Located in Garfield County, Colorado, Stillwater #1 is a privately-owned earth dam with a primary purpose of irrigation. Completed in 1939, this structure spans 1500 feet in length and stands at a height of 75 feet, providing critical water storage of up to 7410 acre-feet. The dam's design includes an uncontrolled spillway with a width of 125 feet, ensuring proper water release during high discharge events.

Despite its significant storage capacity, Stillwater #1 has been assessed as having a high hazard potential and an unsatisfactory condition as of October 2020. The dam's risk assessment indicates a moderate risk level, prompting the need for proactive risk management measures. With a history of state regulation, inspection, and enforcement, the dam remains under the jurisdiction of the Colorado Division of Water Resources, ensuring continued compliance with safety standards and protocols.

As a pivotal component in the irrigation infrastructure of the Bear River watershed, Stillwater #1 serves as a vital resource for agricultural activities in the region. Its strategic location in the city of Yampa and proximity to the Bear River highlights the importance of sustainable water resource management in the face of changing climate conditions. Enthusiasts of water resources and climate resilience will find Stillwater #1 to be a compelling case study in the intersection of infrastructure, regulation, and environmental stewardship.