Bolt failure at The Mine

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drewolden2007
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Bolt failure at The Mine

Post 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
Againstthegrains
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Re: Bolt failure at The Mine

Post by Againstthegrains »

May I ask what kind of bolt it was? and where/how did it fail?
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Forket
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Re: Bolt failure at The Mine

Post 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?
Againstthegrains
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Re: Bolt failure at The Mine

Post 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.
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Forket
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Re: Bolt failure at The Mine

Post 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
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