Permission has been received to dam the side of the river and cut a channel directly south. Unfortunately it appears to be too late for the cafe and it's decking. All material in front of the cafe including the large concrete buffers that were being used as protection are now washed away and lying ten feet down. There is nothing beyong the decking and it is only a matter of time before that too is undermined and destroyed.
Such structures are no match for natural forces.
There is considerable debate about whether more could have been done to save the decking (pain in the neck anyway...) but it is too late now. It is still standing but has very little chance of seeing out the season
The one thing you will get from breaking rocks with a hammer is a lot of broken rocks...