Steel Bridges through Chicago's River Canyon

Steel Bridges through Chicago's River Canyon is an original illustration set in Chicago River, Illinois, USA. It lies in mid-latitudes, where the climate is hot-summer humid continental.

A tour boat moves along the Chicago River beneath a dark steel bascule bridge. Pale stone towers, an Art Deco setback crown and sheer glass skyscrapers crowd both banks, while the lower Riverwalk sits below the traffic level and the street grid crosses the water at short intervals.

Why does a working river run through a canyon of so many architectural eras?

The river supplied an early transport corridor and then became the organizing seam of a rapidly rebuilding commercial core. Expensive central land encouraged height, while repeated fires, new steel frames and changing design ideals left contrasting generations of towers side by side. Movable bridges preserve navigation beneath the dense street grid, so water, bridge machinery and the vertical architectural canyon all follow from the same constrained downtown geography.

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