Rush Lake
Rush Lake is a gravity dam located in Otter Tail County, Minnesota, built in 1937. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Rush Lake
The primary purpose of Rush Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mndnr-ewr (state). It impounds the Otter Tail River near Otter Tail.
The dam stands 8 feet tall and stretches 105 feet across, creates a reservoir covering 5,233 acres, has a maximum storage capacity of 78,345 acre-feet, and collects water from a drainage area of 669 square miles. Completed in 1937, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 08/31/2017.
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Location
| State | Minnesota |
| County | Otter Tail |
| Nearest City | Otter Tail |
| River/Stream | Otter Tail River |
| Coordinates | 46.47578, -95.57323 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 8 ft |
| Dam Height | 6 ft |
| Dam Length | 105 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 78,345 acre-ft |
| Max Storage | 78,345 acre-ft |
| Normal Storage | 52,330 acre-ft |
| Surface Area | 5,233 acres |
| Drainage Area | 669 sq mi |
| Max Discharge | 4,520 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | MNDNR-EWR |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/31/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00211 |
| Federal ID | MN00211 |
| More Info | State Dam Safety Program |