The Dorchester Bay Boat Ramp provides access to the waters of Dorchester Bay and the Boston Harbor. The ramp is open year-round and can accommodate boats up to 25 feet in length. The ramp has a paved surface and a floating dock, as well as parking spaces, restrooms, and a picnic area. The ramp is managed by the Massachusetts Department of Conservation and Recreation.

Dorchester Bay Boat Ramp is located off Morrissey Boulevard by Dorchester Bay Basin.