Randell Lake Dam, located in Grayson County, Texas, serves as a critical water supply infrastructure for the region. Built in 1909, the dam stands at a height of 55 feet and spans 1385 feet, with a storage capacity of 6824 acre-feet. The dam is primarily constructed of earth and stone, with a soil foundation, and is regulated by the Texas Commission on Environmental Quality (TCEQ).

The dam's reservoir, fed by Shawnee Creek, covers a surface area of 311 acres and drains a catchment area of 10.13 square miles. With a maximum discharge capacity of 29,663 cubic feet per second, the dam has undergone structural modifications in 1940 and 2011 to ensure its integrity and functionality. The outlet system includes two controlled gates, 23 Tainter (radial) gates, and one uncontrolled gate.

Despite being assessed as in fair condition as of April 2021, Randell Lake Dam remains a crucial component of the local water management infrastructure. With its history of serving the community for over a century, the dam continues to play a vital role in water supply and resource management in the region.