Pa-479, located in Hanover Township, Pennsylvania, is a local government-owned dam designed by the USDA NRCS for flood risk reduction along the TR Harmon Creek. Completed in 1969, this earth dam stands at a height of 63 feet and spans 650 feet in length, with a storage capacity of 343 acre-feet. With a hazard potential rated as high, the dam has been assessed as satisfactory in condition, indicating its ability to effectively mitigate flood risks in the area.

Managed by the Pennsylvania Department of Environmental Protection, Pa-479 is regulated, permitted, inspected, and enforced by state agencies to ensure its proper functioning and safety. The dam serves as a crucial infrastructure for flood control in Washington County, Pennsylvania, with a primary purpose of flood risk reduction. Despite its high hazard potential, the dam has a satisfactory condition assessment, highlighting its effectiveness in protecting the surrounding community from potential floods.

With a history of successful flood risk reduction since its completion, Pa-479 remains an essential structure in the region's water resource management efforts. As climate change continues to increase the frequency and intensity of extreme weather events, the continued maintenance and monitoring of Pa-479 will be crucial in safeguarding the community against the impacts of flooding. The dam's satisfactory condition assessment and regulatory oversight demonstrate a proactive approach to water resource management in the face of a changing climate.