Located in Elizabeth, Pennsylvania, Monongahela River Locks and Dam 3, also known as Monongahela River Pool 03, is a federal structure managed by the US Army Corps of Engineers. Completed in 1907, this gravity dam plays a crucial role in navigation along the Monongahela River, with a hydraulic height of 16 feet and two locks that are 720 feet long and 56 feet wide each. The dam has a significant hazard potential and a moderate risk assessment rating, with measures in place to manage flood risks and ensure the structural integrity of the dam.

With a normal storage capacity of 16,300 acre-feet and a drainage area of 5,340 square miles, Monongahela River Locks and Dam 3 provides essential flood control and water management functions. The dam's spillway, with a width of 670 feet, is uncontrolled, allowing for the release of excess water to maintain water levels and protect the dam's integrity during severe weather events. The US Army Corps of Engineers continuously monitors and maintains the dam to address flood risks and collaborates with local emergency managers and the public to ensure readiness and preparedness in case of a dam-related emergency. More detailed information specific to this dam will be added in the future, highlighting the critical role it plays in water resource management and climate resilience efforts in the region.