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flood watch
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UndercoverElephant



Joined: 10 Mar 2008
Posts: 10283
Location: south east England

PostPosted: Thu Aug 01, 2019 3:22 pm    Post subject: Reply with quote

Looks pretty scary

https://www.bbc.co.uk/news/uk-england-derbyshire-49189955
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adam2
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Joined: 02 Jul 2007
Posts: 7415
Location: North Somerset

PostPosted: Thu Aug 01, 2019 5:09 pm    Post subject: Reply with quote

UndercoverElephant wrote:
Looks pretty scary

https://www.bbc.co.uk/news/uk-england-derbyshire-49189955


Yes, I would not wish to live to live downstream of that, or indeed any other dam.
The damage may LOOK superficial, but even minor damage of that type can lead to total failure.

The inflow to any dam can exceed the storage capacity, a safe form of overflow is therefore required.
A significant risk is that the overflowing water may erode the dam structure, this appears to have started.
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adam2
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Location: North Somerset

PostPosted: Fri Nov 08, 2019 11:16 am    Post subject: Reply with quote

Flooding in and around Sheffield looks much worse than previously.
"Dozens spend the night in a shopping center"

https://www.bbc.co.uk/news/uk-50341846
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adam2
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PostPosted: Mon Nov 11, 2019 3:20 pm    Post subject: Reply with quote

Flooding ongoing.
The damage is extensive, including in areas without previous history of flooding.

Flooding in areas known for flooding is nothing remarkable.
Flooding in areas that have not previously flooded is more noteworthy.

https://www.bbc.co.uk/news/uk-england-50372839
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kenneal - lagger
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Joined: 20 Sep 2006
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Location: Newbury, Berkshire

PostPosted: Mon Nov 11, 2019 3:24 pm    Post subject: Reply with quote

This post is relevant.
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adam2
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PostPosted: Tue Nov 12, 2019 12:28 am    Post subject: Reply with quote

Yes.
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fuzzy



Joined: 29 Nov 2013
Posts: 983
Location: The Marches, UK

PostPosted: Tue Nov 12, 2019 6:25 am    Post subject: Reply with quote

That's a bit of a jump. The last floods in Doncaster were caused by an earth dam above Rotherham dating back to heavy industry days which had been neglected. The agency were forced to drain it quick and the media refused to make the connection about the flooding of Bentley and Toll Bar because they don't do news anymore and it was only Northerners.
Has anyone reported if this dam exists now, or was it easier to scrap, and the media don't do detail, just agendas?

Edit: Yes it exists:

In the 1980s it was decided that it was no longer needed for water supplies and was sold to Rotherham council for £1. The council turned the venue into the centrepiece of Ulley Country Park, with the water hosting sailing and fishing.

Perhaps it doesn't behave the way it used to when managed for water
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kenneal - lagger
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PostPosted: Tue Nov 12, 2019 5:44 pm    Post subject: Reply with quote

The current floods were caused by a month's worth of rain falling in 24 hours according to the news so that could be classed as an extreme weather event which are forecast to increase in frequency because or global warming/heating.

I thought last years dam problem was caused by extreme flow over topping the dam and washing away part of the concrete spillway.
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