Frd No 7-7, also known as Upper Verdigris Watershed Dam 7-7, is a significant earth dam located in Virgil, Kansas, within the Greenwood County. Constructed in 1963 by USDA NRCS, this dam serves the primary purpose of flood risk reduction along Holderman Creek. With a dam height of 39 feet and a hydraulic height of 36 feet, Frd No 7-7 has a storage capacity of 985 acre-feet and a drainage area of 4.13 square miles.

Owned by the local government and regulated by the Kansas Department of Agriculture, this dam has a low hazard potential and a moderate risk assessment rating. The dam's structure consists of a buttress core type with an uncontrolled spillway that is 40 feet wide. Despite not having any outlet gates, Frd No 7-7 plays a crucial role in managing water flow and reducing flood risks in the region.

With its strategic location and design, Frd No 7-7 showcases the importance of effective water resource management in mitigating climate-related risks. As an essential infrastructure in the Upper Verdigris Watershed, this dam stands as a testament to the collaborative efforts between local government agencies and federal entities like the Natural Resources Conservation Service in safeguarding communities and ecosystems from potential water-related hazards.