Morr Dam, also known as Yocum Dam, is a privately owned structure located in Lucas County, Iowa. Built in 1958 by the USDA NRCS, this earth dam stands at a height of 18 feet and stretches 470 feet in length. Its primary purpose is for fire protection, stock, or as a small fish pond, with a storage capacity of 91 acre-feet and a surface area of 6.6 acres.

Situated on the TR-Wolf Creek near Rathbun Reservoir, Morr Dam is regulated by the Iowa Department of Natural Resources and undergoes regular state inspections and enforcement. Despite its low hazard potential and moderate risk assessment, the dam's condition remains unrated, with the last inspection conducted in October 1960. With a drainage area of 0.32 square miles and a maximum discharge capacity of 33 cubic feet per second, this dam plays a crucial role in water resource management in the area.

While Morr Dam may not be a high-profile structure, its significance in providing fire protection and supporting local wildlife cannot be understated. As a key component of the water infrastructure in Lucas County, Iowa, this earth dam serves as a vital resource for the community and highlights the importance of efficient water management practices in the face of changing climate conditions.