Cedar Grove Colony Dam
Cedar Grove Colony Dam is an earth dam located in Brule County, South Dakota, built in 1937. It carries a Low hazard potential classification.
About Cedar Grove Colony Dam
The primary purpose of Cedar Grove Colony 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 Cedar Grove Colony (private). It impounds the Trib. Platte Creek.
The dam stands 19 feet tall and stretches 300 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 80 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1937, 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 | Brule |
| Nearest City | None |
| River/Stream | Trib. Platte Creek |
| Coordinates | 43.52907, -98.79887 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 300 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,523 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | CEDAR GROVE COLONY |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02445 |
| Federal ID | SD02445 |
| More Info | State Dam Safety Program |