Villages Below Blatten Have Now Been Evacuated Because of Flood Risk

I wonder if it's possible to siphon the water over the landfall? You would need just enough flow to match the river, and then a little more to drain the lake. This company have made a siphon with a capacity of over 23,050 m³ per hour with a height difference of approximately 1.2 meters. See VAN HECK’S LARGEST SIPHON SYSTEM IN OBERHAUSEN. A critical issue with a siphon is the height of the obstruction, which can be at most 10m so maybe you'd have to bury the tube:


It's amazing how little engineering research seems to have been done on the use of siphons.

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Stuart Lane, Professor of Geomorphology at University of Lausanne 'You can't engineer yourself out of something of this magnitude'


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See Looks Like Blatten is Gone Now, ...

Another update this morning:

Another update the next morning (31 May)

 

And another update: the river has started to flow again and the water level above the debris cone has reduced by 1m or so, but the area is still not safe for people to work in.

 

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