Illinois River Correctional Center is a medium security adult male correctional facility consisting of a total of 29 buildings, which comprise more than 409,000 square feet. The living units consist of four X-type housing units, one receiving and orientation unit, one segregation unit and a 15-bed health care unit. In addition, the center has a special management unit, which provides special security for inmates housed there. The facility sits on a 100-acre site, with 40 acres enclosed by fencing. The facility also houses general population inmates.