Poss Dam
Key Takeaway
Poss Dam is classified as low hazard in South Dakota. It was completed in 1978 and is 48 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 24 ft (taller than 53.3% in SD) |
| Dam Length | 193 ft |
| Dam Type | Earth |
| Max Storage | 61 acre-ft |
| Normal Storage | 45 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 888 cfs |
| Year Completed | 1978 (48 years old) |
| NID ID | SD02309 |
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
ED POSS
Private
Nearby Dams
Carl Lungren Dam No.1
Meade, SD
Low Hazard 22 ftJohn Anderson 2
Meade, SD
Low Hazard 12 ftAnderson 1
Meade, SD
Low Hazard 14 ftSd Komes 1
Meade, SD
Low Hazard 14 ftPeters 1
Meade, SD
Low Hazard 15 ftAnderson 5
Meade, SD
Low Hazard 16 ftPrairie View Farms INC.1
Meade, SD
Low Hazard 30 ftMt. View Ranch Dam
Meade, SD
Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Poss Dam?
Poss 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 Poss Dam?
Poss Dam is owned by ED POSS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Poss Dam built?
Poss Dam was completed in 1978, making it 48 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 Poss Dam?
Poss Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Poss Dam?
Poss Dam has a dam height of 24 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.