The implosion of Ocean Tower on South Padre Island, Texas, set a new record as the tallest reinforced-concrete structure ever to be imploded. The unfinished 31-story condo tower took 12 to 15 seconds to fall after workers set off more than a ton of explosives. "The eyes of the engineering world were on this project," said Mark Loizeaux, the president of Controlled Demolition Inc.

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