Cobb Lake, located in Larimer County, Colorado, is a privately owned reservoir primarily used for irrigation purposes. The earth dam, standing at 58 feet high, was completed in 1953 and has a storage capacity of 28,200 acre-feet. With a normal storage level of 22,300 acre-feet, the reservoir covers a surface area of 765 acres and serves a drainage area of 2 square miles.

Managed by the Colorado Division of Water Resources, Cobb Lake poses a high hazard potential due to its size and location. Despite this, the dam's condition is rated as satisfactory, with the last inspection conducted in May 2020. The spillway, of uncontrolled type and 130 feet wide, aids in managing excess water flow. Additionally, the reservoir has a maximum discharge capacity of 9,110 cubic feet per second, ensuring effective flood control measures.

As a vital water resource in the Cache La Poudre River basin, Cobb Lake plays a crucial role in supporting agricultural activities in the region. With its strategic location and storage capacity, the reservoir contributes to the sustainable management of water resources while also serving as a potential recreational site for residents and visitors alike.