Located in Marshall County, Iowa, the Sietmann Dam is a private-owned structure with a primary purpose of fire protection, stock, or small fish pond. Built in 1961 by the USDA NRCS, this earth dam stands at a height of 22 feet and has a length of 430 feet, providing a storage capacity of 55 acre-feet. The dam is regulated, permitted, inspected, and enforced by the Iowa Department of Natural Resources, ensuring its safety and compliance with state regulations.

Situated on TR-Alloway Creek, the Sietmann Dam serves as a crucial water resource for the surrounding area, with a surface area of 3.9 acres and a drainage area of 0.25 square miles. Despite its low hazard potential and moderate risk assessment, the dam's condition is currently not rated. Although it does not have outlet gates or a controlled spillway, the dam's uncontrolled spillway type allows for the safe release of excess water during high flow events, minimizing the risk of flooding downstream.

Overall, the Sietmann Dam plays a significant role in providing water for fire protection, livestock, and recreational activities in Kellogg, Iowa. With its historical significance dating back to the 1960s, the dam continues to be a valuable asset for the community and a testament to the importance of proper water resource management and climate resilience.