Clark Dam, located in Decatur County, Iowa, serves multiple purposes including fire protection and as a small fish pond. Built in 1988, this earth dam stands at 32 feet high and spans 655 feet in length, with a storage capacity of 479 acre-feet. Situated on Kilgore Creek, the dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspection and enforcement to ensure its safety and functionality.

Despite its low hazard potential, Clark Dam is considered to have a moderate risk rating of 3 due to its location and potential impact in the event of a breach. The dam is equipped with an uncontrolled spillway and has a surface area of 22.5 acres, serving as a vital resource for the local community. With a drainage area of 0.93 square miles, the dam plays a crucial role in managing water resources and protecting the surrounding area from potential flooding.

As a key structure in the Rock Island District, Clark Dam is an essential component of the region's water infrastructure. With its strategic design by SCS and state-regulated maintenance, the dam continues to fulfill its primary purposes while contributing to the overall resilience of the water system. For water resource and climate enthusiasts, Clark Dam offers a fascinating case study in dam management and the intersection of human development with natural ecosystems.