A river dammed by a huge Swiss landslide is flowing again. That's a relief to authorities
A huge mass of rock, ice and mud from the Birch glacier thundered into the Lötschental valley in southern Switzerland on Wednesday, destroying much of the village. Buildings that weren't buried were submerged in a lake created by the small Lonza River, whose course was dammed by the mass of material.
Authorities worried that water pooling above the mass of rock and ice could lead to risks of its own. Still, the regional government in Valais canton (state) said that the Lonza has been flowing through the full length of the debris since Friday.
Geologist and regional official Raphaël Mayoraz said Saturday that the level of the lake has since gone down about 1 meter (3.3 feet).
'The speed at which this lake is emptying comes from the river eroding the deposit,' he said at a news conference. 'This erosion is relatively slow, but that's a good thing. If it is too fast, then there is instability in this channel, and that could lead to small slides of debris.'
'The Lonza appears to have found its way, but it too early to be able to give an all-clear,' said Matthias Bellwald, Blatten's mayor.
The outlet of a dam downstream at Ferden, which is normally used to generate electricity, was opened partially on Friday evening to allow water to flow further down the valley and regulate the volume of water behind the dam. Authorities are still leaving open the possibility of evacuations further downstream if required, though the risk to other villages appears very low.
Days before most of the glacier collapsed, authorities had ordered the evacuation of about 300 people, as well as livestock, from Blatten. Switzerland's president said on Friday that the government was looking for ways to help the evacuees.
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'I use my knife blade every day for opening parcels, opening food packets, everything,' says Elsener. 'I carve an apple for breakfast first thing in the morning. An apple a day keeps the doctor away.' For outdoor work, the large blade is a woodman's best friend. To whittle wood, open the blade and close a fist around the handle so just the tip is pointing out. 'This will allow you to gain power,' explains Felix Immler, Victorinox's Swiss Army knife expert instructor. 'From there, use the bottom of the blade at a 45 degree angle to carve your wood. Each stroke should be an explosion of force.' Originally included on the Swiss Army Knife as a tool for gentlemen who hoped to make themselves useful to ladies who needed their corsets tightening, the hook's modern era usage is somewhat more mysterious. 'You could use it for… anything you might need a hook for,' a Victorinox spokesperson explained, helpfully. I did find one particularly practical usage of my own, though; open the hook half-way and you use it as a portable stand to rest a phone against. You might also use it to pull a bike chain off your gears, so you can work without getting greasy fingers, or even to tease apart difficult knots. The original innovation featured on the 'Officer's And Sports knife', the corkscrew's use is fairly self-explanatory. It's also a handy holster for the knife's smallest screwdriver. One of the most mysterious tools on the Swiss army knife is the reamer, punch, and sewing awl. This thin, sharp wedge is at the bottom of the knife. Punch the reamer into something and then rotate the whole knife to carve out a hole. 'You can use it to put a new hole in your belt or make a conical hole in a piece of wood,' says Immler. 'My other favourite trick is to pierce the tip of the reamer into a stable surface to hold the knife steady. 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