North Dakota State Penitentiary (Bismarck, North Dakota)

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The North Dakota State Penitentiary (NDSP) in east Bismarck is the main prison complex and houses maximum-security inmates as well as some medium security treatment inmates. The NDSP is the original prison built in the state, and consists of 7 housing units. These include an orientation/reception area in the North Unit, constructed in 1987; the Overflow Unit, constructed in the 1960’s; the East Cell House constructed in 1910; the West Cell House constructed in the 1960’s; the South Unit constructed in 1986, the Treatment Unit built in 1982; and Administrative Segregation constructed in the 1960’s with recent modifications. The maximum capacity at NDSP is 517, however approximately 100 prison cells in the North Unit and the South Unit are double bunked at the current time.