Randall Rc&d Ca-66-bh is an earth dam located in Bon Homme County, South Dakota, built in 1971. It carries a Low hazard potential classification.
Dam profile
NID height · 39 ft39 ft tall and 462 ft long, taller than 85% 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 Randall Rc&d Ca-66-bh
The primary purpose of Randall Rc&d Ca-66-bh 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 Ed Miedema (local government). It impounds the Missouri River-tr near Santee Ne.
The dam stands 39 feet tall and stretches 462 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 280 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1971, 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.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | South Dakota |
| County | Bon Homme |
| Nearest City | Santee Ne |
| River/Stream | Missouri River-tr |
| Coordinates | 42.87547, -97.87670 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 462 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 280 acre-ft |
| Max Storage | 280 acre-ft |
| Normal Storage | 145 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,121 cfs |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Ed Miedema |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02292 |
| Federal ID | SD02292 |
| More Info | State Dam Safety Program |