Johnbo, on Feb 8 2010, 12:15 PM, said:
The chains did break up at point, but they worked in that all ultimately crossed the streams without incident.
1. Obviously choose your crossing point carefully, assessing the risks upstream and downstream. If in doubt, don't cross.
2. If forming a human chain try to form a 'V' shape, with the pointy end into the stream.
3. Don't just hold hands, but link bodies.
4. The principal is that the 'V' is a strong and robust shape and will tend to hold its form, position and shape better than a daisy chain, and also has the effect of deflecting the water around the formation.
I had fun yesterday too in the HH!! I have never been fully submerged on a run b4...somehow my phone has now dried out.
"without incident":
I thought the girl in the red shirt who shrieked as she lost her grip and was heading towards an accelerating torrent between 2 boulders might take issue with your comment...I was really worried for her until a Sir Galahad made his was to her from a downstream position and somehow helped her out.
I am not sure about linking the bodies but we should have grabbed forearms rather than hands.
I am not sure about the V. We didn't really have enoug bodies for the extra distance, and I think there is benefit in the person beside you being able to step in the safe spots you have just walked.
Maybe in inclement weather a Striders "leader" should have a short rope with him/her (10m light gauge would have done it).
Also, because we weren't quite sure where the trail as going, we made two crossings when we should have made none. a quick scout reconn upstream would have shown us theat the trail reverted to the same side about 30m up. So i am onboard with #3.
It was exciting, wasn't it?
Edited by frankie17, 08 February 2010 - 02:27 PM.