Four people died on Friday when the two crane tandem lift of a 43 metre long steel beam, went wrong, dropping it 12 metres into the road below.
The 43 metre steel box section, said to weigh 209 tonnes, is part of the elevated rail track for the new Taichung Mass Rail Transit System, in Taiwan.
The falling box landed on one car, killing the female driver outright, while three construction workers reportedly working inside the section were also killed. The drivers of four other cars, struck by the falling section were badly injured, one of them critically.
The cause of the incident has been blamed on a wire rope sling failure and poor distribution of the load between the two cranes. causing an overload situation. Video we have seen would seem to confirm that. See live link video report.
The recoil shock effect caused by the sudden release of the load, caused the crane to jump out of its outrigger pads, but miraculously it remained upright, inspite of the rear outriggers on one crane punching through the road surface.
Investigators will be looking at why a challenging lift such as this was carried out over an open road during the evening rush hour. One witness claims that the lift was brought forward to beat a Saturday deadline in order to avoid a financial penalty.