I've always been curious about the specifics, but info is limited. The scope of damage was much larger than just the glass factory though, so I imagine someone had to come in and clean everything out. I'm sure plenty of it just ended up in the river.

>Property damage ran into the millions. The full force of the storm hit the U.S. Glass House (never worked again), Copperweld, the High School Stadium, and the Steel City Lumber Company. Sheets of corrugated steel were ripped from Copperweld and tossed far up the hill. The roof of the Reliance Hose Co. was dumped in the entrance way of Copperweld Office Building which had been severely damaged by flying debris. Copperweld’s new office building (2 years old) built in the excess of $500,000.00 was “practically in shambles”. The heaviest losses were in the casting department, the rolling mill, ground rod department, laboratory and the engineering departments. Gratefully, the mill was closed for the annual summer vacation or the loss of lives may have been heavy.

>Glassport Memorial Stadium damages were estimated at $100,000.00. Heavy steel floodlights were bent and twisted, one set of lights was flung over a car parked in front of the Roller Rink. The steel bleachers were crumpled like paper and huge holes were punched in the concrete wall. Broadway Roller Rink on Ohio Avenue had a group of approximately 25 teenagers inside when the wind virtually disintegrated the building. The roof was torn off and the walls collapsed, trapping the youngsters inside. By the grace of God, none of the youngsters were seriously injured but the building was never used again.

>The Petrosky Hotel was seriously damaged. Mr. William Petrosky and Mr. Robert Martin’s dead bodies were found in the debris.”

https://www.tornadotalk.com/glassport-pa-f3-tornado-august-3-1963/#:~:text=%E2%80%9CThe%20hands%20of%20the%20clock,the%20fury%20of%20a%20tornado.