SAGADAHOC COUNTY - The Maine Department of Transportation will be closing some I-295 ramps overnight next week to accommodate paving work. The closure periods will begin at 7:00 p.m and go until 6:00 a.m. Work on the Exit 31 on- and off-ramps in Topsham will happen on the nights of Sunday, July 28th and Monday, July 29th. Work on the Exit 37 on- and off-ramps in Bowdoinham will happen on the nights of Tuesday, July 30th and Wednesday, July 31st. Work on the Exit 43 on- and off-ramps in Richmond will occur on the night of Thursday, August 1st. The contractor on this work is All States Materials Group of Richmond. This work is part of a larger $18.8-million contract.