The Idaho Transportation Department will take the final step in the Expand I-84 project starting Thursday, closing the Centennial Way ramp while re-opening 10th Street eastbound to I-84.The Centennial Way closure begins Thursday at 10 p.m. and is expected to last 60 days. The 10th Street eastbound ramp reopens ten days ahead of schedule on Thursday to accommodate for Centennials' closure.ITD says all construction on Interstate 84 is almost compl…