CAMBRIDGE - On Sept. 1, Cambridge Waterfront Development Inc.  received the final permit needed to begin demolition on the Cambridge Harbor site.

“We appreciate all those who helped get us to this critical development milestone,” said Matt Leonard, CWDI’s Executive Director. “Obtaining all necessary permits requires the coordination and collaboration of various state and local departments and officials, utility companies, consultants, designers, and contractors.”

The demolition plans include the removal of the old Dorchester General Hospital, adjacent Nurses Quarters, Governors Hall slab, associated parking lots, and other hardscapes. Davis Construction, the project’s general contractor, will mobilize their demolition equipment the week of Sept. 5. Demolition is scheduled to be completed by Dec. 31, leaving the site graded and seeded ready for the next phases of development, a statement from the city said.

The various types of debris will be handled in different and appropriate ways. Regulated and salvageable materials have already been removed and properly disposed of; much of the masonry will be crushed and reused as on-site fill with any excess disposed of in the county’s landfill along with general demolition debris, the statement said.