Sd Noname 51 is an earth dam located in Haakon County, South Dakota, built in 1960. It carries a Significant hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 380 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 51
The primary purpose of Sd Noname 51 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 Job Ranches Ltd (private). It impounds the Dirty Womans Creek-tr near Philip.
The dam stands 24 feet tall and stretches 380 feet across, and has a maximum storage capacity of 86 acre-feet. Completed in 1960, the structure is well into its service life at over 50 years old.
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 | Haakon |
| Nearest City | Philip |
| River/Stream | Dirty Womans Creek-tr |
| Coordinates | 44.16532, -101.92118 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 380 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 86 acre-ft |
| Max Storage | 86 acre-ft |
| Normal Storage | 40 acre-ft |
| Max Discharge | 1,050 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Job Ranches Ltd |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00797 |
| Federal ID | SD00797 |
| More Info | State Dam Safety Program |