AMP: 88
Location: I-495 and Chelmsford St, Chelmsford
Reassurance shield after Mass. 110.
AMP: 89
Location: I-495 and US 3, Chelmsford
A truck blocked the US 3 exit sign – but, hey, button copy! Exit for 3 north towards Nashua, N.H. and the unnumbered Lowell Connector freeway.
N to MA 110, S to MA 129
E to US-3, W to MA 4/MA 129