Lannom Dam, located in Union Mills, Poweshiek County, Iowa, is a private dam designed by the USDA NRCS for fire protection, stock, or small fish pond purposes. Completed in 1990, this earth dam stands at a height of 30 feet and spans 400 feet in length, with a storage capacity of 141 acre-feet and a surface area of 10.1 acres. The dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections, enforcement, and permitting to ensure its safety and compliance with state regulations.

Situated on TR- Sugar Creek, Lannom Dam serves as a crucial water resource for the surrounding area, with a low hazard potential and a moderate risk assessment rating. The dam has not been rated for its condition assessment, but it is monitored for any potential risks and management measures. Despite its uncontrolled spillway type, the dam has a relatively low risk level and is equipped to handle emergency situations, although specific emergency action plans are not currently in place. Overall, Lannom Dam plays a vital role in water management and conservation efforts in the region.

Owned and operated by a private entity, Lannom Dam is an essential infrastructure for water supply and management in Poweshiek County. With its strategic location and purpose, the dam provides valuable benefits for fire protection, livestock, and recreational fishing activities. As a key feature in the local landscape, Lannom Dam exemplifies the intersection of water resource management and climate adaptation, showcasing the importance of sustainable infrastructure development in safeguarding the environment and community well-being.