▁Its ▁southern ▁termin us ▁within ▁the ▁state ▁is ▁located ▁in ▁Att le bor o , ▁where ▁I - 9 5 ▁enters ▁from ▁P awt uck et , ▁Rh ode ▁Island . ▁It ▁intersect s ▁with ▁U . S . ▁Route   1 ▁( US   1 ) ▁and ▁the ▁northern ▁termin us ▁of ▁I - 2 9 5 ▁within ▁Att le bor o , ▁I - 4 9 5 ▁in ▁Mans field , ▁and ▁US ▁ 1 ▁in ▁Sh aron ▁before ▁arriv ing ▁at ▁an ▁inter change ▁with ▁I - 9 3 , ▁US ▁ 1 , ▁and ▁Route ▁ 1 2 8 ▁in ▁C anton . ▁At ▁this ▁inter change , ▁I - 9 5 ▁begins ▁running ▁concurrent ly ▁with ▁US ▁ 1 ▁and ▁Route ▁ 1 2 8 ▁along ▁a ▁bel t way ▁roughly ▁ ▁outside ▁of ▁Boston . ▁ ▁While ▁its ▁conc urrency ▁with ▁US ▁ 1 ▁ends ▁in ▁D ed ham , ▁its ▁conc urrency ▁with ▁Route ▁ 1 2 8 ▁continues ▁as ▁it ▁meets ▁with ▁express ways ▁including ▁the ▁Massachusetts ▁Turn pi ke ▁in ▁West on , ▁US ▁ 2 0 ▁in ▁W alth am , ▁Route ▁ 2 ▁in ▁Lex ington , ▁US ▁ 3 ▁in ▁Bur ling ton ▁( with ▁which ▁it ▁runs ▁concurrent ly ▁within ▁the ▁town ), ▁and ▁I - 9 3 ▁and ▁US ▁ 1 ▁in ▁Reading ▁and ▁Lyn n field , ▁respectively . ▁I - 9 5 ▁and ▁Route ▁ 1 2 8 ▁split ▁in ▁Pe ab ody , ▁as ▁Route ▁