Roellen, located in Dyer, Tennessee, is a dam regulated by the Tennessee Safe Dams Program. Built in 1982, this earth dam stands at a structural height of 31 feet with a hydraulic height of 15 feet, serving the primary purpose of water storage. With a storage capacity of 106 acre-feet and a normal storage level of 15 acre-feet, Roellen covers a surface area of 4.9 acres and drains an area of 0.21 square miles. Despite its uncontrolled spillway type and low hazard potential, the dam is deemed to be in satisfactory condition as of its last inspection in November 2018.

Roellen, situated along the North Fork Forked Deer River, falls under the jurisdiction of the Memphis District and is not associated with any federal agencies in terms of ownership, funding, design, construction, regulation, or inspection. The dam does not have any outlet gates or associated structures, and its emergency action plan status, inundation maps, and risk management measures are currently undocumented. Representative David Kustoff (R) oversees this area in Congress, and the dam's risk assessment indicates a moderate risk level of 3, though specific details on risk characterization and management remain unspecified.

This local government-owned dam, known for its modest size and storage capacity, plays a crucial role in water resource management in the region. As climate change continues to impact water availability and quality, understanding and maintaining infrastructure like Roellen becomes increasingly vital. With its strategic location and functional design, the dam serves as a key component in the broader efforts to safeguard water resources and mitigate potential risks associated with flooding and water scarcity in the area.