Mc Cune Dam, located in Marengo, Iowa, is a privately owned earth dam completed in 2001 by the NRCS for fire protection, stock, or small fish pond purposes. With a height of 32 feet and a length of 344 feet, the dam holds a maximum storage capacity of 81 acre-feet and covers a surface area of 6 acres. Situated on the TR-Iowa River, the dam is regulated by the Iowa DNR and is inspected, permitted, and enforced by the state.

Despite being classified as low hazard potential and not yet rated for condition assessment, Mc Cune Dam poses a moderate risk level (3) according to the data. The dam has an uncontrolled spillway type and is surrounded by soil foundation with stone core types. While it has not been modified in recent years and lacks certain emergency preparedness measures, the dam's risk management measures and inundation maps status are not specified.

For water resource and climate enthusiasts, Mc Cune Dam offers a unique case study in dam infrastructure in the Midwest. With its relatively low hazard potential and moderate risk level, the dam provides valuable insights into the complexities of managing water resources for multiple purposes. As a privately owned structure on the TR-Iowa River, Mc Cune Dam highlights the importance of state regulation, inspection, and enforcement in ensuring the safety and sustainability of water infrastructure in Iowa.