Sd Noname 258 is an earth dam located in Haakon County, South Dakota, built in 1943. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 800 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 258
The primary purpose of Sd Noname 258 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 Brent Thiel (private). It impounds the Cottonwood Creek-tr.
The dam stands 20 feet tall and stretches 800 feet across, and has a maximum storage capacity of 130 acre-feet. Completed in 1943, 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.
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Location
| State | South Dakota |
| County | Haakon |
| Nearest City | None |
| River/Stream | Cottonwood Creek-tr |
| Coordinates | 44.30544, -101.52185 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 800 ft |
| Year Completed | 1943 (83 years old) |
Storage & Hydraulics
| NID Storage | 130 acre-ft |
| Max Storage | 130 acre-ft |
| Normal Storage | 80 acre-ft |
| Max Discharge | 840 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Brent Thiel |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01512 |
| Federal ID | SD01512 |
| More Info | State Dam Safety Program |