sentences:  The concurrent segment with I-40 between the split near Lenoir City and downtown Knoxville opened to traffic on December 2, 1961.The route was completed through Chattanooga on July 17, 1963, with the completion of the segment between the split with I-24 and US 11/64 (Bonny Oaks Drive).I-75 was completed through Knoxville in late 1965.