On 14 August 2010, the eastern duplication bridge of the GDE, over the Barton Highway, partially collapsed. The new bridge was under construction when it collapsed. ACT Police, ACT Ambulance Service and the ACT Fire Brigade attended the scene and freed one man who was trapped under the rubble. At least 9 people were taken to the Canberra Hospital for treatment and another 5 were injured however there were no critical injuries, all those affected were working on a new span of the bridge. The Barton Highway and northern GDE were closed for several hours as investigations commenced.