Basin No. 1, also known as the Enl of 6043r, is a privately owned earth dam located in Crook, Wyoming, near the city of HULETT. Completed in 1958, this dam serves multiple purposes including fire protection, stock watering, and small fish pond management. With a height of 20 feet and a hydraulic height of 15 feet, Basin No. 1 has a storage capacity of 210 acre-feet and covers a surface area of 39 acres.

Despite its low hazard potential, Basin No. 1 is currently rated as being in poor condition, according to a recent inspection in April 2021. The dam features an uncontrolled spillway with a width of 35 feet, and no outlet gates for water release. The risk assessment for Basin No. 1 categorizes it as having a moderate risk level (3), indicating the need for potential risk management measures to ensure its continued safety and functionality.

Water resource and climate enthusiasts interested in the maintenance and regulation of dams for various purposes, such as fire protection and wildlife management, may find Basin No. 1 to be a fascinating case study. Its location along Left Creek in Wyoming, its historical significance dating back to the late 1950s, and its current condition and risk assessment provide valuable insights into the challenges and considerations involved in managing and maintaining essential water infrastructure in the face of changing environmental conditions.