Portland Exposition Building

Convention center in Portland, Maine Portland Exposition BuildingThe ExpoAn NBA G League game at The Expo in 2011Portland Exposition BuildingLocation within MaineShow map of MainePortland Exposition BuildingLocation within the United StatesShow map of the United StatesLocationPortland, MaineCoordinates43°39′23″N 70°16′38″W / 43.65640°N 70.27730°W / 43.65640; -70.27730OwnerCity of PortlandOperatorPortland Parks & RecreationCapacity3,000ConstructionOpenedJune 7, 1915 (1915-06-07)Cost$80,944ArchitectFrederick A. TompsonTenantsPortland Bulldogs (PPS)Maine Roller Derby (WFTDA; 2008–present)Maine Celtics (NBAGL; 2009–present)Websitewww.portlandmaine.gov/1164/James-A-Banks-Sr-Portland-Exposition-Bui The James A Banks Sr Portland Exposition Building, also known as The Expo, is a sports and convention center building complex in Portland, Maine. Much expanded since the original building was constructed in 1914, the complex now includes five inter-connected buildings with 24,000 square feet of exhibition space and ten meeting rooms. It is adjacent to the Hadlock Field and the Portland Ice Arena. Phish, Ani Difranco, Natalie Merchant, The Monkees, and Rusted Root have