Road’ is completed, running four miles east and west of Pykes Creek Reservoir. 1972 - Bacchus Marsh bypass. opened 30 June 1972, by the Hon. Sir Henry Bolte, GCMG, MP, at a cost of A$4.3m. 1972 - Gordon section. opened 5 May 1972, by the Board's chairman, Mr R E V Donaldson, at a cost of A$2.2m. 1973 - Pentland Hills to Myrniong section. completed from Korkuperrimul Creek to the Lion Park interchange, early 1973. 1974 - Pentland Hills section. ‘west of Bacchus Marsh’ opened 1974. 1975 - Myrniong bypass opened 3 October 1975, by the Minister for Transport, the Hon. E. R. Meagher, CBE, ED, at a cost of A$3.28m. The bypass of Myrniong completed '80 km of dual carriageways between Melbourne and Ballarat'. 1978 - Ballan bypass. opened 15 June 1978, by the Hon. J. A. Rafferty, Minister for Transport, at a cost of A$9.8m. 1983 – Wallace and Bungaree bypass opened 9 March 1983, by the Premier of Victoria, the Hon. John Cain MP. The bypass cost A$23.6m. 1987 – Melton bypass. The 'freeway work' was opened to traffic on 7 July 1987, with the remainder of works expected to be completed by April 1988. The bypass cost A$44.2m. 1989 – 5.6 km bypass of Dimboola opened in May. 1993 - Ballarat bypass. The first stage, a single carriageway section from Woodmans Hill to the Midland Highway, is opened in December 1993, at a cost of A$62m. 1994 - Ballarat bypass. The second stage of the initial single carriageway by-pass is opened to traffic in December 1994. 1995 - Ballarat bypass. Second carriageway opened to traffic between Woodmans Hill and Gillies Street in December 1995, at a cost of A$25m. 1998 - Ballarat bypass. The final section opened in February 1998, The final stage featured the duplication of the original single carriageway bypass from Gillies Street to the Sunraysia Highway. 2001 - The new elevated Hopkins Road Interchange was opened to traffic on 12 July 2001, at a cost of $13.1 million. Before the construction of the new interchange, the intersection of Hopkins Road (Melton-Werribee Road) with the Western Freeway at Rockbank was improved using Black Spot Program funds in 1989 and 1991, but a long-term solution to the congestion and crashes at this location was the construction of an elevated interchange. 2009 – Deer Park bypass opened to traffic on 5 April 2009, at a cost