. >> reporter: this is the c macen benjamin franklin and this is a boeking 747, or as compared to the aircraft carrier, the u.s. s george hw bush. it is the may deny voyage and this is one of the few countries at the moment that can handle something like this side. it has been dredged to accommodate ships and raised the height of eight of its cranes. what port officials herald as the biggest cargo ship to ever visit the united states will mostly stulgts containers. mega ships already dock regularly at ports in asia and have for years, in the u.s. major ports are just starting to make upgrades needed to accommodate mega ships, bringing in bigger cranes and dredging to deeper waters. >> the federal government needs to develop a comprehensive international strategy. the rival of these vessels is a stimulus to have these particularly parts of infrastructure get their act together. >> reporter: oakland and l.a. may have welcomed the benjamin franklin this time, but if doesn't mean they can handle many more such calls. they save fuel and it means less pollution. >> it puts less stress on sh