Had to dig out a couple of ton of soil/earth at the upper end so it's level at't lower end so the upper end starts of around 2ft under ground with breeze block reinforced edges so the earth doesn't fall in! It has hardcore, pierced plastic ground sheeting with pea gravel on top so drainage should be good. It was always gonna be difficult to sort the wooden framework in sections but thankfully my mate helped out. The most the river has got up the garden is about 2ft below the house brick base so i have to hope it never gets any worse ha ha
Edited by shello, 24 September 2011 - 04:24 pm.