Such a shame as these sites are just so fascinating.
Much to my total surprise the big trading wherries actually used them which I thought was not the case.
In many cases you can still see the door ruins and mechanisms for flooding and draining the locks.
I can't see this waterway being fully restored in the near future but at the very east the sites could be approached with a view of improvement.
Definitely worth a visit if it's your sort of thing but you will need a car and a map and a pair of wellies.