The canal and river trust state on their website that….. If there aren’t any bollards or rings, use your mooring stakes if the ground is suitable. DO NOT ATTEMPT TO HAMMER INTO CONCRETE OR OTHER HARD SURFACES. It is my understanding that the reason for not driving stakes through concrete or Tarmac is to avoid causing damage as can be seen at many other locations where it eventually causes the surface to break up.
The picture above is at Cowroast and next to the water point. There were plenty of suitable moorings just back from here and also plenty of mooring space below the lock. Come on Canal and River Trust ,set a better example please !!!