Newfolden is a dam located in Marshall County, Minnesota, built in 2024. It carries a Significant hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 15,837 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Newfolden
The primary purpose of Newfolden is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Wd of Middle-snake-tamarac Rivers (local government).
The dam stands 23 feet tall and stretches 15,837 feet across, has a maximum storage capacity of 3,020 acre-feet, and collects water from a drainage area of 10 square miles. Completed in 2024, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | Minnesota |
| County | Marshall |
| Nearest City | Newfolden |
| Coordinates | 48.37294, -96.33491 |
Physical Characteristics
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 15,837 ft |
| Year Completed | 2024 (2 years old) |
Storage & Hydraulics
| NID Storage | 3,020 acre-ft |
| Max Storage | 3,020 acre-ft |
| Normal Storage | 2,000 acre-ft |
| Drainage Area | 10 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Wd of Middle-snake-tamarac Rivers |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01881 |
| Federal ID | MN01881 |
| More Info | State Dam Safety Program |