Chapelle
Key Takeaway
Chapelle is classified as low hazard in South Dakota. It was completed in 1937 and is 89 years old. Its primary use is recreation.
Physical Details
| Dam Height | 20 ft (taller than 33.7% in SD) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 625 acre-ft |
| Normal Storage | 263 acre-ft |
| Surface Area | 38 acres |
| Drainage Area | 28 sq mi |
| Max Discharge | 2,233 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | SD00027 |
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
GF&P
State Government
Nearby Dams
J. Harter
Hyde, SD
Low Hazard 14 ftW. Knox
Hyde, SD
Low Hazard 24 ftHarter Pond Dam
Hyde, SD
Low Hazard 9 ftW. Peterson
Hyde, SD
Low Hazard 27 ftJ. Peterson
Hyde, SD
Low Hazard 21 ftJ. Harter
Hyde, SD
Low Hazard 14 ftL. M. Hanson
Hyde, SD
Low Hazard 21 ftW. J. Asmussen
Hyde, SD
Low Hazard 21 ftFrequently Asked Questions
What is the hazard classification of Chapelle?
Chapelle 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 Chapelle?
Chapelle is owned by GF&P (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Chapelle built?
Chapelle 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 Chapelle?
Chapelle 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 Chapelle?
Chapelle 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 Chapelle last inspected?
Chapelle was last inspected on October 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.