Raven Run No 3 is a vital earth dam located in West Mahanoy Township, Pennsylvania, regulating the flow of Lost Creek for water supply purposes. Completed in 1885, this dam stands at a height of 40 feet and spans 1080 feet in length, with a storage capacity of 278 acre-feet. The dam is under the jurisdiction of the Pennsylvania Department of Environmental Protection and is subject to regular inspections, enforcement, and permitting to ensure its structural integrity and safety.

Despite its age, Raven Run No 3 is assessed to be in fair condition with a high hazard potential. The dam's reservoir covers 14 acres and drains a 0.7 square mile watershed, providing essential water resources to the surrounding area. With a normal storage capacity of 215 acre-feet, the dam plays a crucial role in managing water supply in Schuylkill County. Additionally, the dam has emergency action plans in place to mitigate risks and ensure the safety of downstream communities in case of any unforeseen events.

As a significant infrastructure for water resource management, Raven Run No 3 serves as a testament to the historical engineering efforts in Pennsylvania. With ongoing monitoring and maintenance, this earth dam continues to play a crucial role in sustaining water supply and protecting the local environment. For water resource and climate enthusiasts, Raven Run No 3 stands as a reminder of the importance of infrastructure resilience and the need for sustainable water management practices in the face of changing climate conditions.