Buhl Park, located in Mercer, Pennsylvania, is a privately owned recreational area with a dam constructed in 1919 along Thornton Run. The dam stands at a height of 14 feet and spans a length of 540 feet, providing a storage capacity of 74.4 acre-feet for the surrounding area. The primary purpose of the dam is for recreation, offering a surface area of 8 acres and a drainage area of 0.38 square miles.

Managed by the Pennsylvania Department of Environmental Protection, Buhl Park's dam is regulated and inspected regularly to ensure its structural integrity. The dam has been deemed to have a high hazard potential, but its condition is currently assessed as satisfactory. Despite its age, the dam continues to serve its purpose effectively, providing a safe and enjoyable environment for water resource and climate enthusiasts to explore and appreciate the natural beauty of the area.