Haralson is a vital earth dam located in Thatcher, Arizona, along the Gila River - TR. Built in 1919, this structure serves as a crucial water supply resource for the region, with a storage capacity of 89 acre-feet and a normal storage level of 68 acre-feet. The dam stands at a height of 29 feet, with a hydraulic height of 44 feet, and stretches for 375 feet in length, covering a surface area of 7 acres.

Managed by the Arizona Department of Water Resources, Haralson is regulated, permitted, inspected, and enforced by the state agency, ensuring its structural integrity and compliance with safety standards. With a high hazard potential but a satisfactory condition assessment as of April 2018, the dam presents a moderate risk (3) according to the risk assessment. Despite its age, Haralson continues to play a crucial role in water resource management for Graham County, Arizona, making it an essential piece of infrastructure for both local government and water enthusiasts.