Motorists should prepare for travel delays on Interstate 81 in Luzerne County as overnight lane restrictions and periodic closures begin this evening. The Pennsylvania Department of Transportation announced that work will take place on both the northbound and southbound sides of the highway between Exit 159 in Nuangola and Exit 165 in the Wilkes-Barre/Mountain Top area. These restrictions are scheduled to run from 8:00 PM to 6:00 AM through Friday to allow crews to perform essential structural boring. Drivers are encouraged to allow for extra travel time or seek alternate routes during these late-night work hours.