Henry Neuman Detention, also known as Isaac Walton League, is a private earth dam located in Elba, Minnesota. Built in 1982 by the USDA NRCS, this flood risk reduction structure stands at 26 feet tall and stretches 332 feet in length. With a storage capacity of 52 acre-feet and a drainage area of 0.47 square miles, the dam plays a crucial role in mitigating flood risks along the Whitewater River S Branch.

Managed by the Natural Resources Conservation Service, Henry Neuman Detention has a low hazard potential and is deemed to be in satisfactory condition as of the last inspection in June 2017. Despite its uncontrolled spillway and outlet gates, the dam has a moderate risk rating of 3, highlighting the importance of ongoing risk management measures. Its role in safeguarding the surrounding area from flooding underscores the vital link between water resource management and climate resilience in the region.

For water resource and climate enthusiasts, Henry Neuman Detention serves as a testament to the collaborative efforts between private entities and state regulatory agencies in safeguarding communities from the impacts of extreme weather events. Its strategic location within the St. Paul District and the oversight provided by the MNDNR EWR ensure that this earth dam continues to fulfill its primary purpose of flood risk reduction. As discussions around climate change intensify, structures like Henry Neuman Detention play a crucial role in building resilience and adaptive capacity in the face of evolving environmental challenges.