Jug Creek Upper, also known as Upper Jug Creek Reservoir, is a privately owned dam located in Valley, Idaho. Completed in 1946, this earth dam stands at a height of 32.3 feet and has a maximum storage capacity of 1132 acre-feet. With a primary purpose of irrigation, the dam serves the surrounding area with water from Jug Creek and Louie Creek.

The reservoir covers an area of 85 acres and has a controlled spillway with a width of 20 feet. It has a significant hazard potential and is classified as being in fair condition as of the last assessment in July 2019. The dam is regularly inspected by state authorities and meets permitting, inspection, and enforcement requirements. In case of emergencies, the dam is equipped with an emergency action plan to ensure the safety of downstream communities.

Located within the Walla Walla District, Jug Creek Upper plays a crucial role in water resource management in the region. With its very high risk assessment rating, the dam is closely monitored to mitigate any potential hazards and ensure the continued reliability of its irrigation functions. For water resource and climate enthusiasts, Jug Creek Upper represents a fascinating intersection of infrastructure, sustainability, and natural resource management in the beautiful landscape of Idaho.