(Newport, RI) -- A Canadian company is going to build a two-level hydroponic greenhouse in Newport's north end. Hydroserre will construct and run the facility which will cover five acres. The company expects to annually grow 750,000 pounds of fresh head lettuce for distribution to local markets in Rhode Island, Massachusetts, New Hampshire, Connecticut and New York. The greenhouse is expected to take up to ten months to build once construction begins later this year.