South Creek in Washington County is a privately owned irrigation dam located in Rockville, Utah. Managed by the Utah Division of Water Rights, this dam was completed in 1988 and stands at a hydraulic height of 86 feet, with a structural height of 91 feet. With a storage capacity of 2250 acre-feet, it primarily serves the purpose of irrigation for the surrounding area.

The dam has a drainage area of 18 square miles and a maximum discharge of 70 cubic feet per second, making it a crucial water resource for the region. Despite being classified as having a high hazard potential, the dam is in satisfactory condition according to the most recent inspection in October 2020. With its strategic location on South Creek, this structure plays a vital role in water management and agricultural activities in the area.

Enthusiasts of water resources and climate in Utah will find South Creek Dam an intriguing example of private ownership and state regulation working together to ensure water security and safety for the community. Its historical significance, combined with its modern functionality, makes it a noteworthy site for those interested in the intersection of water management, infrastructure, and environmental stewardship.