Lake Desmet (A,B,C & Spillway Dikes) is a significant water resource located in the beautiful state of Wyoming. Constructed in 1975, this earth dam stands at a height of 80 feet, with a structural height of 120 feet and a hydraulic height of 70 feet. With a maximum storage capacity of 234,987 acre-feet and a normal storage capacity of 111,827 acre-feet, Lake Desmet plays a crucial role in providing water supply to the surrounding areas.

Situated in Johnson County, Wyoming, Lake Desmet spans across 2,653 acres with a drainage area of 40.5 square miles. The dam is primarily used for water supply purposes and is regulated by the State of Wyoming, with inspections conducted regularly to ensure its safety and integrity. The spillway, with a width of 200 feet, is designed to handle a maximum discharge of 8,520 cubic feet per second, making it a crucial component in managing water levels during periods of high flow.

Despite being classified as having a high hazard potential, Lake Desmet's condition assessment is rated as fair, with the last inspection conducted in July 2019. With its strategic location and vital role in water management, Lake Desmet (A,B,C & Spillway Dikes) serves as a key infrastructure for water resource and climate enthusiasts to study and appreciate the intricate balance between human development and natural ecosystems in the region.