Kelly Dam, located in Thayer, Iowa, is a privately owned structure designed by the NRCS and regulated by the Iowa DNR. Completed in 2002, this earth dam stands at 27 feet high and stretches 352 feet in length. Its primary purpose is for fire protection, stock, or a small fish pond, with a storage capacity of 82 acre-feet and a surface area of 3.6 acres.

Situated on TR- Fourmile Creek, Kelly Dam has a low hazard potential and a moderate risk assessment rating. While the dam has not been rated for condition assessment, it is inspected, permitted, and regulated by the state of Iowa. With a spillway type of uncontrolled and a spillway width of 2 feet, the dam serves its intended purposes effectively while ensuring the safety and security of the surrounding area.

Despite its relatively small size, Kelly Dam plays a crucial role in water resource management and climate resilience in Union, Iowa. With its careful design, regulation, and maintenance, the dam provides essential services for fire protection, stock watering, and small-scale aquatic habitat support. As water resource and climate enthusiasts, we appreciate the efforts that go into managing structures like Kelly Dam to ensure the sustainable use of water resources for both human and environmental needs.