Twin Lakes, located in Montrose, Colorado, is a privately owned irrigation reservoir completed in 1951. With a dam height of 23 feet and a storage capacity of 184 acre-feet, the reservoir is primarily used for irrigation purposes. The dam is of earth type with a stone core and is regulated by the Colorado Division of Water Resources, ensuring proper inspection, permitting, and enforcement protocols are in place. The reservoir is situated along the Roubideau Creek-TR and covers a surface area of 14 acres.

Despite its low hazard potential and fair condition assessment, Twin Lakes poses a high risk due to its location and potential impact in the event of an emergency. The reservoir is equipped with slide and uncontrolled outlet gates, and has not undergone any modifications in recent years. The last inspection was conducted in July 2015 with a six-year inspection frequency. With a spillway width of 14 feet and a maximum discharge of 149 cubic feet per second, Twin Lakes remains an important water resource for the surrounding area, contributing to irrigation and agricultural activities in the region.