TOPSHAM - The Maine Department of Transportation will be closing the southbound Exit 31A ramp off I-295 next Sunday and Monday nights. The closures are scheduled from 10:00 p.m. on Sunday, April 14th to 6:00 a.m. on Monday, April 15th and from 10:00 p.m. on Monday, April 15th to 6:00 a.m. on Tuesday, April 16th. The construction being done is a ramp realignment because of a new Market Basket opening nearby. The contractor on this work is Crooker Construction of Topsham. Market Basket is paying for the construction.