Located in Jefferson County, Colorado, the Harriman Dam is a public utility structure designed by Craig Ullmann with a primary purpose of irrigation. Completed in 2013, this earth dam stands at a height of 15 feet and has a hydraulic height of 15 feet, providing a maximum storage capacity of 963 acre-feet. With a normal storage capacity of 762 acre-feet and a surface area of 65 acres, the dam serves the vital functions of irrigation and water supply in the region.

Managed by the Colorado Department of Water Resources, the Harriman Dam is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. With a high hazard potential and satisfactory condition assessment as of July 2020, the dam poses a moderate risk and is subject to regular inspections and risk management measures. In case of emergencies, an emergency action plan is in place, with the last revision made in December 2018, to meet guidelines and ensure preparedness.

Situated along Weaver Creek-OS in Lakewood, the Harriman Dam features an uncontrolled spillway with a width of 69 feet, capable of discharging up to 736 cubic feet per second. As a crucial water resource infrastructure in the area, the dam plays a significant role in supporting agricultural activities and water supply needs, highlighting its importance in the context of water resource management and climate resilience efforts.