Castle Valley Special Service District in Emery Town Lower is a vital irrigation infrastructure nestled in the heart of Utah's Emery County, along the offstream of Muddy Creek. Managed by the local government, this earth dam structure was completed in 1983 and serves the primary purpose of providing irrigation water to the surrounding area. With a structural height of 10 feet and a storage capacity of 11 acre-feet, this dam plays a crucial role in supporting agricultural activities in the region.

Owned and regulated by the Utah Division of Water Rights, this dam is classified as having a significant hazard potential. While its condition assessment is currently not rated, it undergoes regular inspections every two years to ensure its safety and functionality. Despite not having an Emergency Action Plan prepared or meeting specific guidelines, the Castle Valley Special Service District dam remains a key component of the local water resource infrastructure, contributing to the sustainable management of water in the area. For water resource and climate enthusiasts, this site serves as a fascinating example of how essential irrigation structures support agricultural activities and water management in rural communities.