Sd Noname 70
Sd Noname 70 is an earth dam located in Haakon County, South Dakota, built in 1960. It carries a Low hazard potential classification.
About Sd Noname 70
The primary purpose of Sd Noname 70 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 Frank Halligan (private). It impounds the Grindstone Creek-tr.
The dam stands 18 feet tall and stretches 640 feet across, and has a maximum storage capacity of 137 acre-feet. Completed in 1960, 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 | Haakon |
| Nearest City | None |
| River/Stream | Grindstone Creek-tr |
| Coordinates | 44.10838, -101.70173 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 640 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 137 acre-ft |
| Max Storage | 137 acre-ft |
| Normal Storage | 72 acre-ft |
| Max Discharge | 1,875 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | FRANK HALLIGAN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00819 |
| Federal ID | SD00819 |
| More Info | State Dam Safety Program |