Atkisson Reservoir, located in Edgewood, Maryland, is a concrete gravity dam designed by Whitman, Requardt & Smith and completed in 1942. Managed by the US Army Corps of Engineers, this reservoir serves as a vital water supply source in the region, with a storage capacity of 2,510 acre-feet and a normal storage level of 928 acre-feet. The dam stands at a height of 56 feet, with a hydraulic height of 59 feet, and spans a length of 439 feet across the Winters Run.

The reservoir is regulated by the Maryland Dam Safety agency and undergoes regular inspections, with a hazard potential rated as high and a moderate risk assessment level. The spillway, which is uncontrolled and 210 feet wide, helps manage water discharge during peak flow events. Although the condition assessment is not available, the emergency action plan was last revised in 2014, ensuring preparedness for any potential risks or emergencies. With its significant role in water supply and its strategic location within the Philadelphia District of the US Army Corps of Engineers, Atkisson Reservoir stands as a key asset for water resource management and climate resilience in the region.