Dd No 124, also known as Wet Walnut Watershed Dam No 124, is a key structure in the state of Kansas for flood risk reduction. Built in 1977 by USDA NRCS, this dam stands at a height of 25 feet and has a storage capacity of 494 acre-feet. Located in Ness County, Kansas, specifically in Alexander, this dam plays a crucial role in managing the flow of Walnut Creek-TR.

With a low hazard potential and moderate risk assessment, Dd No 124 is equipped with an uncontrolled spillway that is 40 feet wide to safely release excess water during heavy rainfall events. The dam is regularly inspected by the Kansas Department of Agriculture to ensure its structural integrity and functionality. Despite being rated as "Not Rated" in terms of condition assessment, the dam continues to serve its primary purpose of flood risk reduction effectively.

As a part of the local government's infrastructure, Dd No 124 is a vital component in the water resource management of the area. Its strategic location and design make it an essential asset for protecting the surrounding communities from potential flooding events. The collaboration between state and federal agencies, along with regular inspections and maintenance, ensures the ongoing safety and functionality of this important dam structure.