GDE were closed for several hours as investigations commenced. The Barton Highway was reopened on 9 September 2010 after investigations and removal of the collapsed bridge. Construction on the second span started afresh at the end of December 2010 with all contractors taking on board the recommendations made by ACT Workcover relating to worker safety and materials to ensure that the collapse of the old span is not repeated. Interchanges The GDE has multiple interchanges along its length providing access to suburbs and facilities in the Gungahlin and Belconnen districts as well as the Inner North, there are links to several arterial roads. See also Freeways in Australia Freeways in Canberra References External links Video of the extension (Barton Hwy to Belconnen Way) Save The Ridge Work on GDE can restart:ruling Streets in Canberra Two-lane expressways