Non Potable Reservoir Dam 1, located in Colorado Springs, is a federal-owned structure designed by SKIDMORE, OWINGS, AND MERRILL with a primary purpose of flood risk reduction. Completed in 1961, this earth dam stands at a height of 50 feet with a hydraulic height of 41 feet, offering a maximum storage capacity of 95 acre-feet. Its spillway, with a width of 23 feet, is uncontrolled, allowing for a maximum discharge of 820 cubic feet per second.

Managed by the US Air Force, Non Potable Reservoir Dam 1 is regulated by the Department of Water Resources, with inspection and enforcement measures in place to ensure its safety and functionality. The dam's hazard potential is classified as significant, with a moderate risk assessment rating. While its condition assessment is currently unavailable, emergency action plans have been prepared and updated to meet guidelines, ensuring the safety of surrounding areas in case of a potential breach.

The dam's location on Lehman Run in El Paso County, Colorado, underscores its vital role in flood risk reduction and irrigation. With a surface area of 5.8 acres and a drainage area of 5 square miles, Non Potable Reservoir Dam 1 plays a crucial role in water resource management within the region, highlighting the intersection of infrastructure, climate resilience, and environmental stewardship.