Frd No 31, also known as Wakarusa Watershed Dam 31, is located in Eudora, Kansas, and is owned by the Local Government. This earth dam, designed by USDA NRCS, was completed in 1971 with a primary purpose of flood risk reduction. Standing at a height of 40.3 feet and a length of 1048 feet, the dam has a normal storage capacity of 86 acre-feet and serves the Wakarusa River watershed.

Managed by the Kansas Department of Agriculture, this dam is state-regulated and undergoes regular inspections to ensure its safety and functionality. The dam has a high hazard potential and is rated in fair condition, with a moderate risk assessment score of 3. In case of emergencies, there are currently no Emergency Action Plans (EAP) prepared, but the dam is equipped with an uncontrolled spillway with a width of 70 feet. With a drainage area of 1.45 square miles, Frd No 31 plays a crucial role in mitigating flood risks in the region and protecting the local community from potential water-related disasters.

Water resource and climate enthusiasts will find Frd No 31 to be a significant infrastructure in the Wakarusa River watershed, serving as a vital flood risk reduction measure in Douglas County, Kansas. With its moderate risk assessment and fair condition, ongoing inspections and maintenance are essential to ensure the dam's continued effectiveness. As part of the state-regulated water infrastructure, Frd No 31 highlights the importance of proactive monitoring and management of dams to safeguard communities and water resources from the impacts of flooding and water-related emergencies.