Jefferson Road bridge and roundabout -- aerial photo

The roundabout at Jefferson Road, the new Jefferson Road Bridge and the Kanawha Turnpike are shown in this undated aerial photo.

Editor's note: This story has been updated with new information.

Overnight construction closures have been extended around the Jefferson Road roundabout, connector ramps and Kanawha Turnpike in South ÂÒÂ×ÄÚÉä. Expect the closures — which were planned to be completed by Thursday morning —to now last until Saturday morning, according to a news release from the West Virginia Division of Highways.