posted 8 years ago
Check out gabion walls. I think you could accomplish this better with a gabion system. Very similar to an earth bag but made with stainless or galvanized steel. Rainwater can run right through. When done as a continuous wall, it can be quite strong, particularly if there are curves. No need to protect it from UV or foot traffic. It can become part of the walkway.
The gabions could be filled with any rough material that you may have, including rock, broken pottery, and concrete waste. A nice fine layer could be swept over the top surface, so that it blends seamlessly with the center of the path.
The photo shows pre manufactured baskets. For a low wall like yours, a heavy gauge wire could be used. It would be bent in a u-shape, with the outside vertical portion being higher, so that it can be bent over the top, once the basket is filled. It doesn't have to be flat on the top. It's probably better if the top slopes downward toward the center of the path. That way, when you rake the finishing material around, there is only a small portion of the wire that meets the surface. The life expectancy of something like this depends on the quality of the wire. Dipped galvanized will last much longer than electroplated
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