Rush Lake
Key Takeaway
Rush Lake is classified as low hazard in Minnesota. It was completed in 1937 and is 89 years old. Its primary use is recreation.
Physical Details
| Dam Height | 6 ft (taller than 1.9% in MN) |
| Dam Length | 105 ft |
| Dam Type | Gravity |
| Max Storage | 78.3K acre-ft |
| Normal Storage | 52.3K acre-ft |
| Surface Area | 5,233 acres |
| Drainage Area | 670 sq mi |
| Max Discharge | 4,520 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | MN00211 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MNDNR-EWR
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Rush Lake?
Rush Lake is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Rush Lake?
Rush Lake is owned by MNDNR-EWR (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rush Lake built?
Rush Lake was completed in 1937, making it 89 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Rush Lake?
Rush Lake serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Rush Lake?
Rush Lake has a dam height of 6 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Rush Lake last inspected?
Rush Lake was last inspected on August 31, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.