Oscar Rische is an earth dam located in Corson County, South Dakota, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 404 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 Oscar Rische
The primary purpose of Oscar Rische 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 Oscar Rische (private). It impounds the Tr-oak Creek near Wakpala.
The dam stands 22 feet tall and stretches 404 feet across, and has a maximum storage capacity of 97 acre-feet. Completed in 1970, 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.
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Location
| State | South Dakota |
| County | Corson |
| Nearest City | Wakpala |
| River/Stream | Tr-oak Creek |
| Coordinates | 45.75332, -100.73999 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 404 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 97 acre-ft |
| Max Storage | 97 acre-ft |
| Normal Storage | 51 acre-ft |
| Max Discharge | 811 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Oscar Rische |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00594 |
| Federal ID | SD00594 |
| More Info | State Dam Safety Program |