Mickelson Memorial Marsh South Dam is an earth dam located in Hamlin County, South Dakota, built in 1994. It carries a Low hazard potential classification.
Dam profile
NID height · 8 ft8 ft tall and 750 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Mickelson Memorial Marsh South Dam
The primary purpose of Mickelson Memorial Marsh South 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 Gf&p (state). It impounds the Trib. Big Sioux River.
The dam stands 8 feet tall and stretches 750 feet across, creates a reservoir covering 95 acres, has a maximum storage capacity of 500 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1994, the structure is 32 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. The most recent inspection on record was 11/27/2019.
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Location
| State | South Dakota |
| County | Hamlin |
| Nearest City | None |
| River/Stream | Trib. Big Sioux River |
| Coordinates | 44.58455, -96.98679 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 750 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 500 acre-ft |
| Max Storage | 500 acre-ft |
| Normal Storage | 143 acre-ft |
| Surface Area | 95 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 120 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Gf&p |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/27/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02386 |
| Federal ID | SD02386 |
| More Info | State Dam Safety Program |