Quick-take proceedings under Article 20 may be used for a period of 48 months after July 30, 1998, by the City of Carbondale, for the acquisition of property bounded by the following lines for the Mill Street Underpass Project (which is part of the Carbondale Railroad Relocation Project): a line 300 feet west of the centerline of Thompson Street; a line 100 feet east of the centerline of Wall Street; a line 700 feet north of the centerline of College Street; and the centerline of Grand Avenue.