Dickinson Dam is a dam in Stark County, North Dakota, one and a half miles west of the town of Dickinson. The earthen dam was completed by the United States Bureau of Reclamation in May 1950, impounding the Heart River. The dam has a structural height of 65 feet and is 2,275 feet along its crest. The dam was expanded in 1981, and an auxiliary spill…Dickinson Dam is a dam in Stark County, North Dakota, one and a half miles west of the town of Dickinson. The earthen dam was completed by the United States Bureau of Reclamation in May 1950, impounding the Heart River. The dam has a structural height of 65 feet and is 2,275 feet along its crest. The dam was expanded in 1981, and an auxiliary spillway with bascule gates added.