Lemke Dam, located in Adair County, Iowa, serves multiple purposes including fire protection, stock watering, and small fish pond management. Built in 1969 by the USDA NRCS, this private dam stands at a height of 28 feet and stretches 600 feet in length, with a storage capacity of 297 acre-feet. Situated on the TR-South Fork Middle River, Lemke Dam is regulated by the Iowa DNR and undergoes regular inspections to ensure its structural integrity.

Despite its low hazard potential, Lemke Dam is considered to have a moderate risk level, with a rating of 3 out of 5. The dam's spillway is uncontrolled, and while it has not been modified in recent years, its condition is currently not rated. The surrounding area covers a surface area of 30 acres, serving a drainage area of 0.5 square miles. With its primary purpose being the protection of local resources and livestock, Lemke Dam plays a crucial role in water management and conservation efforts in the region.

As a vital component of the local water resource infrastructure, Lemke Dam provides essential support for fire prevention, agricultural activities, and habitat preservation. With its strategic location and functionality, this earth dam remains a key asset in the management of water resources and climate-related challenges in Adair County, Iowa.