Engineering trick to strengthen retaining walls, and rock delievery

Rocks delivery, and an Engineering trick to strengthen retaining walls.

This engineering technique is used by civil designers when making bridges and highway ramps, and it can be used at home to strengthen retaining walls tremendously.

I did an experiment with it last year with the kids, and wouldn't you know it, I get a perfect opportunity to use it with the pond build.

Music credits:

Closer by Jay Someday | https://soundcloud.com/jaysomeday
Music promoted by https://www.free-stock-music.com
Creative Commons Attribution 3.0 Unported License
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