AMP: 91
Location: Princeton St and North Rd, North Chelmsford, Chelmsford
No reassurance shield after the Route 4 junction.
AMP: 92
Location: Princeton St and Groton Rd, North Chelsmford, Chelmsford
As we enter the heart of North Chelmsford, we’ll approach Route 40. Keep left for 40 west to Groton. Keep right for 3A north to Nashua, N.H.
N to MA 40, S to MA 110
