Duck Slough, also known as Andrews Lake, is a state-regulated fish and wildlife pond located in San Juan County, Colorado. The dam, completed in 1956, stands at 24 feet high and serves as a vital resource for recreation and conservation efforts in the area. With a normal storage capacity of 131 acre-feet and a maximum discharge of 882 cubic feet per second, the dam plays a crucial role in maintaining the ecological balance of the surrounding E Lime Creek watershed.

Despite its low hazard potential and fair condition assessment, Duck Slough poses a high risk level due to its age and the lack of recent risk management measures. The dam's emergency action plan was last revised in 1993, highlighting the need for updated guidelines and preparedness in the event of a potential breach or overflow. With its picturesque location in the heart of Colorado's natural beauty, Duck Slough serves as a reminder of the delicate balance between water resource management and climate resilience in the face of changing environmental conditions.