River Boundary Town Merrimack River Interstate 495 Haverhill Little River Hanover Street Newbury Parker River Central Street Bridge Newbury Ipswich Ipswich Mills Dam Ipswich Essex River Apple Street Essex Ebben Creek Grove Street Essex Alewife Brook Cherry Street Gloucester Walker Creek Route 133 Gloucester Bass River Dam Beverly Crane Brook Interstate 95 Danvers Porter Brook Poplar Street Danvers Forest River Railroad Bridge Salem North River Howley Street Salem Saugus River Hamilton Street Saugus Mystic River Amelia Earhart Dam Somerville Charles Charles River Dam Boston Neponset Neponset River Dam Boston, Milton Weymouth River Railroad Bridge Weymouth Straights Pond Hull Street Cohassett Weir River Foundry Pond Dam Hingham North River Route 3 Northbound Pembroke South River Willow Street Marshfield Jones River Main Street Kingston Taunton River Three Mile River Dighton Muddy Cove Brook Elm Street Dighton Lewin Brook Swansea Print Works Dam Swansea Cole River Dam Swansea Assonet River Tisdale Pond Dam Freetown Acushnet Main Street New Bedford E. Br. Westport R. Old County Road Westport Agawam River Route 6 Wareham Weweantic River Horseshoe Pond Dam Wareham Pocasset River Shop Pond Dam Bourne Quashnet River Route 28 Falmouth Childs River Barrows Road Falmouth Santuit River Mill Road Mashpee Bumps River River Road Barnstable Maraspin Creek Commerce Road Barnstable Bass River North Dennis Road Yarmouth Sesuit Creek Route 6a Dennis Quivet Creek Route 6a Dennis Herring River Reservoir Dam Harwich Mill Brook Mouth Chilmark Fulling Mill Brook Trib upstream of Pond Chilmark Roaring Brook Mouth Chilmark .