2/7/2012

The first six concrete pontoons that will support the world's longest floating bridge near Seattle will be ready in April. There will be 21 lengthwise pontoons -- each 360 feet long, 5 feet wide and 28.5 feet tall. Each of them also will have 52 honeycomb-like cells inside that give the pontoon more strength and help add buoyancy.

Full Story:
The Seattle Times

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