Dickinson Dam

The earthen dam was completed by the United States Bureau of Reclamation in May 1950, impounding the Heart River.

The dam was expanded in 1981, and an auxiliary spillway with bascule gates added.

The dam creates the Dickinson Reservoir, renamed Edward Arthur Patterson Lake in 1959.

[3] The reservoir holds 8,612 acre-feet (10,623,000 m3) of water, used for agricultural irrigation, flood control, and for Dickinson's municipal needs.

[4] Recreation available at the lake includes camping, fishing and boating.