Dd No 115 is a local government-owned earth dam located in Lyon County, Kansas, along Troublesome Creek-TR. Designed by the USDA NRCS, this dam serves the primary purpose of flood risk reduction. With a height of 22.5 feet and a length of 1360 feet, Dd No 115 has a NID storage capacity of 262.42 acre-feet, with a normal storage capacity of 27.42 acre-feet. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.

Managed by the Kansas Department of Agriculture, Dd No 115 is regulated, permitted, inspected, and enforced by the state. The dam features an uncontrolled spillway with a width of 60 feet and has no outlet gates. Although the dam's risk assessment is moderate, with a DSAC assigned date unknown, risk management measures and a detailed risk characterization summary are not available. Despite its low hazard potential, Dd No 115 plays a crucial role in mitigating flood risks in the region and highlights the collaborative effort between local government and state agencies in ensuring water resource and climate resilience.