Twin Parks 4, also known as Prazak's, is a local government-owned dam located in Iowa, Wisconsin. Built in 1965 by the USDA NRCS, this earth dam stands at a height of 30.8 feet and serves the primary purpose of flood risk reduction along the TR Mill Creek. With a storage capacity of 178 acre-feet and a maximum discharge of 110 cubic feet per second, Twin Parks 4 plays a crucial role in managing water flow and protecting the surrounding area from potential flood hazards.

The dam is regulated by the Wisconsin Department of Natural Resources (WIDNR) and undergoes regular inspections to ensure its structural integrity and functionality. Despite being classified as having a high hazard potential, Twin Parks 4 is currently assessed to be in fair condition as of the last assessment in May 2020. The dam features an uncontrolled spillway with a width of 40 feet and covers a surface area of 5 acres, providing vital debris control and flood risk reduction benefits to the community.

Located in a picturesque setting with a moderate risk assessment rating, Twin Parks 4 stands as a testament to effective water resource management and climate resilience efforts in Wisconsin. As water resource and climate enthusiasts, it is essential to recognize the importance of infrastructure like Twin Parks 4 in safeguarding our communities and natural habitats against the impacts of extreme weather events and flooding.