Twin Lake #1, located in Cedaredge, Colorado, is a privately owned dam primarily used for irrigation purposes. Built in 1889, this earth dam stands at a height of 21 feet and has a storage capacity of 110 acre-feet. With a surface area of 14 acres, the dam is situated on the Surface Creek-TR river or stream, serving as a vital resource for the surrounding agricultural community.

Despite its age, Twin Lake #1 has been well-maintained, with a satisfactory condition assessment and a low hazard potential. The dam has undergone regular inspections, with the last one conducted in October 2013. Although the risk assessment indicates a high level of risk (2), the dam's emergency action plan status and risk management measures remain unspecified. The presence of uncontrolled and valve outlet gates highlights the need for continued monitoring and maintenance to ensure the safety and integrity of the structure.

As a significant water resource in the region, Twin Lake #1 not only supports irrigation activities but also provides recreational opportunities for the community. With its historical significance and functional importance, this dam serves as a reminder of the essential role that water resources play in sustaining both agricultural livelihoods and local ecosystems in Colorado's Delta County.