Grassy Lake (Hatch) is a private irrigation reservoir located in Summit, Utah, near EVANSTON, WYO. The dam was completed in 2005 and has a maximum storage capacity of 350 acre-feet, serving as a crucial water source for agricultural purposes in the region. Managed by RBG and Uinta Eng, the dam is regulated by the Utah Division of Water Rights, ensuring proper inspection and enforcement of safety measures.

Situated on a tributary to the West Fork of the Bear River, Grassy Lake (Hatch) plays a vital role in water resource management in the area. With a hydraulic height of 26 feet and a structural height of 26 feet, the dam's significant hazard potential highlights the importance of regular inspections and adherence to safety protocols. While the condition assessment is currently not rated, the dam's inspection frequency of every 2 years demonstrates a commitment to maintaining its integrity.

Grassy Lake (Hatch) serves as a testament to the collaboration between private owners and state regulatory agencies in safeguarding water resources. With its strategic location and crucial role in irrigation, this reservoir stands as a key component in the sustainable management of water in the region. The dam's completion in 2005 marked a milestone in water infrastructure development, ensuring a reliable water supply for agricultural needs while prioritizing safety and regulatory compliance.