By Sheila AshMotorists traveling in both directions on I-64 in Shelby County can expect delays during the overnight hours Monday and Tuesday due to construction at the overpass on KY 1848.Spokesperson Andrea Clifford with the Kentucky Transportation Cabinet says a bridge is being replaced in the area."The section of I-64 at the Simpsonville exit is going to be closed Monday evening August 30th and Tuesday evening August 31st. This will allow for demolition of the bridge on KY 1848 that goes over the interstate," she said.The interstate will be closed from 7:00pm until 6:00am both days. Traffic will be will be detoured off the exit ramp at Simpsonville and then take the entrance ramp back on to I-64. The new bridge was built as part of a road widening project.Construction is expected to be completed in the summer of 2011.