Minneapolis: Roof implosion carried out flawlessly

source: StadiumDB.com

Minneapolis: Roof implosion carried out flawlessly After long preparations it took only a few seconds to drop down the entire cable roof of Hubert H. Humphrey Metrodome. This marks the end of old stadium's cover and another phase of its demolition.

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On Sunday, the cables that supported Metrodome’s famous roof were severed as construction crews set off about a dozen explosive charges.

Mortenson Construction said before the blasts that the noise would have a lower decibel level than pyrotechnics used after a Vikings touchdown. Still, the Star Tribune reports the noise prompted about a half-dozen calls to police from people who wondered what was going on.

The Metrodome is being torn down gradually to make way for a new $975 million Vikings stadium. The new structure will be located partly on Metrodome's blueprint. Steel installation for the new stadium is expected to begin in August.

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