South Zumbro Kr-3 is a flood risk reduction dam located in Olmsted County, Minnesota, along Cascade Creek North Fork. Built in 1993 by the USDA NRCS, this earth dam stands at a height of 30 feet and stretches 1320 feet in length, providing crucial flood protection to the surrounding area. With a storage capacity of 257 acre-feet and a drainage area of 1.6 square miles, this structure plays a vital role in managing water flow and minimizing flood risks in the region.

Managed by the local government and regulated by the Minnesota Department of Natural Resources, South Zumbro Kr-3 has a high hazard potential and is inspected regularly to ensure its structural integrity. The dam's spillway is controlled, and its outlet gates are uncontrolled, further enhancing its flood control capabilities. Despite its very high risk assessment rating, the dam's condition was deemed satisfactory during the last assessment in June 2017, highlighting its effectiveness in mitigating flood threats in the area. For water resource and climate enthusiasts, South Zumbro Kr-3 serves as a prime example of how strategic infrastructure can help communities adapt to and withstand the impacts of extreme weather events.