Preston Lower Dam, located in White Pine County, Nevada, along the White River, was completed in 1932 primarily for irrigation purposes. The dam is privately owned and regulated by the Nevada Division of Water Resources. With a height of 30 feet and a length of 2050 feet, the dam has a storage capacity of 250 acre-feet and a surface area of 24 acres.

Despite its significant hazard potential and poor condition assessment, Preston Lower Dam remains a vital structure for fire protection, stock watering, and small fish pond management in the area. The dam features an uncontrolled spillway with a width of 30 feet and a maximum discharge capacity of 1300 cubic feet per second. The inspection frequency for the dam is every 3 years, with the last assessment conducted in April 2021.

In light of its historical significance and ongoing importance for water resource management in the region, Preston Lower Dam represents a valuable piece of infrastructure that warrants continued monitoring and potential risk management measures. As water resource and climate enthusiasts, it is crucial to stay informed about the condition and regulatory oversight of such structures to ensure their safety and sustainable use for the surrounding community and ecosystem.