Annabella is a privately owned irrigation dam located in Annabella, Utah, along Cottonwood Creek. Built in 1973 by the USDA NRCS, this earth dam stands at a height of 14 feet with a hydraulic height of 9 feet and a length of 575 feet. With a storage capacity of 230 acre-feet, Annabella serves as a vital water resource for the surrounding agricultural community.

Managed by the Utah Division of Water Rights, Annabella is subject to state regulation, inspection, and enforcement to ensure its safety and functionality. Despite being rated as having a significant hazard potential, the dam's condition assessment remains unrated, highlighting the need for ongoing monitoring and maintenance. The dam's last inspection was conducted in June 2020, with a scheduled frequency of every 2 years.

As a key infrastructure for irrigation purposes, Annabella plays a crucial role in water management within the Sevier County region. With its proximity to the city of Annabella and its historical significance dating back to the 1970s, this dam serves as a testament to the importance of sustainable water resource management in the face of changing climate conditions.