West #1, located in Hotchkiss, Colorado, is a privately owned earth dam with a primary purpose of irrigation. Built in 1950 by RJH Consultants, this structure is regulated by the Colorado Department of Water Resources, ensuring proper inspection, permitting, and enforcement measures are in place. The dam stands at a height of 49 feet, with a hydraulic height of 41 feet and a structural height of 43 feet, providing a storage capacity of 616 acre-feet and a maximum discharge of 735 cubic feet per second.

Despite its fair condition assessment and high hazard potential, West #1 lacks a spillway, relying on slide and uncontrolled gates as outlet structures. The dam's high risk level is attributed to its location on Jay Creek-TR and its limited spillway capacity. With a surface area of 31 acres and a normal storage capacity of 470 acre-feet, West #1 serves as a crucial water resource for irrigation in the Delta County area. While the dam has not been modified in recent years, regular inspections and emergency action plans are necessary to mitigate potential risks and safeguard the surrounding community.