Sumner Twp 25, also known as Mistakenly Rudlong Pond, is a privately owned structure located in Fillmore County, Minnesota. This dam on Kedron Brook was designed by NRCS with state regulation and permitting by MNDNR EWR. With a primary purpose of flood risk reduction, the earth dam stands at 24 feet high and spans a length of 260 feet, providing a storage capacity of 53 acre-feet.

Despite its low hazard potential and satisfactory condition assessment, Sumner Twp 25 has a normal storage capacity of 4 acre-feet and covers a surface area of 1 acre with a drainage area of 0.22 square miles. The dam's maximum discharge capacity is 422 cubic feet per second, showcasing its ability to manage water flow efficiently. With state inspection, enforcement, and regulation in place, this structure plays a crucial role in mitigating flood risks in the region.

Situated in the city of Whalan, Sumner Twp 25 is a vital component of the local water resource infrastructure. With its association with the St. Paul District of the USACE and a history of satisfactory condition assessments, this dam serves as a key asset in flood risk reduction efforts along Kedron Brook. The data highlights the importance of proper maintenance and regulatory oversight to ensure the continued effectiveness of this essential water management structure for the community.