Twin Parks 12 is a local government-owned earth dam located in Iowa, Wisconsin, along the Mill Creek river. Built in 1968 by the USDA NRCS, this dam serves the primary purpose of debris control and flood risk reduction. Standing at a height of 37 feet with a hydraulic height of 36 feet, Twin Parks 12 has a storage capacity of 1450 acre-feet and a drainage area of 8 square miles.

Maintained by the Wisconsin Department of Natural Resources, Twin Parks 12 has a low hazard potential and is considered to be in fair condition as of the last assessment in May 2020. The dam has a moderate risk assessment rating and is inspected every 10 years to ensure its structural integrity. Despite its uncontrolled spillway type, Twin Parks 12 plays a crucial role in managing water resources in the region and protecting downstream communities from potential flooding events.

As climate change continues to impact water resources and increase the frequency of extreme weather events, structures like Twin Parks 12 are essential for mitigating flood risks and ensuring the safety of surrounding areas. With its strategic location along the Mill Creek river and its effective debris control mechanisms, Twin Parks 12 stands as a vital infrastructure asset in the ongoing efforts to adapt to a changing climate and protect our water resources for future generations.