CurlingMan13
Upon further investigation and looking into MassDOT records, the road while not on an official truck route is not listed with truck restrictions.  MassDOT lists it as "Open to all vehicles"

https://gis.data.mass.gov/datasets/massgis::massgis-massdot-roads/explore?location=42.166426%2C-71.470069%2C17.68