Bridges: steel girder, reinforced concrete arch and concrete box types – Antique Print
(Each image is professionally and digitally cleaned of artifacts such as color bars and extra borders prior to printing.)
Description
Few images capture their era like this historic image of Bridges: steel girder, reinforced concrete arch and concrete box types. It comes from the Snapshots of the Past collection, curated over 25 years for its historical value.
The framed print arrives ready to hang; the unframed option suits custom framing. A fine choice for anyone who loves history, and a gift that gets noticed. Free shipping in the lower 48 states. Snapshots of the Past, founded in 2001, has served tens of thousands of customers worldwide.
Bridges: steel girder, reinforced concrete arch and concrete box types
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Rather than a single structure, this drawing sets three bridge types side by side: a steel girder span, a reinforced concrete arch, and a concrete box design. That comparison is what sets it apart. The Blue Ridge Parkway, built along the crest of the Appalachians from the 1930s into the 1980s, depended on many crossings like these to carry the road over ravines and valleys. Engineers of the period chose among such forms based on span length, site conditions and cost, and the parkway's concrete arches were often faced with local stone to blend with the landscape. A drawing like this shows the trade-offs designers weighed before any construction began.
| Original scan | 14,444 × 9,836 px · prints to 48 × 33 in at 300 dpi |
|---|---|
| Reference | 00022a |
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