Frd No 84, also known as Upper Black Vermillion WS Dam 84, is a local government-owned earth dam located in Vliets, Kansas. Built in 1973 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the North Fork Black Vermillion River. With a height of 23 feet and a length of 820 feet, Frd No 84 has a storage capacity of 113.17 acre-feet and covers a surface area of 4.73 acres.

Despite being classified as having a low hazard potential, Frd No 84 is subject to moderate risk based on a rating of 3. The dam features an uncontrolled spillway with a width of 40 feet and does not have outlet gates. While its condition assessment is not rated and inspection frequency is listed as 0, there is no state regulation or permitting associated with this structure. The dam's risk management measures, emergency action plan status, and inundation maps preparedness are all marked as unknown, highlighting areas for potential improvement in the future.

Water resource and climate enthusiasts interested in Frd No 84 will find a structurally sound earth dam that plays a crucial role in mitigating flood risks in the region. With its location in Marshall County, Kansas, this dam underscores the importance of proactive risk management and emergency preparedness for ensuring the safety and resilience of water infrastructure in the face of changing environmental conditions.