Frd No 40, also known as Upper Black Vermillion WS Dam 40, is a vital structure located in Vermillion, Kansas, designed by the USDA NRCS to serve as a flood risk reduction measure along the Black Vermillion River. Constructed in 1972, this buttress dam stands at a height of 32 feet, with a hydraulic height of 29 feet and a maximum storage capacity of 68 acre-feet. The primary purpose of Frd No 40 is to mitigate flood risks in the area, making it an essential asset for water resource and climate enthusiasts.

Managed by the Kansas Department of Agriculture and regulated by the state, Frd No 40 has a low hazard potential and is currently considered to be in a not-rated condition. While information on its inspection frequency and emergency preparedness is not available, the dam's location and design make it a key infrastructure for flood control in Nemaha County. With its significant role in safeguarding the surrounding community from potential flooding events, Frd No 40 showcases the importance of effective water resource management and climate resilience strategies.

As part of the Natural Resources Conservation Service's portfolio of flood risk reduction structures, Frd No 40 stands as a testament to the collaborative efforts between local government agencies and federal resources to protect communities and the environment. Its presence along the Black Vermillion River ensures that the area is better equipped to handle extreme weather events and potential flooding, highlighting the critical role that infrastructure plays in adapting to changing climate conditions. For water resource and climate enthusiasts, Frd No 40 serves as a tangible example of proactive measures taken to enhance resilience and mitigate the impacts of climate change on vulnerable communities.