Justus, a privately owned dam located in Greene, Tennessee, on Davis Branch, was completed in 1972 and stands at a structural height of 21.6 feet with a hydraulic height of 15.5 feet. With a storage capacity of 93 acre-feet, Justus serves the primary purpose of water resource management in the area, with a normal storage level of 45 acre-feet. The dam has a surface area of 7.3 acres and drains an area of 1.89 square miles.

Despite being classified as having a low hazard potential, Justus has a moderate risk assessment rating of 3, indicating a need for careful monitoring and risk management measures. The dam is not currently rated for its condition and has not undergone recent inspections, with the last inspection taking place in March 2018. Although there is no state regulation or permitting associated with Justus, its location in a regulated area may warrant attention from water resource and climate enthusiasts to ensure its continued safety and effectiveness in managing water resources in the region.