Bridge collapse sends hikers plunging into river - GIF

Bridge collapse sends hikers plunging into river.

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Previously:

https://www.homemadetools.net/forum/...818#post194263
https://www.homemadetools.net/forum/...723#post193892
https://www.homemadetools.net/forum/...429#post192814
https://www.homemadetools.net/forum/...711#post190217
https://www.homemadetools.net/forum/...469#post189289

The article about is says the failure was due to a connecting link in one of the cables. The investigation into the fault by DoC and Tuhoe found that the failure was due to a rare manufacturing defect in a link of the cable that snapped.

The "quench crack" was found in laboratory analysis conducted at the University of Canterbury.
https://www.stuff.co.nz/travel/trave...-video-emerges
here are some ways quench cracking can occur
https://www.productionmachining.com/...king-in-steel-

They're lucky part of that bridge didn't fall on top of them!

I hope everybody is all right. Having traversed over a few back country bridges I'm surprised this doesn't happen more often.