Thompson Dam, located in Cherokee, Iowa, is a privately owned structure with a primary purpose of providing fire protection and serving as a stock or small fish pond. Built in 1961 by the USDA NRCS, this earth dam stands at 28 feet tall and stretches 358 feet in length, with a storage capacity of 50 acre-feet. The dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections to ensure its safety and integrity.

Situated on the TR-Little Sioux River, Thompson Dam plays a crucial role in managing water resources in the region, with a drainage area of 0.44 square miles and a normal storage capacity of 21 acre-feet. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition. The spillway, classified as uncontrolled, helps manage water levels during periods of high flow, with a width of 0 feet. While the dam has not been modified in recent years, it remains a key infrastructure for water management and conservation efforts in the area.

With its strategic location and design, Thompson Dam serves as a vital asset for the local community in Cherokee, Iowa, providing essential water resource management functions while also offering recreational opportunities for residents. As a privately owned structure, the dam demonstrates the importance of collaboration between public and private entities in ensuring the safety and sustainability of water infrastructure. As climate change continues to impact water resources, Thompson Dam stands as a testament to the resilience and adaptability of our water management systems in the face of evolving environmental challenges.