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Bolt failure at The Mine

Posted: Wed Aug 11, 2021 7:10 pm
by drewolden2007
Hello everyone,
I was climbing on Your Mother's Cat route at the Mine yesterday (Puffadder route extension) and unfortunately the 3rd bolt snapped. All good, but I just wanted to give you a heads up in case anyone else is keen to try the route. Having had a look at the other bolts, I'd suggest checking them too before attempting another ascent.
Thanks so much,
Drew
PS. If anyone is heading up to rebolt, I'd love to take a look at the process and help out if I can. :thumright

Re: Bolt failure at The Mine

Posted: Mon Oct 18, 2021 2:40 pm
by Againstthegrains
May I ask what kind of bolt it was? and where/how did it fail?

Re: Bolt failure at The Mine

Posted: Tue Oct 19, 2021 8:16 am
by Forket
Oldschool hanger and bolt. Just under then hanger.
Againstthegrains wrote: Mon Oct 18, 2021 2:40 pm May I ask what kind of bolt it was? and where/how did it fail?

Re: Bolt failure at The Mine

Posted: Tue Oct 19, 2021 9:04 am
by Againstthegrains
Ah, thanks. I guess that makes sense, as if you overtighten the bolt against the anchor, it induces stress fractures, followed by corrosion inside the fractures and then eventually, pop, it goes. Just glad nobody was hurt.

Re: Bolt failure at The Mine

Posted: Tue Oct 19, 2021 11:20 am
by Forket
I just guessed as the bolt is from the 90s and that is where those generation of bolts snap these days. Rusted right through, no microfractures, just rusted through. I had one go on me on the 26, Too pumped to come, a few lines to the right. Didnt even fall on it. After inspection I found that it only had 1mm steel left before I weighed it.

E

Re: Bolt failure at The Mine

Posted: Sat Nov 13, 2021 6:25 pm
by drewolden2007
Water streak running over it too. Broke quite deep in the hole. It wasn't to tight, the hanger squeaked a bit before. :|
(What where you doing on that choss 26- I guess thee same goes for me :lol: )

Re: Bolt failure at The Mine

Posted: Sun Nov 14, 2021 1:12 am
by Forket
Daim, squeeky bolts :?

Hehe, I attempt to climb everything someone invested bolts into. More often than not you discover unrated gems:)

E

Re: Bolt failure at The Mine

Posted: Fri Nov 19, 2021 3:02 pm
by drewolden2007
Clever thinking :idea: