Mine No 84 - Pond 6 Main is a privately owned dam located in Somerset Township, Washington County, Pennsylvania. Built in 1980, this earth dam stands at a height of 185 feet and has a length of 2900 feet, providing a storage capacity of 6576 acre-feet. Its primary purpose is listed as 'Other', with a satisfactory condition assessment and a high hazard potential. The dam is regulated by the Pennsylvania Department of Environmental Protection and inspected by the Mine Safety and Health Administration.

Situated on TR Pigeon Creek, Mine No 84 - Pond 6 Main plays a crucial role in managing water resources in the region, with a surface area of 85.5 acres and draining an area of 0.16 square miles. Despite being a private structure, the dam is subject to state jurisdiction, permitting, inspection, and enforcement. The last inspection in December 2020 deemed the dam to be in satisfactory condition, although it poses a high hazard potential, highlighting the importance of ongoing risk management and emergency preparedness measures.

With its significant height and storage capacity, Mine No 84 - Pond 6 Main serves as a vital infrastructure for water resource management in Washington County, Pennsylvania. As water resource and climate enthusiasts, it is essential to monitor and ensure the safety and integrity of such structures to prevent potential hazards and safeguard the surrounding communities and environment. The dam's association with the Mine Safety and Health Administration underscores the importance of maintaining rigorous inspection and enforcement protocols to mitigate risks and ensure the long-term resilience of the water infrastructure.