The new generation of giant container ships will be able to access Melbourne's port within three years under plans released yesterday by the Bracks Government to deepen the channels leading to the city's docks, the Australian reported. But figures released along with an environmental effects statement reveal the cost of the dredging project has blown out from $545 million to at least $763 million. And Treasurer John Brumby refused to say how much of the burden would be borne by taxpayers and how much by cargo exporters through a proposed increase in the container levy. Shallow areas in the mouth of Port Phillip Bay, the mouth of the Yarra River and the shipping channel between the two prevent about 25per cent of container ships using the port or loading to full capacity.