Blumentritt Detention, also known as Irvin Blumentritt Detention, is a privately owned earth dam located on Pine Creek in Winona, Minnesota. Built in 1966 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction for the surrounding area. With a height of 24 feet and a length of 424 feet, the dam has a storage capacity of 45 acre-feet and a drainage area of 1.3 square miles.

Managed by the Minnesota Department of Natural Resources, the Blumentritt Detention dam has a low hazard potential and is assessed to be in satisfactory condition as of its last inspection in May 2017. Despite its uncontrolled spillway and outlet gates, the dam has a moderate risk assessment rating of 3, indicating the need for continued monitoring and potential risk management measures. The surrounding community of Pine Creek relies on this structure to mitigate flood risks and protect local water resources in times of heavy rainfall or increased river flow.

With its important role in flood risk reduction for the Pine Creek area, Blumentritt Detention stands as a key infrastructure piece in the state's water resource management efforts. As climate change continues to pose challenges for water systems across the country, structures like this dam play a crucial role in protecting communities and ensuring the sustainable use of water resources in a changing climate.