steel curtain

I’ve been curious since the coaster was built how much the Steel Curtain cost to build. Does anyone know?

I know that sometimes roller coaster costs aren't revealed, and I believe that this is the case with the Steel Curtain at Kennywood. I was just wondering if anyone had an estimate out there, or maybe if someone had an exact answer. I was just curious because this is at my home park, and I know...

There is only one article on this so far but not available to see in the European region, but Kennywood will be retracking Thunderbolt and it won't operate over halloween https://www.wtae.com/article/kennywood-thunderbolt-closed-phantom-fright-nights-track-replacement/29008387