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Tag: teflon
Roadbuilding
Portland engineers use dish soap to move century-old bridge
Engineers in Portland, Oregon, had to get creative when they needed to replace the Sellwood Bridge. Cracks had begun to appear in the support beams of the 100-year-old bridge, and, as our sister site, Equipment World, reported, the structure’s unique design forced the engineers to move the bridge in one whole 1,100-foot piece. The engineers […]
July 10, 2013
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How to move a bridge with dish soap
When cracks began to form in the Sellwood Bridge’s supports, engineers in Portland, Oregon were faced with an extreme challenge when it came to replacing the nearly century-old bridge: they had to move the whole thing at once. According to Popular Mechanics, the engineers wanted to slide the existing bridge over a bit to create […]
July 3, 2013
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