LEWISVILLE, Texas – Parts of I-35E in Lewisville will be shut down for a time this weekend as crews will be working to demolish the Main Street Bridge, officials say. Work on the demolition is scheduled to begin at 9 p.m. Friday and last through 11 a.m. Saturday. They will be closed once again at 9 p.m. on Saturday and reopen at 11 a.m. on Sunday.