ROBERT JOHN MCBRIDE
My understanding was that the way it was constructed with the limpet mine placed on top of the charges, most of the force would be blown downwards and to the left because it was packed on the side.  A clear indication of this is the fact that there is a hole in the road, indicating the blast went down and towards the left and not up and any damage that occurred on top, would probably have been from shock waves or any shrapnel going up.