ABC has more. The faciilty is new. From the Ill. Dept. of Corrections website:

Thomson Correctional Center is a safe maximum-security environment. Prison design, movement patterns and programming options will allow a strong community of order to be maintained. Inmates will be monitored under constant armed and electronic surveillance. Education, mental health services, recreation and skilled development will be available to inmates as mandatory and or voluntary programming options. These choices, under professional guidance, are opportunities for inmates to enrich their lives with the tools necessary for successful living.

Thomson Correctional Center is a Level 1 adult male maximum-security facility comprised of 1,600 cells and eight housing units. The facility also has a 200-bed minimum-security unit. The facility is 146 acres and consists of 15 buildings, totaling 625,000 square feet. Construction in the cell houses is pre-cast, reinforced cement walls. The facility is enclosed by a 12-foot exterior fence and 15-foot interior fence, which includes a dual sided electric stun fence.

Thomson was built in 2001 to ease overcrowding. It never opened due to state budget problems. Some minimum-security inmate have been sent there.