Nygaard Duckpond is an earth dam located in Harding County, South Dakota, built in 1948. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 455 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 Nygaard Duckpond
The primary purpose of Nygaard Duckpond 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 Leonard Nygaard (private). It impounds the Coal Bank Creek.
The dam stands 12 feet tall and stretches 455 feet across, and has a maximum storage capacity of 53 acre-feet. Completed in 1948, 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 | Harding |
| Nearest City | None |
| River/Stream | Coal Bank Creek |
| Coordinates | 45.84929, -103.28225 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 455 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 35 acre-ft |
| Max Discharge | 1,575 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Leonard Nygaard |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00604 |
| Federal ID | SD00604 |
| More Info | State Dam Safety Program |