South Whitewater 251 (nid)
South Whitewater 251 (nid) is an earth dam located in Pennington County, South Dakota, built in 1936. It carries a Low hazard potential classification.
About South Whitewater 251 (nid)
The primary purpose of South Whitewater 251 (nid) 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 Usda Fs (federal). It impounds the Dry Draw near Pierre.
The dam stands 20 feet tall and stretches 370 feet across, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.
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. The most recent inspection on record was 08/04/2011. That was over 14 years ago.
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Location
| State | South Dakota |
| County | Pennington |
| Nearest City | Pierre |
| River/Stream | Dry Draw |
| Coordinates | 43.83521, -102.05453 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 17 ft |
| Dam Length | 370 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 66 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 248 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/04/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01126 |
| Federal ID | SD01126 |
| More Info | State Dam Safety Program |