In the end, the old workhorse exhaled its last breath, sagged in the middle and collapsed with a silent and steady heave.
It took just 35 minutes Saturday to deflate the Metrodome's signature fabric roof, providing both a symbolic end of an era as well as a meaningful start to the construction on the new $1 billion Vikings stadium in its place.
By April, all traces of the Dome will be erased from the Minneapolis skyline, replaced by a glassy new behemoth in 2016.
The scheduled deflation went without a hitch, despite nagging worries about wind and adverse winter weather.
Minnesota Sports Facilities Authority Vice Chairman Bill McCarthy called it "a sad and exciting day at the same time. I don't want to forget what this building has meant to many of us, the Vikings, Twins and Gophers fans and the many high school and college games that have been played here."
MSFA officials, longtime employees and construction workers each turned off power to the fans that support the roof at 7:15 a.m. — a move that permitted the Dome's 10 acres of Teflon-coated fiberglass fabric to slowly sink. Relief vents were opened, as well as 10 exterior doors, as the deflation process began under gray, snowy skies.
When it was done, the 31-year-old stadium looked like a concave petri dish, rimmed with snow.
There was a bit of uncertainty attached to the task because the Dome's roof has never been deflated — intentionally. On four previous occasions, it collapsed after heavy snows and hurricane-force winds, most recently in 2010.