Frd No 31, also known as Timber Creek Watershed Dam 31, is a local government-owned earth dam in Winfield, Kansas, designed by USDA NRCS and completed in 1972. This dam serves the primary purpose of flood risk reduction in the Cedar Creek-TR watershed, with a height of 43 feet and a storage capacity of 742.11 acre-feet. The dam has a low hazard potential and is currently in a not rated condition assessment, with a moderate risk level.

Located in Cowley County, Frd No 31 spans 960 feet in length and covers a surface area of 14.25 acres, draining a 1.77 square mile watershed. The dam features an uncontrolled spillway with a width of 40 feet and has no outlet gates. Despite not having a designated inspection frequency or last inspection date, the dam is regulated and permitted by the Kansas Department of Agriculture, ensuring its safety and compliance with state regulations.

With its strategic location and design, Frd No 31 plays a crucial role in mitigating flood risks in the area while also providing valuable water resource management benefits. Its presence underscores the importance of sustainable infrastructure for climate resilience and underscores the collaborative efforts between local government and federal agencies in safeguarding communities against potential natural disasters.