Costa Allegra Facts:   Year built: 1969 Formerly: Johnson Line's Annie Johnson (1969-1986) MSC Alexandra (1986-1990) Converted 1990 Refurbished: 2004Shipyard: Mariotti Shipyards Genoa, Italy Registery: Italy GRT: 28,430 tons Length: 614.5 feet Beam: 84.6 feet Public Decks: 8 Passengers: 1,000 Crew: 400 Space Ratio: 28