Grantsville, a private-owned irrigation dam located in Tooele County, Utah, stands as a vital resource for the surrounding community. Completed in 1984, this Earth-type dam has a hydraulic height of 77 feet and a structural height of 82 feet, providing a storage capacity of 3,885 acre-feet for irrigation purposes. With a high hazard potential, the dam is regulated by the Utah Division of Water Rights, ensuring its safety through regular inspections and enforcement measures.

Situated along the So Willow and No Willow rivers, Grantsville plays a crucial role in managing water resources in the area, with a maximum discharge capacity of 159 cubic feet per second. Despite its satisfactory condition assessment, the dam's high hazard potential underscores the importance of emergency preparedness and risk management. While specifics on risk assessment and management measures are currently unavailable, the dam's compliance with state regulations and inspection protocols reinforces its role as a reliable water infrastructure asset in Tooele County.

Grantsville's significance as an irrigation dam is further highlighted by its normal storage capacity of 3,370 acre-feet and its contribution to the agricultural landscape of the region. As a private-owned structure under state jurisdiction, the dam's operation and maintenance are crucial for sustaining water availability for irrigation needs. With a history dating back to 1984, Grantsville continues to serve as a key component in water management efforts, showcasing the intersection of water resource management and climate resilience in the region.