Hansen Dam, located in Mingo, Iowa, serves multiple purposes including fire protection and as a stock or small fish pond. Completed in 1975, this earth dam stands at a height of 25 feet and has a length of 300 feet. With a storage capacity of 50 acre-feet, the dam also offers recreational opportunities with a surface area of 4 acres for visitors to enjoy.

Managed by the Iowa Department of Natural Resources, Hansen Dam is regulated, inspected, and enforced to ensure its safety and functionality. Despite having a low hazard potential, the dam is classified as having a moderate risk level. While the condition of the dam itself has not been rated, it is continuously monitored and maintained to mitigate any potential risks. With its strategic location along TR-WILLOW CREEK, Hansen Dam plays a crucial role in managing water resources in the area.

Climate and water resource enthusiasts will appreciate Hansen Dam for its contribution to flood control and water management in Story County, Iowa. As a key infrastructure maintained by the state, the dam's presence ensures the protection of nearby communities and wildlife habitats. With its serene surroundings and functional design, Hansen Dam stands as a testament to sustainable water resource management practices in the region.