A separate unit held juvenile males convicted as adults, as it does today.

The Santa Rita Unit was built in 1982, with the first inmates being received in July 1982.

The Rincon/Santa Rita/Units form a hub, which has buildings for inmate records, health services, maintenance, and a 40-cell central detention unit.

The ADC uses a score classification system to assess inmates' appropriate custody and security level placement.

Prison Inner Peace Program was started in 1989 in the Echo Unit by Michael Todd and Richard Wirta,[2] overseen by Thomas L. Magnuson, Psych Associate II [3] of the Echo Behavioral Health Unit.