Big Oak is a private recreational dam located in Maury, Tennessee, along the TRIBDOUBLE BRANCH CREEK. Built in 1985, this earth dam stands at 23 feet tall with a hydraulic height of 16 feet and a length of 477 feet. It has a storage capacity of 304 acre-feet, with a normal storage level of 114 acre-feet and a surface area of 16.6 acres. Despite its high hazard potential, the dam is currently in satisfactory condition and is regulated, permitted, inspected, and enforced by the Tennessee Safe Dams Program.

The dam features an uncontrolled spillway with a width of 80 feet and does not have any outlet gates or associated structures. The primary purpose of Big Oak is for recreation, and it is situated within the Nashville District. The last inspection was conducted in July 2020, with a frequency of one inspection per year. With a moderate risk assessment score of 3, there are no emergency action plans in place, but the dam meets regulatory guidelines and is managed to mitigate potential risks. For water resource and climate enthusiasts, Big Oak presents an interesting case study of a privately owned recreational dam with important regulatory oversight and risk management measures in place.