Oak Creek, located in Crook, Wyoming, is a privately owned irrigation dam completed in 1976 by designer Donald J. Mathesen. This earth dam stands at a height of 41 feet and serves multiple purposes including fire protection, stock, small fish ponds, and irrigation. With a maximum storage capacity of 2500 acre-feet and a normal storage of 915 acre-feet, Oak Creek covers a surface area of 105 acres and drains an area of 45 square miles.

Despite its significant hazard potential and poor condition assessment, Oak Creek has a moderate risk rating and is regulated by the Wyoming State Engineer's Office. The dam features an uncontrolled spillway with a width of 90 feet and is equipped with slide (sluice gate) outlet gates. While last inspected in April 2020 with a 5-year inspection frequency, Oak Creek's risk management measures and emergency action plan status are currently undocumented. Overall, Oak Creek presents an intriguing case study for water resource and climate enthusiasts interested in dam infrastructure and risk assessment in the western United States.