NBC July 29, 2018 6:40 pm Officials Provide Comm. Ave. Bridge Construction Update Officials discussing the Comm. Ave. Bridge construction project say the detours are in place and the traffic is expected to be chaotic Monday. US & World Videos 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 2:50 Community mourns Billerica police sergeant killed on duty 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students' 10:42 Multiple people arrested as police clear campus encampments