Frd No 23, also known as Upper Black Vermillion Site 23, is a flood risk reduction structure located in Vliets, Kansas. Owned by the local government and designed by the USDA NRCS, this dam was completed in 1977 and serves the primary purpose of flood risk reduction along the Black Vermillion River. With a dam height of 30 feet and a storage capacity of 179.36 acre-feet, Frd No 23 plays a crucial role in managing water flow and protecting the surrounding area from potential flooding events.

Situated in Marshall County, Kansas, Frd No 23 is regulated by the Kansas Department of Agriculture and undergoes regular inspections to ensure its structural integrity and operational efficiency. With a low hazard potential and a moderate risk assessment rating of 3, this earth dam with a buttress core type helps mitigate flood risks and safeguard the local community from water-related emergencies. Despite its uncontrolled spillway type, Frd No 23 continues to be a reliable infrastructure for water resource management in the region, supported by the Natural Resources Conservation Service and meeting state permitting and enforcement requirements.

As a key component of flood risk reduction efforts in the area, Frd No 23 contributes to the overall resilience of the community against potential water-related disasters. With its strategic location along the Black Vermillion River and its successful track record since its completion in 1977, this dam serves as a critical infrastructure for water resource and climate enthusiasts to study and appreciate the importance of sustainable water management practices in safeguarding communities and ecosystems from the impacts of extreme weather events and flooding.