George Knapp Dam
Key Takeaway
George Knapp Dam is classified as low hazard in South Dakota. It was completed in 1955 and is 71 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 15 ft (taller than 11.1% in SD) |
| Dam Length | 1,060 ft |
| Dam Type | Earth |
| Max Storage | 110 acre-ft |
| Normal Storage | 48 acre-ft |
| Max Discharge | 1,800 cfs |
| Year Completed | 1955 (71 years old) |
| NID ID | SD01963 |
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
H&K RANCH
Private
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What is the hazard classification of George Knapp Dam?
George Knapp 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 George Knapp Dam?
George Knapp Dam is owned by H&K RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was George Knapp Dam built?
George Knapp Dam was completed in 1955, making it 71 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 George Knapp Dam?
George Knapp Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is George Knapp Dam?
George Knapp Dam has a dam height of 15 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.