Steel Helix Footbridge Unveiled in Calgary

posted on 30 July 2009 | posted in Construction and Design News

Steel Helix Footbridge Unveiled in Calgary
open quote"Of the 14 bridges I have built, there's not one that follows this principle, not one that is done with this purity. And technically, it is a demanding bridge."

Limited by City Hall's demand that no pillars go into the Bow River, and that no high masts interfere with the nearby Eau Claire helipad, the famed architect-engineer designed a webbed, tubular structure that stretches 130 metres across the water with only a slight, one per cent slope.

Unlike almost every other bridge on Earth, the steel helix supports itself, needing no beams, arches, cables or lower supports other than embankments, hidden in the river banks.
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