft wide. If it were closed, the detour would be 24.9 mi (40 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR Route 116 over Stepstone Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is IRR Route 116 over Stepstone 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 June 2023.
How much traffic does IRR Route 116 over Stepstone Creek carry?
About 50 vehicles per day (2023 count), of which roughly 30% are trucks.
How long is IRR Route 116 over Stepstone Creek?
The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.1 m) and a deck 23 ft wide.
Who owns IRR Route 116 over Stepstone Creek?
It is owned by the Bureau of Indian Affairs.