McDonaldton is a privately owned dam located in Brothersvalley Township, Somerset County, Pennsylvania. Built in 1911, this earth dam stands at 16 feet high and spans 419 feet in length, creating a reservoir with a storage capacity of 49 acre-feet. The primary purpose of the dam is for recreation, with a surface area of 8 acres and a drainage area of 0.5 square miles.

The dam is regulated by the Pennsylvania Department of Environmental Protection, with state permitting, inspection, and enforcement in place to ensure its safety and compliance. The dam has a significant hazard potential and has been assessed to be in fair condition. The last inspection took place in April 2018, with a scheduled frequency of every two years. While there are no associated structures or locks, the dam plays a crucial role in managing the flow of TR Buffalo Creek.

Located along TR Buffalo Creek, McDonaldton provides a recreational oasis for locals and visitors to enjoy outdoor activities. With its historical significance and essential role in water resource management, this dam serves as a reminder of the importance of maintaining and monitoring our water infrastructure to ensure safety and sustainability in the face of changing climate conditions.