Nelson Dam
Nelson Dam is an earth dam located in Haakon County, South Dakota, built in 1976. It carries a Low hazard potential classification.
About Nelson Dam
The primary purpose of Nelson Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Mark J. Nelson (private). It impounds the Witcher Holes Creek-tr.
The dam stands 30 feet tall and stretches 400 feet across, and has a maximum storage capacity of 144 acre-feet. Completed in 1976, the structure is 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | South Dakota |
| County | Haakon |
| River/Stream | Witcher Holes Creek-tr |
| Coordinates | 44.14326, -101.44144 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 400 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 144 acre-ft |
| Max Storage | 144 acre-ft |
| Normal Storage | 108 acre-ft |
| Max Discharge | 540 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | MARK J. NELSON |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02578 |
| Federal ID | SD02578 |
| More Info | State Dam Safety Program |