Dry Hole is an earth dam located in Harding County, South Dakota, built in 1951. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 820 ft long, taller than 59% 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 Dry Hole
The primary purpose of Dry Hole is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by S&pl (state). It impounds the Tr-grand River.
The dam stands 27 feet tall and stretches 820 feet across, and has a maximum storage capacity of 151 acre-feet. Completed in 1951, 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. The most recent inspection on record was 12/18/2018.
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 | Tr-grand River |
| Coordinates | 45.44532, -103.39183 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 820 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 151 acre-ft |
| Max Storage | 151 acre-ft |
| Normal Storage | 129 acre-ft |
| Max Discharge | 840 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | S&pl |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/18/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01199 |
| Federal ID | SD01199 |
| More Info | State Dam Safety Program |