Lake Eva is a private dam located in Franklin, Tennessee, with a low hazard potential and satisfactory condition assessment. Built in 1969, this earth dam stands at a structural height of 29.5 feet and has a hydraulic height of 26 feet. It has a storage capacity of 74 acre-feet and covers a surface area of 7.1 acres, with a drainage area of 0.12 square miles. The spillway type is uncontrolled, with a spillway width of 0 feet.

Managed by the Tennessee Safe Dams Program, Lake Eva is subject to state regulation, permitting, inspection, and enforcement. The last inspection was conducted in August 2019, with an inspection frequency of 3 years. While the dam poses a moderate risk according to the risk assessment, it meets guidelines for emergency action plans, although an updated inundation map is pending. With its location in a picturesque natural setting, Lake Eva is a vital water resource for the surrounding area and a notable site for climate enthusiasts interested in monitoring the impact of climate change on inland water systems.