Keenen Dam, located in Jasper County, Iowa, is a privately owned structure designed by the USDA NRCS and regulated by the Iowa DNR. Completed in 1964, this earth dam serves multiple purposes including fire protection and as a small fish pond. With a height of 34 feet and a length of 376 feet, Keenen Dam has a storage capacity of 63 acre-feet and covers a surface area of 4.7 acres, with a drainage area of 0.16 square miles.

Despite being classified as having a low hazard potential, Keenen Dam is considered to have a moderate risk level, with a condition assessment that is currently not rated. The last inspection of the dam was conducted in 1977, emphasizing the need for ongoing maintenance and monitoring. The dam is equipped with an uncontrolled spillway and does not have outlet gates or locks associated with it. While the dam has not undergone any modifications in recent years, it is essential for water resource and climate enthusiasts to stay informed about its status and any potential risks associated with it.

Overall, Keenen Dam stands as a vital structure in the Rock Creek Lake area, contributing to fire protection and water storage for the local ecosystem. With its historical significance and continued relevance, it serves as a reminder of the importance of maintaining and monitoring dams to ensure the safety and sustainability of water resources in the region.