Hill Dam, located in Red Rock Reservoir, Iowa, was completed in 1972 by the USDA NRCS and serves multiple purposes including fire protection, stock water supply, and recreational use. This private earth dam stands at 25 feet high with a length of 397 feet, providing a storage capacity of 40 acre-feet. The dam is regulated by the Iowa DNR and is inspected regularly to ensure its safety and functionality.

Despite its low hazard potential, Hill Dam is considered to have a moderate risk level of 3. While the dam has not been rated for its condition, it meets state regulatory requirements and is equipped with an uncontrolled spillway. The surrounding area, including TR-Coal Creek and the 0.35 square mile drainage area, benefit from the water storage and recreational opportunities provided by Hill Dam, making it a valuable resource for both the local community and the environment.

With its strategic location near Red Rock Reservoir and its important role in water resource management, Hill Dam plays a crucial role in the local ecosystem and economy. As water resource and climate enthusiasts, it is essential to monitor and support the maintenance and potential improvements of this dam to ensure its continued effectiveness in providing water supply, recreational opportunities, and environmental benefits for years to come.