LEWISTON — Bangor Savings Bank will celebrate the opening of a new, full-service branch at 882 Lisbon St. with a ribbon-cutting ceremony at 10 a.m. on Thursday, Feb. 11. Bank officials and local dignitaries, including Jim Conlon, president and CEO of Bangor Savings Bank and Lewiston Mayor Larry Gilbert, will take part in the event. Refreshments will be served.