Swap would give Portland 10 acres of state land near Cumberland County Jail In return, the state would assume ownership of the International Marine Terminal, which it now leases from the city. Share A proposed land swap would transfer ownership of 10 acres near the Cumberland County Jail to the city of Portland in exchange for a marine terminal on Commercial Street. Portland now leases the International Marine Terminal to the state, which will assume ownership if the City Council approves the deal. The state would also take ownership of, and assume maintenance responsibilities for, the Cliff Island wharf, just as it has with other wharves on Casco Bay.