Upper Medicine Creek 390-B is a significant earth dam located in Curtis, Nebraska, designed by the USDA NRCS to mitigate flood risks along the S Brushy Creek. Completed in 1975, this dam stands at a height of 71 feet and has a storage capacity of 6494 acre-feet, serving the primary purpose of flood risk reduction in the region. The dam covers a drainage area of 34.3 square miles, with a maximum discharge capacity of 23279 cubic feet per second, offering essential protection to the surrounding area.

Managed by the local government and regulated by the Nebraska Department of Natural Resources, Upper Medicine Creek 390-B is inspected every three years to ensure its structural integrity. With a satisfactory condition assessment as of October 2018, this dam has a significant hazard potential due to its size and location. Additionally, the dam has not been modified in recent years and does not fall under the jurisdiction of the US Army Corps of Engineers, highlighting its importance in the local flood control infrastructure.

Water resource and climate enthusiasts will appreciate the crucial role that Upper Medicine Creek 390-B plays in safeguarding the community from potential flood events. With its strategic location, impressive height, and substantial storage capacity, this earth dam serves as a vital asset in the flood risk reduction efforts in Frontier County, Nebraska. As a state-regulated structure with a satisfactory condition assessment, Upper Medicine Creek 390-B exemplifies successful collaboration between local government entities and the USDA NRCS in ensuring water resource management and climate resilience in the region.