Twin Lakes, also known as West Lake, is a state-owned water resource located in Larimer County, Colorado. This picturesque lake, with a surface area of 23 acres, was completed in 1904 primarily for recreational purposes, including fishing and wildlife habitat. The dam at Twin Lakes is an earth structure, standing at 15 feet high and 330 feet in length, with a storage capacity of 247 acre-feet and a maximum discharge of 100 cubic feet per second.

Managed by the Colorado Department of Water Resources, Twin Lakes is regulated, permitted, inspected, and enforced to ensure its safety and functionality. The dam has a low hazard potential and a satisfactory condition assessment as of its last inspection in 2013. Despite being uncontrolled, the spillway at Twin Lakes is 4 feet wide to manage excess water flow. With its serene location and recreational opportunities, Twin Lakes is a valuable water resource for both locals and visitors to enjoy in the Fort Collins area.