Engineering

Lucy Moses Award: Belvedere Castle

I’ve written about Belvedere a lot, partly because it’s one of my favorite projects of the last few years and partly because it’s a unique structure and therefore posed unique challenges. A summary of my previous posts is here – Belvedere Castle – along with some vintage photos and some construction photos. Our work, performed …

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John A. Roebling Reconsidered

John Roebling, the engineer who designed some of the most important US bridges of the middle third of the nineteenth century, is today somewhat overshadowed by his oldest son, Washington Roebling. After John’s death by accident during the earliest stages of the work on the Brooklyn Bridge, Washington became the chief engineer for that project. …

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Unphotographable

Getting an accurate photo of a large structure can be difficult. With skyscrapers, for example, you have to get far away to reduce the effect of perspective, and that means you lose detail and likely have other structures blocking part of your view. With bridges, it’s a bit easier, as you can use the river …

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Simple Conceptually, Difficult To Build

That’s an action shot of the construction of the Lethbridge Viaduct by the Canadian Pacific Railway, in southern Alberta, sometime between mid-1908 and early 1909. Everything about this is fantastic, in both meanings of the word. The viaduct, like most such structures, is quite simple. A series of braced towers sit on foundations in the …

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The Essence Of Good Engineering

The Library of Congress simply describes this photo as “Bridge over the Susquehanna, Pittston, Pa.” There are a lot of bridges over the Susquehanna River: it’s one of four large rivers in the northeastern US that run more or less north-south (the Susquehanna feeds into Chesapeake Bay, the Delaware feeds into Delaware Bay, the Hudson …

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