 It continued northwest until a steel girder bridge took it over A40 road, onto another embankment that took the line to what is now the Chiltern Line.Here it joins the Great Western and Great Central Joint Railway from Northolt Junction, which ran alongside it into High Wycombe railway station.In 2008, Parliament passed the Crossrail Act to build a new cross-London line with its services terminating at Maidenhead.