Sumner 25
Sumner 25 is an earth dam located in Fillmore County, Minnesota, built in 1972. It carries a Low hazard potential classification.
About Sumner 25
The primary purpose of Sumner 25 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 Olson, Vincent & Linda (private). It impounds the Kedron Brook near Whalan.
The dam stands 24 feet tall and stretches 260 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1972, 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 05/03/2024.
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Location
| State | Minnesota |
| County | Fillmore |
| Nearest City | Whalan |
| River/Stream | Kedron Brook |
| Coordinates | 43.78296, -92.33513 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 260 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 4 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 422 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Olson, Vincent & Linda |
| Owner Type | Private |
| Hazard Classification | Low |
| Last Inspection | 05/03/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00901 |
| Federal ID | MN00901 |
| More Info | State Dam Safety Program |