 The towns of Hadley and Amherst, home to the main campus of the University of Massachusetts Amherst, are accessible from I-91 exits in Northampton via Route 9.Continuing north, I-91 enters Hatfield, and where it begins a straight section—nearly without a bend in the road.Several exits provide access to US 5 and Route 10 in Hatfield and Whately before entering Deerfield.