Wrought Iron

Prefabrication – The Past Of The Future

While I rarely have much to do with new buildings, I read various engineering and design journals, so I’m reasonably familiar with the topics of the day. For some time now, there’s been discussion of prefabrication as the future of construction. More accurately, there’s been talk of expanding the extent of prefabrication, as some has …

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A Little Bridge, Far From Home

That is the Bidwell Bar Suspension Bridge near Oroville, California. It is apparently the oldest remaining suspension bridge in the American west and has travelled twice. The first time, before it was constructed, it took a very long journey; after it was decommissioned it moved a shorter distance. My thanks to Cory Rouillard for alerting …

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Slendererer

I feel some pressure to find steadily more extreme examples of structure. Now that I’ve transitioned from stocky trusses to slender ones, what can come next but the spindly example seen above? (Off the main topic, but note the two men standing on the lower chord of the truss and waving, below the second and …

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The Slender Approach

Here’s the best contrast I could find to the heavy bridge at Pearl, Illinois, I talked about recently. That’s the 1889 Smith Avenue High Bridge across the Mississippi River between St. Paul and West St. Paul, Minnesota. That 1905 picture does not give a good sense of the bridge overall – it had 28 spans …

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A Moment In Time, 150 Years Later

That’s the West Main Street bridge in Clinton, New Jersey, spanning the south branch of the Raritan River. Clinton* is in western Jersey, due west of New York City and about two-thirds of the way form NYC to Allentown, Pennsylvania. The Raritan River takes a somewhat circuitous path before joining New York Bay at Perth …

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