Hagberry, also known as Hackberry Dam, is a privately owned structure located in Idaho's Owyhee County. Built in 1925, this earth dam stands at a height of 23.4 feet and serves multiple purposes, including water storage and management. With a normal storage capacity of 110 acre-feet, Hagberry plays a crucial role in regulating the flow of an unnamed stream that feeds into the Owyhee River.

Despite its low hazard potential and fair condition assessment, Hagberry is subject to state regulation and inspection by the Idaho Department of Water Resources. The dam features an uncontrolled spillway, with a width of 16 feet, and has a moderate risk assessment rating. While it has not undergone significant modifications in recent years, regular inspections are conducted to ensure the safety and integrity of the structure. Overall, Hagberry serves as a key component in the region's water resource management infrastructure, contributing to the sustainable use of water for various purposes.