Desoto Dam, located in Pottawattamie, Iowa, serves as a crucial structure along the Missouri River, managed by the U.S. Army Corps of Engineers. Completed in 1960, this earth dam stands at 25 feet high and spans 2950 feet in length, providing a vital source of water storage for the area. Its primary purpose is to create a Fish and Wildlife Pond, supporting both aquatic habitats and recreational activities for enthusiasts in the region.

The dam's design, with a stone core and a soil foundation, ensures its resilience in managing water flow and storage effectively. With a normal storage capacity of 7261 acre-feet and a drainage area of 31 square miles, Desoto Dam plays a significant role in regulating water levels and supporting the diverse ecosystems along the Missouri River. Despite its low hazard potential, regular inspections and maintenance ensure the dam's structural integrity remains satisfactory, with the last assessment conducted in August 2020.

Desoto Dam not only safeguards the local environment but also provides a scenic and recreational spot for visitors to enjoy. With a rich history of modifications to enhance its structural and hydraulic capabilities, this dam stands as a testament to the harmonious coexistence of water resource management and environmental conservation. As a focal point for the Fish and Wildlife Service, Desoto Dam serves as a vital link in maintaining the delicate balance between human needs and ecological preservation along the Missouri River.