Gruenig Dam
Gruenig Dam is an earth dam located in Brule County, South Dakota, built in 1952. It carries a Significant hazard potential classification.
About Gruenig Dam
The primary purpose of Gruenig Dam 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 Vernon Gruenig (private). It impounds the Tr-missouri.
The dam stands 20 feet tall and stretches 550 feet across, and has a maximum storage capacity of 96 acre-feet. Completed in 1952, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | South Dakota |
| County | Brule |
| Nearest City | None |
| River/Stream | Tr-missouri |
| Coordinates | 43.90805, -99.11318 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 550 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 96 acre-ft |
| Max Storage | 96 acre-ft |
| Normal Storage | 54 acre-ft |
| Max Discharge | 400 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | VERNON GRUENIG |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00205 |
| Federal ID | SD00205 |
| More Info | State Dam Safety Program |