Rob Cross tweetz:
My restored photo of the 1925 Owencarrow Viaduct Disaster when winds of up to 120 mph derailed carriages of the train off the viaduct. The roof of a carriage was ripped off throwing four people to their deaths.
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Everything. As It Happens.
Nature can be so destructive. Amazing photo, given a new aura with colouring.
Was that big pile of rocks there? That was a bit lucky, could have been an even bigger disaster if the carriage fell right down.
I wonder if it contributed, creating a Venturi effect which may have pulled the relatively light carriages over the edge. (Venturi effect explained on Wikipedia: https://en.wikipedia.org/wiki/Venturi_effect)
I was in the US during tornado season, and one time I was driving down a highway in Illinois, which is a whole heap of flatness. While a tornado had not struck, still there were high winds, and I passed several large artics (or semis, to use the vernacular) on their sides, the panels of their trailers acting like sails in the high winds.
When first it was built, they used close the M50 bridge over the Liffey to high sided vehicles during high winds. Not sure if they still do, or did they make some sort of deflectors when they refurbished and expanded it.