Charlestown 28
Charlestown 28 is an earth dam located in Redwood County, Minnesota, built in 2015. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Charlestown 28
The primary purpose of Charlestown 28 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Beyer, Maynard (private). It impounds the Cottonwood River-tr near Sanborn.
The dam stands 29 feet tall, has a maximum storage capacity of 79 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2015, the structure is relatively new.
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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 03/29/2017.
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Location
| State | Minnesota |
| County | Redwood |
| Nearest City | Sanborn |
| River/Stream | Cottonwood River-tr |
| Coordinates | 44.21389, -95.18043 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Year Completed | 2015 (11 years old) |
Storage & Hydraulics
| NID Storage | 79 acre-ft |
| Max Storage | 79 acre-ft |
| Normal Storage | 1 acre-ft |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Beyer, Maynard |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/29/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01669 |
| Federal ID | MN01669 |
| More Info | State Dam Safety Program |