Construction on Seattle’s Climate Pledge Arena hit a major milestone this week, as workers removed the last of temporary supports that were holding the iconic roof up while permanent supports were built.
The roof — which weighs 44 million pounds — had been supported by 72 temporary steel columns and a reinforcement structure for nearly a year to the date. Removing those columns was a complicated process that required meticulous and careful work.
“Now we’re in here, we’ve got less than 12 inches in many areas between new structures and temporary roof elements, we’ve got to get 55 thousand
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