Rose Lake
Rose Lake is a gravity dam located in Otter Tail County, Minnesota, built in 1919. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Rose Lake
Rose Lake is a dam in Otter Tail, Minnesota. The dam is owned by County Of Otter Tail (local government). It impounds the Pomme De Terre River near Dalton.
The dam stands 22 feet tall and stretches 200 feet across, creates a reservoir covering 108 acres, has a maximum storage capacity of 207 acre-feet, and collects water from a drainage area of 76 square miles. Completed in 1919, the structure is over a century old.
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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/22/2021.
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Location
| State | Minnesota |
| County | Otter Tail |
| Nearest City | Dalton |
| River/Stream | Pomme De Terre River |
| Coordinates | 46.19053, -95.97552 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 22 ft |
| Dam Height | 16 ft |
| Dam Length | 200 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 207 acre-ft |
| Max Storage | 207 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 108 acres |
| Drainage Area | 76 sq mi |
| Max Discharge | 2,485 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | County of Otter Tail |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/22/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00662 |
| Federal ID | MN00662 |
| More Info | State Dam Safety Program |