Last night on Rochdale Canal.... 3 times now, high river water has dug this trench in the towpath. Each time they bring more stone. There are now 3 holes worth of material in the cut. The stone could be dug out with a digger and re used. If they had used concrete the first time, further expense would have been saved. They have repaired some of the locks further down with a concrete towpath, lock 12 for instance, where naughtyfox brought doom and disaster on us all, boxing day 15. There is now yet another pile of crusher run in a compound above the lock, waiting to fill the hole, before it goes in the canal.
repair the same first time ...... normal repair the second time ..... well if the original lasted for a long time maybe just unfortunate that it failed again quickly
If it is repaired again the same way, then someone shouldn't be in that job
There is an inherent problem with the landscape, river is close to canal, there's a bridge adjacent to the lock, so when river is up in flood, as is happening more regularly with climate change, it comes into the canal and down by the lock, taking out the towpath as you see. They did concrete the towpath on a couple of locks further down, for the same reason.
NB Bittern's Boom, 32ft Narrowboat reg'd 1968, moored on the highest mooring on the network.