Lake Miami Dam in Iowa is a state-owned structure designed by the Iowa Conservation Commission primarily for recreational purposes. Completed in 1966, this earth dam stands at a height of 32 feet and spans a length of 1178 feet, creating a reservoir with a maximum storage capacity of 2300 acre-feet. Situated on the TR-Bluff Creek in Monroe County, the dam's spillway is uncontrolled with a width of 50 feet, making it a significant hazard potential structure.

With a drainage area of 6.09 square miles and a surface area of 140 acres, Lake Miami Dam provides vital flood control and water supply benefits to the region. The dam's satisfactory condition assessment as of May 2017, along with its moderate risk classification, underscores the importance of regular inspections and maintenance to ensure its continued safety and functionality. As a popular recreational destination, the dam serves as a scenic spot for outdoor enthusiasts to enjoy activities like fishing, boating, and picnicking in the heart of Iowa's natural beauty.