Sd Noname 171
Sd Noname 171 is an earth dam located in Jackson County, South Dakota, built in 1960. It carries a Significant hazard potential classification.
About Sd Noname 171
The primary purpose of Sd Noname 171 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 Ringer Es (private). It impounds the Tr-bad River.
The dam stands 31 feet tall and stretches 980 feet across, and has a maximum storage capacity of 225 acre-feet. Completed in 1960, 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 | Jackson |
| Nearest City | None |
| River/Stream | Tr-bad River |
| Coordinates | 43.87833, -101.66999 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 980 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 225 acre-ft |
| Max Storage | 225 acre-ft |
| Normal Storage | 75 acre-ft |
| Max Discharge | 1,500 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | RINGER ES |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01998 |
| Federal ID | SD01998 |
| More Info | State Dam Safety Program |