On Saturday a bunch of people got together above the soccer field to make some self-supporting arches out of bamboo. They are based on a Leonardo da Vinci design for a temporary bridge. We saw some versions online, mostly made from milled lumber, but Jeff thought it would be fun to use our local bamboo.
Leo's drawing.
We bundled the bamboo for strength and to create flat surfaces. We had to incorporate some notches to keep the cross members from slipping. The arches were unstable, but they held themselves up with no fasteners.
Paige, Billy, and Mike making bundles of bamboo.
Here are the four arches we made. The one in front and the one in the back are bamboo. The one on the left is made from lumber, and in the middle Jeff and friends are assembling another from lumber. Click on it to see more detail.
Olga Ronay also sent over a few pictures from the afternoon:
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