Twiss Dam, located in Clearwater, Nebraska, is a private dam designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources. Completed in 1966, this earth dam stands at a height of 15 feet and stretches 633 feet in length, with a storage capacity of 63 acre-feet. Its primary purposes include flood risk reduction and other water resource management activities for the TR-Clearwater Creek.

Despite its low hazard potential, Twiss Dam is currently assessed as being in poor condition as of April 2018. With a history of state inspections and regulatory oversight, the dam remains a crucial structure for water control and management in the area. Its location within the Omaha District underscores its significance in maintaining water resources and climate resilience in Antelope County, Nebraska. Enthusiasts of water resource and climate conservation will find Twiss Dam to be a focal point of interest and importance in the region.