Black Lake #1, located in Eagle County, Colorado, is a public utility dam on Black Gore Creek, serving primarily for water supply. Built in 1939, this earth dam stands at 31 feet tall with a hydraulic height of 25 feet and a structural height of 73 feet, providing a storage capacity of 642 acre-feet. The dam has a surface area of 28 acres and a drainage area of 1 square mile, with a maximum discharge capacity of 3600 cubic feet per second.

Despite being categorized as having a high hazard potential, Black Lake #1 is currently assessed to be in fair condition as of the last inspection in July 2020. The dam has undergone modifications in 1993 to improve its foundation, hydraulic, mechanical, and structural components. With an emergency action plan in place and regular inspections conducted, the dam is managed to mitigate risks and ensure the safety of surrounding communities in the event of a potential failure. Overall, Black Lake #1 serves as a vital infrastructure for water management in the region, highlighting the importance of sustainable water resource practices in the face of climate challenges.