The Sandgate Flyover is a grade-separated railway flyover that carries the Main North Line across the Kooragang Island line, located in Sandgate, in the City of Newcastle local government area of New South Wales, Australia.

Situated to the west of the Sandgate station, the overpass was built in 2006 by the Australian Rail Track Corporation to allow coal trains to access the Port of Kooragang without conflicting with services on the Main North Line.

At the time of its construction, it was estimated that the project, once completed, would increase bulk coal handling capacity of between 15 and 20 million tonnes (17 and 22 million short tons) per annum.

[1][2] At the time of the construction of the flyover, the main lines were raised over the junction of the coal lines to the Kooragang branch, so that the conflict between trains was eliminated.

[3][4] Adjacent to the flyover lies a siding used by Crawfords Freightlines.