The Joondalup Line Pit and Pipe project consisted of the installation of:
• A new main conduit route from Glendalough Station to Stirling Station including pits and pipe installation and UTX
• A new main conduit route north of Stirling station including pits and pipe installation and UTX
• A new main conduit route at Whitfords Station including pits and pipe installation and UTX
• A new main conduit route from Edgewater Station to Joondalup Station Block including pits and pipe installation and UTX
• New motorised isolators at Stirling, Whitford, Joondalup and Clarkson block stations
• Changes to the signalling system at Leederville, Stirling, Whitfords, Joondalup and Clarkson block stations