Subject to the approval of the Governor and the consent of any department, board, commission, officer or other agency of the State government having control and custody of any land now or hereafter owned by the State, the Department is authorized to take and use such portion as may be deemed necessary for State highway purposes over such land, provided such taking and use by the Department does not interfere with the use of such land by the agency so having control and custody.
605 ILCS 5/4-504