The Heppner Dam is an earth dam located in Fall River County, South Dakota, built in 1935. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 1,230 ft long, taller than 74% of U.S. dams with a recorded height. 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 The Heppner Dam
The primary purpose of The Heppner Dam 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 Kathy Heppner (private). It impounds the Plum Creek-tr.
The dam stands 32 feet tall and stretches 1,230 feet across, and has a maximum storage capacity of 560 acre-feet. Completed in 1935, 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 | Fall River |
| Nearest City | None |
| River/Stream | Plum Creek-tr |
| Coordinates | 43.21156, -103.77259 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 1,230 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 560 acre-ft |
| Max Storage | 560 acre-ft |
| Normal Storage | 420 acre-ft |
| Max Discharge | 40 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Kathy Heppner |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01399 |
| Federal ID | SD01399 |
| More Info | State Dam Safety Program |