US 95 over Robertson Slough
GoodWashington County, Idaho · 0.6 S. Weiser Scl · Structure no. 000000000018121
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete
- Length
- 46 ft
- 4 main spans
- Daily traffic
- 7,800
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 95 over Robertson Slough is a concrete culvert carrying US 95 over Robertson Slough in Washington County, Idaho. It was built in 2017, so it is 8 years old, younger than the Idaho average of 45.3 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 7,800 vehicles a day, roughly 8% of them trucks, projected to reach 11,700 by 2042. The structure is 46 ft (14 m) long and 49 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 95 over Robertson Slough built?
It was built in 2017, making it 8 years old in 2025.
What condition is US 95 over Robertson Slough 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 US 95 over Robertson Slough carry?
About 7,800 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is US 95 over Robertson Slough?
The structure is 46 ft (14 m) long with a longest span of 10 ft (3 m) and a deck 49 ft wide.
Who owns US 95 over Robertson Slough?
It is owned by the State Highway Agency.