Randall Rc&d Ca-176-gr is an earth dam located in Gregory County, South Dakota, built in 1976. It carries a Low hazard potential classification.
Dam profile
NID height · 69 ft69 ft tall and 316 ft long, taller than 96% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Randall Rc&d Ca-176-gr
The primary purpose of Randall Rc&d Ca-176-gr is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Gregory County (local government). It impounds the South Fork Whetstone Creek-tr near Greenwood.
The dam stands 69 feet tall and stretches 316 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 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.
At 69 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | South Dakota |
| County | Gregory |
| Nearest City | Greenwood |
| River/Stream | South Fork Whetstone Creek-tr |
| Coordinates | 43.22997, -99.17759 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 69 ft |
| Dam Height | 69 ft |
| Dam Length | 316 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 71 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 747 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Gregory County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02301 |
| Federal ID | SD02301 |
| More Info | State Dam Safety Program |