ACT Fire Brigade is currently carrying out atmospheric monitoring throughout Mitchell with no abnormal readings to date.
People within a 10 kilometre radius of the site are still being asked to remain indoors and keep windows closed.
There have been no casualties as a result of the fire.
The Barton and Federal Highways are open as usual.
All roads into Mitchell remain closed, Gungahlin Drive, Wells Station Road and Flemington Road.
There will be significant disruptions to Acton Bus Services on the northside this morning as a result of the road closures. People can call Canberra Connect for more information.