This is a photo of the bridge door with 3 tracks at top level and 2 at lover level.

That is a photo showing you the door lifting.  As you can see both levels open and close together.

Here you see the door fully open with a view to the hinge and the door handle.

This shows you the layout from the other end with a view to the lifting door and 2 tracks of the main line with a third line with a buffer for a shunting yard for goods trains to enable main lines to pass. The other 4 are passenger main lines.