Sd Noname 66 is an earth dam located in Haakon County, South Dakota, built in 1938. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 570 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 66
The primary purpose of Sd Noname 66 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 Tr-bad River.
The dam stands 16 feet tall and stretches 570 feet across, and has a maximum storage capacity of 109 acre-feet. Completed in 1938, 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 | Tr-bad River |
| Coordinates | 44.14012, -101.67611 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 570 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 109 acre-ft |
| Max Storage | 109 acre-ft |
| Normal Storage | 40 acre-ft |
| Max Discharge | 1,080 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Frank Halligan |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00823 |
| Federal ID | SD00823 |
| More Info | State Dam Safety Program |