A series of thunderous detonations rocked the Pontiac Silverdome early Sunday morning, sending up clouds of smoke and thrilling a spectator crowd of hundreds.

After the smoke cleared, a problem became apparent, the Silverdome was still standing.

Officials with the demolition contractor, Detroit based Adamo Group, confirmed that the explosions failed to bring down the steel columns supporting the Silverdome's upper level.

Roughly 10 % of the explosive charges did not detonate due to a wiring issue.  Here's more from Lansing State Journal.

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