Planning, procurement and construction activities were undertaken between October 2008 and October 2009, including trackwork, signalling, civil works (retaining walls, earthworks, bridges etc) and service relocations across the length of the project (36km), and station improvement works. Although some major works were suspended in October 2009, construction continued on high priority works such as stations, service relocations and design. Major works re-commenced in September 2010 for construction of the freight line from Enfield West to Leightonfield incorporating associated civil, track and signalling works, Sefton Dive excavation and pump station installation, major service relocations (including HV), Sefton Triangle bridge construction and Enfield West and Sefton signal commissioning. Other works include Liverpool civil works, Casula Access road construction, Campbelltown civil works, Glenlee Junction signal commissioning and station improvement works. The majority of the work will be completed in 2011 and all works will be completed in the 1st Quarter of 2012.