Be on the lookout for something different Thursday morning. The existing I-410 southbound entrance ramp from SH 151 just north of Marbach Road will be closed. Traffic will use the new temporary entrance ramp just south of the existing exit to Lakeside Parkway. The purpose of this is to allow the contractor to work on the Marbach Road bridge and retaining wall. The temporary entrance ramp will be in place until the end of the year.