sh, a 1.6-mile-long temporary work zone was in place for overnight pavement resurfacing. The project began at 9 p.m. on May 28 and was scheduled to conclude at 5 a.m. the following morning. The work zone included closures of the southbound center lane, right lane and right shoulder. The posted speed limit remained 65 mph through the area. Weather conditions were reported as clear and dry. What's next: The NTSB said the investigation remains ongoing. Federal investigators are working alongside the Virginia State Police, the Virginia Department of Transportation and the Federal Motor Carrier Safety Administration to determine the probable cause of the crash and identify potential safety recommendations aimed at preventing similar future incidents.