High Quality Content by WIKIPEDIA articles! The New Haven Coliseum was a sports-entertainment arena located in downtown New Haven, Connecticut. Construction began in 1968 and was completed in 1972. The Coliseum was officially closed on September 1, 2002 by Mayor John DeStefano, Jr., and demolished by implosion on January 20, 2007. The arena's formal name was The Coliseum - New Haven Veterans Memorial, but most locals simply referred to it as "The Coliseum." The Coliseum could hold 11,171 people at full capacity, and occupied 4.5 acres (18,000 m²) of land next to the Knights of Columbus Building and faced the Oak Street Connector/Route 34 downtown spur.