Sec. 3. (a) The River Ridge Commerce Corridor is established for the area adjacent to either of the following:
(1) The segment of State Road 62 between:
(A) the point where State Road 62 meets Interstate Highway 265; and
(B) the point where State Road 62 meets State Road 3.
(2) The rail line that is parallel to the segment of State Road 62 described in subdivision (1).
(b) The department may place signs designating State Road 62 as the River Ridge Commerce Corridor at appropriate locations within the corridor, as determined by the department.