Frd No 9-1, also known as Upper Verdigris Watershed Dam 9-1, is a vital structure located in the Halderman Creek in Virgil, Kansas. Owned by the local government and designed by the USDA NRCS, this earth dam serves the primary purpose of flood risk reduction. Completed in 1964, the dam stands at a height of 39 feet and has a storage capacity of 1660.81 acre-feet, with a normal storage level of 167 acre-feet. With a low hazard potential and a moderate risk assessment, the dam plays a crucial role in managing water resources in the region.

Managed by the Kansas Department of Agriculture and regulated by the state, Frd No 9-1 boasts a spillway width of 100 feet and a maximum discharge capacity of 1860 cubic feet per second. Despite its importance in flood risk reduction, the dam's condition assessment is currently not rated, indicating a need for further evaluation. With its location in Greenwood County and proximity to the Kansas City District, this structure serves as a key component in the water infrastructure of the area.

Overall, Frd No 9-1 is a significant earth dam that contributes to water resource management and climate resilience in Kansas. With its strategic design and purposeful construction, this dam plays a vital role in reducing flood risks and ensuring the safety of the local community. As a regulated and inspected structure, Frd No 9-1 stands as a testament to effective water resource management practices and the collaboration between local and state agencies in safeguarding the environment and public safety.