This list is intended to contain all significant canals and aqueducts in the Commonwealth of Massachusetts, USA. It includes both vanished waterways and those that still exist. Blackstone Canal, Grafton Broad Canal, Cambridge Broad Brook Canal, Ludlow Cape Cod Canal, Sagamore First Level Canal, Holyoke Fort Point Channel, Boston Hampshire and Hampden Canal, Hampshire and Hampden Counties Hecla Canal, Blackstone Lechmere Canal, Cambridge Lowell canals Eastern Canal Hamilton Canal Lawrence Wasteway Massachusetts Wasteway Merrimack Canal Merrimack Wasteway Northern Canal Pawtucket Canal Western Canal Long Pond Canal, Lakeville Madaket Ditch, Nantucket Mattakeset Herring Creek, Edgartown Middlesex Canal, Middlesex County Mill River Diversion, Easthampton Mother Brook, Dedham North Canal, Lawrence Northfield Mountain Tailrace Tunnel, Millers Falls Salem Beverly Waterway Canal, Beverly Second Level Canal, Holyoke South Hadley Canal, South Hadley Third Level Canal, Holyoke Turners Falls Canal, Turners Falls Massachusetts Canals Canals Canals