The skytrain will take Sydney Metro Northwest above ground for four kilometres between Kellyville and Rouse Hill.
It will sit at a height of between 10 metres and 13 metres above ground level and is supported with 130 concrete piers, spaced approximately 39 metres apart. The two new railway stations on the skytrain, Kellyville and Rouse Hill, are elevated and the platforms are above ground.
A landmark 270-metre long cable-stayed railway bridge over Windsor Road at Rouse Hill also forms part of the skytrain. This is similar in design to Sydney's Anzac Bridge.