Mount Laurel (Mud Run) is a local government-owned dam located in New Castle Township, Pennsylvania. Built in 1879, it stands at a height of 39 feet and has a length of 1124 feet, with a primary purpose of water supply. The dam holds a storage capacity of 852 acre-feet, with a normal storage level of 622 acre-feet. It is regulated by the Pennsylvania Department of Environmental Protection and undergoes regular inspections to ensure its structural integrity.

The dam's spillway type is uncontrolled, with a spillway width of 55 feet. It has a high hazard potential due to its location along the Mud Run river and a moderate risk assessment score of 3. Despite this, the dam's condition assessment is rated as satisfactory, indicating that it is currently in good operational condition. The dam has seen modifications in 2005, 2013 for hydraulic and structural improvements, and is deemed to meet regulatory guidelines for emergency action preparedness.

Water resource and climate enthusiasts will find Mount Laurel (Mud Run) to be an essential piece of infrastructure for water supply in the Schuylkill County area. Its historical significance, combined with its modern regulatory oversight and risk management measures, make it a fascinating subject for those interested in the intersection of water management, environmental protection, and climate resilience.