When I’m somewhere I’ve never been before, I often walk without much of a plan as to where I’m going, to see what turns up. Recently, in Lausanne, it was this plaque on a 1905 multiple-arch concrete bridge:

“Prof. Melan” was slightly famous and we have two of his books in the OSE library, along with a US patent he had for using reinforced-concrete vaulting to create floors in steel-framed buildings.

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