Pillager
Key Takeaway
Pillager is classified as high hazard in Minnesota. It was completed in 1917 and is 109 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 22 ft (taller than 66.3% in MN) |
| Dam Length | 903 ft |
| Dam Type | Gravity |
| Max Storage | 4.9K acre-ft |
| Normal Storage | 4.6K acre-ft |
| Surface Area | 768 acres |
| Drainage Area | 3,230 sq mi |
| Max Discharge | 21,000 cfs |
| Year Completed | 1917 (109 years old) |
| NID ID | MN00608 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Allete, Inc.
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Pillager?
Pillager is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Pillager?
Pillager is owned by Allete, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pillager built?
Pillager was completed in 1917, making it 109 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 Pillager?
Pillager serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Pillager?
Pillager has a dam height of 22 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 Pillager last inspected?
Pillager was last inspected on September 9, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.