Complex sentence: 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.
Split into simpler sentences: 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.