Wagner is a privately owned irrigation dam located in Ranchester, Wyoming, along Wagner Draw. Built in 1973 by designer Walter J. Pilch, this earth dam stands at a height of 58 feet and has a storage capacity of 946 acre-feet. With a spillway width of 200 feet and a maximum discharge of 450 cubic feet per second, Wagner plays a crucial role in regulating water flow and providing irrigation to the surrounding area.

Despite its importance, Wagner poses a high hazard potential due to its condition being assessed as fair. Regular inspections are conducted, with the last inspection taking place in June 2021. The dam is state-regulated and inspected by the Wyoming State Engineer's Office, ensuring that it meets safety standards and is maintained properly. With a moderate risk assessment rating of 3, measures for risk management are in place to address any potential issues and ensure the safety of the structure and surrounding area.

Located in Sheridan County, Wagner serves as a vital resource for water management and agricultural purposes in the region. As climate change continues to impact water resources, it is essential to monitor and maintain dams like Wagner to ensure their functionality and safety for both current and future generations. Climate enthusiasts and water resource experts alike can appreciate the significance of Wagner in sustaining water availability and supporting agricultural activities in Wyoming.