Dayton Hollow Dam
Key Takeaway
Dayton Hollow Dam is classified as low hazard in Minnesota. It was completed in 1909 and is 117 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 35 ft (taller than 89.8% in MN) |
| Dam Length | 265 ft |
| Dam Type | Gravity |
| Max Storage | 5.0K acre-ft |
| Normal Storage | 3.5K acre-ft |
| Surface Area | 230 acres |
| Drainage Area | 1,810 sq mi |
| Max Discharge | 2,000 cfs |
| Year Completed | 1909 (117 years old) |
| NID ID | MN00196 |
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
Otter Tail Power Company
Public Utility
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Low Hazard 6 ftFrequently Asked Questions
What is the hazard classification of Dayton Hollow Dam?
Dayton Hollow Dam 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 Dayton Hollow Dam?
Dayton Hollow Dam is owned by Otter Tail Power Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dayton Hollow Dam built?
Dayton Hollow Dam was completed in 1909, making it 117 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 Dayton Hollow Dam?
Dayton Hollow Dam serves the following purposes: Hydroelectric, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Dayton Hollow Dam?
Dayton Hollow Dam has a dam height of 35 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 Dayton Hollow Dam last inspected?
Dayton Hollow Dam was last inspected on September 22, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.