Sd Noname 185
Sd Noname 185 is an earth dam located in Jackson County, South Dakota, built in 1950. It carries a Significant hazard potential classification.
About Sd Noname 185
The primary purpose of Sd Noname 185 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 Olson (private). It impounds the Trib. White River.
The dam stands 22 feet tall and stretches 520 feet across, and has a maximum storage capacity of 70 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 | Trib. White River |
| Coordinates | 43.71333, -101.52166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 520 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Normal Storage | 35 acre-ft |
| Max Discharge | 1,200 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | OLSON |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02125 |
| Federal ID | SD02125 |
| More Info | State Dam Safety Program |