The Three Mile Lake Sediment Dam in Iowa, completed in 1999, stands as a vital resource for managing sediment and water flow in the region. Owned by the state and regulated by the Iowa DNR, this earth dam serves a primary purpose beyond flood control. With a height of 26 feet and a length of 480 feet, it stores 122 acre-feet of water, providing essential storage for the surrounding area.

Located in Union County, Iowa, near the city of Three Mile Lake, this dam on Three Mile Creek plays a crucial role in managing water resources in the region. With a low hazard potential and a moderate risk assessment rating, the dam's condition is currently not rated. Despite its uncontrolled spillway and limited inspection history, the dam continues to serve its purpose effectively, demonstrating the importance of proper water resource management in the face of changing climate conditions.

As climate change impacts water resources worldwide, the Three Mile Lake Sediment Dam stands as a critical infrastructure for mitigating sedimentation and controlling water flow in Iowa. With state jurisdiction and regulatory oversight, this dam ensures the safety and efficiency of water management practices in the region. As water resource and climate enthusiasts, understanding the significance of structures like the Three Mile Lake Sediment Dam is essential for preserving and protecting our natural resources for future generations.