Waller Pond, located in Whalan, Minnesota, is a privately owned Earth dam structure designed by the USDA NRCS in 1968 for flood risk reduction along the TR-Root River. The dam stands at a height of 30 feet with a hydraulic height matching that, and a structural height of 31 feet. With a length of 350 feet and a storage capacity of 18 acre-feet, Waller Pond serves multiple purposes including debris control, fire protection, and providing a habitat for stock or small fish.

Despite being uncontrolled, the spillway width of 16 feet and the low hazard potential of the dam suggest a moderate level of risk (3 out of 5) associated with its operation. With a drainage area of 0.18 square miles and a maximum discharge of 110 cubic feet per second, Waller Pond plays a crucial role in managing water flow in the region. Although the dam's condition assessment is currently not rated, its strategic location and design make it an essential piece of infrastructure for water resource management and climate resilience in Fillmore County, Minnesota.