Horstman #1
Key Takeaway
Horstman #1 is classified as low hazard in South Dakota. It was completed in 1954 and is 72 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 23 ft (taller than 49.8% in SD) |
| Dam Length | 174 ft |
| Dam Type | Earth |
| Max Storage | 80 acre-ft |
| Normal Storage | 70 acre-ft |
| Max Discharge | 96 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | SD01454 |
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
HORSTMAN
Private
Nearby Dams
Gregg Dam
Todd, SD
Low Hazard 12 ftRichtor
Mellette, SD
Low Hazard 40 ftGregg Dam No. 2
Todd, SD
Low Hazard 15 ftRichtor Howard No.1
Mellette, SD
Low Hazard 28 ftNelson #1
Mellette, SD
Low Hazard 28 ftAnderson No.2
Mellette, SD
Low Hazard 25 ftEklund #4
Mellette, SD
Low Hazard 29 ftEklund #3
Mellette, SD
Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Horstman #1?
Horstman #1 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 Horstman #1?
Horstman #1 is owned by HORSTMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Horstman #1 built?
Horstman #1 was completed in 1954, making it 72 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 Horstman #1?
Horstman #1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Horstman #1?
Horstman #1 has a dam height of 23 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.