The Virginia Department of Transportation (VDOT) is beginning the project to improve I-81 N near exit 17 which will result in 24-hour lane closures throughout June.According to a news release, the first lane closure will start at 8 p.m. on Sunday, June 5 and will run until 6 a.m. on Thursday, June 9 to replace the left travel lane and left shoulder of the bridge deck above Route 75.The second lane closure will begin at 8 p.m. on Sunday, June 12, and will last until 6 a.m. on Thursday, June 16.