Roy Mcginnis is an earth dam located in Perkins County, South Dakota, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 300 ft long, taller than 76% of U.S. dams with a recorded height. 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 Roy Mcginnis
The primary purpose of Roy Mcginnis is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Roy Mcginnis (private). It impounds the Tr Moreau River.
The dam stands 33 feet tall and stretches 300 feet across, and has a maximum storage capacity of 308 acre-feet. Completed in 1956, the structure is well into its service life at over 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.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | South Dakota |
| County | Perkins |
| Nearest City | None |
| River/Stream | Tr Moreau River |
| Coordinates | 45.09499, -102.31499 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 300 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 308 acre-ft |
| Max Storage | 308 acre-ft |
| Normal Storage | 237 acre-ft |
| Max Discharge | 600 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Roy Mcginnis |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01756 |
| Federal ID | SD01756 |
| More Info | State Dam Safety Program |