Mc Fadden Dam, located in Clarke, Iowa, was completed in 1969 and is owned by a private entity. The dam, designed by USDA NRCS, primarily serves the purpose of fire protection, stock, or small fish pond. It stands at a height of 40 feet with a length of 748 feet, holding a storage capacity of 486 acre-feet and covering a surface area of 32 acres. The dam is regulated by the Iowa DNR and is inspected, permitted, and enforced by the state, ensuring its safety and compliance with regulations.

Situated on TR-FOUR MILE CREEK, Mc Fadden Dam is part of the Rock Island District and has a low hazard potential with a moderate risk assessment. The dam is classified as an earth structure with a soil foundation, featuring an uncontrolled spillway. While it has not been rated for its condition, the dam is regularly inspected to ensure its integrity and safety. Although not under the jurisdiction of a federal agency, the dam plays a crucial role in water resource management and climate resilience in the region, providing essential services for fire protection and water storage.

Overall, Mc Fadden Dam serves as a vital infrastructure for water management in Clarke, Iowa, offering storage capacity and flood protection along TR-FOUR MILE CREEK. With its low hazard potential and moderate risk assessment, the dam plays a key role in maintaining water resources and climate resilience in the area. As a privately owned structure regulated by the Iowa DNR, Mc Fadden Dam showcases a commitment to safety and compliance, ensuring the protection of surrounding communities and ecosystems.