Mcintosh Lake
Key Takeaway
Mcintosh Lake is classified as significant hazard in South Dakota. It was completed in 1910 and is 116 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 20 ft (taller than 33.7% in SD) |
| Dam Length | 1,716 ft |
| Dam Type | Earth |
| Max Storage | 786 acre-ft |
| Normal Storage | 161 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 175 cfs |
| Year Completed | 1910 (116 years old) |
| NID ID | SD00738 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MILWAKEE RAILROAD
Private
Nearby Dams
Herbert Stoick
Corson, SD
Significant Hazard 22 ftJames Seiler
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Low Hazard 17 ftDobitz Dam; Fran 14
Sioux, ND
Low Hazard 24 ftPudwell Dam
Corson, SD
Significant Hazard 27 ftDobitz Dam; Fran 7
Sioux, ND
Low Hazard 10 ftSeiler Dam
Corson, SD
Low Hazard 20 ftMcgee Dam
Corson, SD
Low Hazard 21 ftHarold Arnold
Corson, SD
Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Mcintosh Lake?
Mcintosh Lake is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mcintosh Lake?
Mcintosh Lake is owned by MILWAKEE RAILROAD (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mcintosh Lake built?
Mcintosh Lake was completed in 1910, making it 116 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 Mcintosh Lake?
Mcintosh 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 Mcintosh Lake?
Mcintosh Lake has a dam height of 20 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 Mcintosh Lake last inspected?
Mcintosh Lake was last inspected on January 6, 1986. Inspection dates indicate when a formal review occurred, not the results of that inspection.