Detzman is a privately owned earth dam located in Lavalle, Wisconsin, along the Tr North Branch Honey Creek. Designed by USDA NRCS and completed in 1975, the dam stands at a height of 25 feet and has a length of 400 feet, providing flood risk reduction for the area. With a storage capacity of 68 acre-feet, the dam serves multiple purposes including fish and wildlife pond creation, flood risk reduction, and recreation.

Managed by the Natural Resources Conservation Service, Detzman has a low hazard potential and a moderate risk assessment rating. The dam features an uncontrolled spillway and outlet gates, with a maximum discharge of 160 cubic feet per second. Its surface area covers 4 acres, serving a drainage area of 0.48 square miles. While the dam's condition assessment is currently unavailable, it undergoes inspections every 10 years to ensure its integrity and safety.

With Congressman Mark Pocan representing the area, Detzman plays a crucial role in managing water resources and mitigating flood risks in Sauk County, Wisconsin. As a key structure in the St. Paul District, the dam contributes to the overall conservation efforts in the region. Despite its low hazard potential, Detzman remains a vital asset for the community, highlighting the importance of proper dam maintenance and risk management in the face of changing climate conditions.