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At 7:53 a.m. on Friday, countless eyes focused on the west side of Oregon State University‘s Reser Stadium in Corvallis.

鈥淔ive, four, three, two, one 鈥� fire in the hole!鈥� a Hoffman Construction crew member yelled. 鈥淟et’s do this, coach.鈥�

鈥淟et’s do this!鈥� OSU Athletic Director Scott Barnes replied.

At that moment Barnes turned two switches and ignited explosives laid in the stadium’s base. A series of small blasts and loud pops followed 鈥� and the large structure fell backward.

Crowds cheered and dust filled the air.

鈥淭he most exciting three and a half seconds of my life,鈥� Barnes was heard saying in the background of the video. It’s viewable online at .

The implosion is part of a $153 million stadium renovation. Friday’s event went exactly as planned, according to Steve Hatch of Dykon Explosive Demolition Corp. The 100-foot-by-120-foot structure was leveled with slightly more than 200 pounds of explosives 鈥� a small amount for Dykon, he said.

Crews started loading the explosives days ago after months of preparation. Two different kinds of explosives were used: dynamite and another designed by NASA. The latter ones, used to cut through the stadium’s steel columns, were originally designed to go through bolts on spaces shuttles as they jettison fuel tanks on takeoff.

Shortly after the dust cleared, Staton Cos. crew members began making roadways through the rubble so that recyclable materials could be extracted, Hoffman superintendent Mark Rado said. A week or two will be needed to prepare the site for wider access, he added.

Then K&E Excavating will start excavation on the north end and move south as Staton finishes its work, Rado said.

鈥淰ery exciting time,鈥� he said. 鈥淚’m still on a high right now; I don’t know about everybody else. But that worked great. We are really happy with the outcome.鈥�

Construction of the stadium’s new west side is scheduled to wrap up before the start of the 2023 football season.