Heads up, Haverhill: This week’s lane closures on the northbound stretch of Interstate 495 are taking place Tuesday, Nov. 12 through Thursday, Nov. 14. A single right lane of the highway between exits 48 and 49 will be closed from 6 a.m.-2 p.m. to allow for the construction of a new protection barrier, the Massachusetts Department of Transportation said. Signage will be used to alert drivers to the closure, and the 55MPH speed limit is still in place within the construction zone.