Antrum is an earth dam located in Harding County, South Dakota, built in 1946. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 900 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 Antrum
The primary purpose of Antrum 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 Tom Travers (private). It impounds the Trib-s Fork Grand River.
The dam stands 20 feet tall and stretches 900 feet across, and has a maximum storage capacity of 240 acre-feet. Completed in 1946, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | South Dakota |
| County | Harding |
| Nearest City | None |
| River/Stream | Trib-s Fork Grand River |
| Coordinates | 45.73666, -103.62499 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 900 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 240 acre-ft |
| Max Storage | 240 acre-ft |
| Normal Storage | 192 acre-ft |
| Max Discharge | 1,050 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Tom Travers |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00626 |
| Federal ID | SD00626 |
| More Info | State Dam Safety Program |