Sri Lanka has deep-water ports at Colombo, Hambantota, Galle and Trincomalee. Colombo has the highest cargo volume, with an estimated capacity of 5.7 million TEUs. The port began a large-scale expansion project at a cost of US$1.2 billion in 2008 to increase its capacity and capabilities. The project, headed by the Sri Lanka Ports Authority and built by the Hyundai Engineering and Construction Company, was expected to be completed by 11 April 2012. It consists of four new terminals which can accommodate three berths each, alongside a depth of 18 m (59 ft) (which can be deepened to 23 m [75 ft]). The channel width of the harbour will be and its depth , with a harbour-basin depth of and a turning circle. The project was expected to increase the annual container-handling capacity to about 12 million TEUs and accommodate 12,000-TEU container vessels.