Because of the existence of a large fleet of tankers of size about 50,000 to 100,000 deadweight tons and the high financial investments required for deep-water ports, the USA have so far not installed any such berths.
Ngenxa yobukho bamendu amakhulu ezithuthi ze petroli ezibungakanani bumalunga namakhulu amahlanu amawaka ukuya kwikhulu namawaka obunzima obufileyo beetoni nozaliso-mali anzulu oluphezulu olufunwayo kumazibuko enqanawa amanzi anzulu kumazwe amanyeneyo ase-Europe akukhange kufakwe zindawo zokulala.