depots were at Milsons Point and Kurraba Point. The Sydney Harbour pilot boat, Captain Cook (1893), also relied on coal brought to Sydney by the 'sixty-milers'. Botany Bay Although far less important than Sydney Harbour as a coal port, some coal was unloaded at the "Government Pier" (or "Long Pier")—constructed in 1885—at Botany on the northern shore of Botany Bay, near where Hill Street joins Botany Road today. The coal unloaded here was for nearby industrial users. Coal for the nearby Bunnerong Power Station—opened in 1929—came by rail. Coal was also sometimes unloaded at wharves located on the banks of the Alexandra Canal (also known as Shea's Creek). The two bridges across the Alexandra Canal—the road bridge at Ricketty Street and the railway bridge—formerly had lifting spans to allow ships to pass. Botany Bay was, in those days, a shallow port with sandbanks and the Alexandra Canal too was shallow; both could only be used by smaller ships. Decline and end of the trade Lake Macquarie ceased to be a coal port by the 1940s. The Swansea Channel was no longer dredged after the 1930s, and could no longer be used by even the small steamships that had used Lake Macquarie as a port. The coastal coal carrying trade from the northern part of the southern coalfields ended relatively early, as the southern coalfield ocean jetties closed; the last two were the Bulli Jetty, (closed 1943) and the South Bulli Jetty at Bellambi (closed in 1952). Coal was last shipped from Wollongong Harbour in 1933. The remaining coastal trade from the southern coalfields used the one remaining port, Pt Kembla, and continued until the 1960s. Pt Kembla is now a coal export port.The demand for bunkering coal declined, as coal-fuelled steamships became less common in the 1950s and 1960s. The 1950s saw the end of coal-fired steam-powered passenger ferries on Sydney Harbour; the last coal-burner, Kubu, was withdrawn from service in 1959. The mechanised coal hulk, Fortuna, was converted to a coal barge in 1949. She ceased working altogether in 1953, and was towed to Putney Point and later scrapped. In 1949, the wharves at Pyrmont were reconstructed and coal loading operations moved to White Bay at the Balmain Coal Loader. The Ball's Head Coal Loader, which was mainly used to load bunker coal, ceased being used in 1963 and closed, for the first time, in 1964. The Manly Gasworks