The idea is to make a small recessed line, just under the top piece, for instance by adding a 2x4 to the stack.
Dieter came by and suggested he could replace the current rotten boards with natural stone - estimated cost $4000. This idea would unfortunately preserve the flare form. He promised to leave good spacing so we can later remove the concrete without damaging the walls. So I said OK. He will not mortar the stones (which represent at least 1/2 the cost), so I can later dismantle and rebuilt in other shape.
Dieter also put in basic low voltage lighting along wall. It is kind of pathetic, just marking the edge of the driveway, not lighting up - though I am not sure I often need it really lit?
