Sd Noname 231 is an earth dam located in Harding County, South Dakota, built in 1952. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 190 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sd Noname 231
The primary purpose of Sd Noname 231 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 James Henderson (private). It impounds the Tributary to Sand Creek.
The dam stands 16 feet tall and stretches 190 feet across, and has a maximum storage capacity of 59 acre-feet. Completed in 1952, 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.
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Location
| State | South Dakota |
| County | Harding |
| Nearest City | None |
| River/Stream | Tributary to Sand Creek |
| Coordinates | 45.41999, -103.51666 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 190 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 20 acre-ft |
| Max Discharge | 195 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | James Henderson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01911 |
| Federal ID | SD01911 |
| More Info | State Dam Safety Program |