of both the SNETT and the Blackstone River Greenway (formerly the Blackstone River Bikeway). Between Central Street, Millville, and the Triad Bridges, a short side trail provides access to the Blackstone Canal's Millville Lock, the best preserved on the canal. East of Blackstone, improvement work is proceeding west from Grove Street in Franklin. East of Grove Street, the ROW is still occupied by a railroad track. At Prospect Street in Franklin, where a former overpass was replaced by a fill, a new tunnel was completed under the road in 2020. A tunnel was built at Rte. 126 in Bellingham when the existing highway overpass was replaced. The trail was designated as a National Recreation Trail in 1994, having been acquired in 1984 by the Massachusetts Department of Environmental Management. References External links Southern New England Trunkline Trail Department of Conservation & Recreation Rail trails in Massachusetts State parks of Massachusetts National Recreation Trails in Massachusetts Parks in Worcester County, Massachusetts Parks in Norfolk County, Massachusetts