Controlled explosions were carried out on the 50m (160-foot) high two stone pillars of the old railway Castieler Viaduct, which was built between 1913 and 1914 and carries trains on the Chur-Arosa line in the mountainous canton of Graubünden.
The replacement single span steel bridge was already built and waiting near the old bridge ready to be slid into place within two weeks.
However, the Swiss Federal Office for Transport (FOT) has now claimed the railway company did not obtain the correct planning permission to use explosives when removing the original bridge.
The mess up has, understandably, caused outrage in Switzerland. Environmentalists are worried about the impact all that rubble will have on the surrounding ecosystems and many are just worried about the loss of a historic bridge. But how does a mess up like this happen in the first place? Well, it turns out it’s all about permits.