The more than a century-old building was formerly Sons of Italy. It was most recently used as a private event venue, according to its website.
"This is a sad property to see come down. My parents got married here, spaghetti dinners Thursday nights, bingo Friday nights, tons of dances," Carricato said. "Probably every person in Vandergrift has memories of this building."
About 100 people were expected to gather Saturday night at the venue for Lisa Chin's husband's surprise 40th birthday party. Chin left about 4 p.m. after setting up for the celebration.
"I'm glad everyone was out of there," she said. "We all feel lucky."
The building's owner has not decided whether another hall will be constructed.
Officials said the cause of the collapse remains under investigation.