I’ve been watching a narrowboat channel from England and there are very many beautiful brick bridges with a nice arch over the canal. I understand how the arch holds the bridge up.
I don’t understand how they built the arch in the first place without the bricks falling. They were built a couple hundred years ago.
In: 73
Shuttering, temporary wooden supporting structure.
Look up Brunel’s GWR Bridge at Maidstone, wide flat arches, opened 1839. All the pundits said it would fall down when the shuttering was removed. The shuttering was washed away in a storm, the bridge is still in use today.
https://en.m.wikipedia.org/wiki/Maidenhead_Railway_Bridge#
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