Crowley's newest heavy-lift series deck barge 455-5 was christened and launched May 16 at Gunderson Marine Shipyard in Portland, Oregon - the latest in a bevy of new vessel deliveries for Crowley already this year. Christened by Mary Beth Davis, the wife of Rich Davis, the BP manager for the Liberty Rig, the 400 ftlong by 105 ft wide heavy-lift barge will be used to transport the world's largest land based drilling rig for Parker Drilling and BP. Crowley's Bruce Harland, vice president of contract services in Alaska…