US Highway 81 over Forest River
GoodWalsh County, North Dakota · South Edge of Minto · Structure no. 0081181354
- Built
- 1967
- 58 years old, rebuilt 1995
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 185 ft
- 3 main spans
- Daily traffic
- 2,270
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 81 over Forest River is a prestressed concrete continuous box beam or girders - single or spread carrying US Highway 81 over Forest River in Walsh County, North Dakota. It was built in 1967 and reconstructed in 1995, so it is 58 years old, older than the North Dakota average of 48.2 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 2,270 vehicles a day, roughly 14% of them trucks, projected to reach 2,270 by 2039. The structure is 185 ft (56.4 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US Highway 81 over Forest River built?
It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1995.
What condition is US Highway 81 over Forest River 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 US Highway 81 over Forest River carry?
About 2,270 vehicles per day (2019 count), of which roughly 14% are trucks.
How long is US Highway 81 over Forest River?
The structure is 185 ft (56.4 m) long with a longest span of 78 ft (23.8 m) and a deck 36 ft wide.
Who owns US Highway 81 over Forest River?
It is owned by the State Highway Agency.