Harris Park Estates #1, located in Shaffers Crossing, Colorado, is a local government-owned recreational dam situated on Elk Creek. Built in 1955, this earth dam stands at a height of 22 feet and has a structural height of 24 feet. With a storage capacity of 143 acre-feet, the dam covers a surface area of 10 acres and has a maximum discharge of 167 cubic feet per second.

Over the years, Harris Park Estates #1 has undergone modifications in 1962 and 1986 to enhance its foundation, hydraulic, and structural components. The dam is equipped with a slide (sluice gate) outlet gate and an uncontrolled spillway with a width of 8 feet. Despite being classified as having a significant hazard potential, the dam's condition assessment remains satisfactory, with the last inspection conducted in October 2020.

With its picturesque location and recreational purpose, Harris Park Estates #1 serves as a vital water resource for the community while also posing a moderate risk level of 3. As climate and water resource enthusiasts, the unique design and historical significance of this dam make it a fascinating site to explore and study in the context of water management and environmental conservation efforts in Colorado.