Mulvihill Dam, located in Carlisle, Iowa, is a privately owned structure designed by NRCS for fire protection, stock, or as a small fish pond. Completed in 1998, this earth dam stands 28 feet tall and spans 558 feet in length. The dam has a storage capacity of 60 acre-feet, with a normal storage level of 17 acre-feet and a surface area of 3.2 acres, serving the purpose of protecting the area from fire hazards and providing water for livestock or recreational fishing.

Situated on the TR- North River, Mulvihill Dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections to ensure its safety and compliance with state regulations. With a low hazard potential and a moderate risk assessment rating, the dam is considered to be in good condition, although it has not been officially rated. While the dam currently has an uncontrolled spillway and no outlet gates, it remains an important water resource for the surrounding area and a key feature for water enthusiasts interested in water management and climate resilience.

Overall, Mulvihill Dam plays a crucial role in water management and conservation efforts in Madison County, Iowa. With its strategic location and purposeful design, the dam serves as a vital resource for fire protection, livestock watering, and recreational activities. As climate change continues to impact water resources, the importance of dams like Mulvihill in ensuring water availability and safeguarding against potential hazards becomes increasingly evident, making it a significant structure for both water resource management and climate enthusiasts to study and appreciate.