Mleynek Dam, located in Guthrie County, Iowa, is a privately owned structure designed by the Soil Conservation Service (SCS) with a primary purpose of fire protection, stock, or small fish pond. Completed in 1983, this earth dam stands at a height of 31 feet and spans 267 feet in length, providing a maximum storage capacity of 50 acre-feet and a normal storage of 27 acre-feet. The dam is situated on TR- BAYS BRANCH, under the jurisdiction of the Iowa Department of Natural Resources (DNR), and is regulated, permitted, inspected, and enforced by the state.

With a low hazard potential and a moderate risk assessment rating, Mleynek Dam serves as a vital resource for water management and conservation in the area. Its location in Panora, Iowa, within the Rock Island District, highlights its importance in providing fire protection and supporting local wildlife through stock and small fish pond purposes. Despite being uncontrolled, the spillway type of the dam ensures controlled water release in case of overflow, further emphasizing the commitment to safety and environmental protection. For water resource and climate enthusiasts, Mleynek Dam represents a significant infrastructure contributing to sustainable water management practices in the region.