Lenz Detention, located in Lake City, Minnesota, is a privately owned earth dam constructed in 1967 by the USDA NRCS for the primary purpose of flood risk reduction along the Sugarloaf Creek. The dam stands at a height of 27 feet with a structural height of 28 feet and a length of 273 feet. It has a storage capacity of 18.9 acre-feet and a drainage area of 0.5 square miles, with a maximum discharge of 612 cubic feet per second.

The dam is classified as low hazard potential with a satisfactory condition assessment as of June 2010. It is regulated by the Minnesota Department of Natural Resources and is subject to state permitting, inspection, and enforcement. Despite its moderate risk rating, the dam's emergency action plan status and risk management measures are not specified in the data. Overall, Lenz Detention serves as a critical infrastructure for flood risk reduction in the Wabasha County area, showcasing the importance of effective water resource management in mitigating climate-related risks.