Sonnenschien Number 3
Sonnenschien Number 3 is an earth dam located in Stanley County, South Dakota, built in 1972. It carries a Low hazard potential classification.
About Sonnenschien Number 3
The primary purpose of Sonnenschien Number 3 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 Gaylord Sonnenschien (private). It impounds the Trib. Willow Creek near Fort Pierre.
The dam stands 37 feet tall and stretches 345 feet across, and has a maximum storage capacity of 40 acre-feet. Completed in 1972, 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 37 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | South Dakota |
| County | Stanley |
| Nearest City | Fort Pierre |
| River/Stream | Trib. Willow Creek |
| Coordinates | 44.40666, -100.62332 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 345 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 11 acre-ft |
| Max Discharge | 1,138 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | GAYLORD SONNENSCHIEN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01581 |
| Federal ID | SD01581 |
| More Info | State Dam Safety Program |