BOSTON — Exit renumbering work on a long stretch of Interstate 495 will begin Sunday night, according to the Massachusetts Department of Transportation. The project is part of the state's effort to comply with Federal Highway Administration requirements to have exit numbers based on mile markers. Advertisement Massachusetts previously used a sequential exit numbering method, and if that method continued to be used, the state would lose federal funding. MassDOT's exit renumbering work on I-495 between Middleborough and Amesbury will begin at 8 p.m. Sunday. The sign installations will be broken up into four segments as follows: