Derbyshire dam

Muck Spreader · Aug 4, 2019

borderterribles said:
There is an old Derbyshire saying that goes "it's hell or Whaley Bridge , lad" which kinda means that there ain't a lot to choose between the two!

I've never heard of this saying, must be from someone from a sh!t hole like nearby New Mills, Whaley is quite a pleasant place.

pettsy · Aug 4, 2019

Muck Spreader said:
I've never heard of this saying, must be from someone from a sh!t hole like nearby New Mills, Whaley is quite a pleasant place.

Can’t say as I have, mind you I’m a bit further down in Derbyshire!

Doing it for the kids · Aug 4, 2019

renewablejohn said:
That will depend on how much rain we get this afternoon and whether that rain can be kept from entering the reservoir. If it can be kept out of the res then the residents will be allowed back once the level is below the damage. Think they said on our local news last night that was only an 8 mtr reduction in level.

I’m curious. If the dam catches all rain in the watershed, how does one divert water out of the rivers that feed it?

Tarw Coch · Aug 4, 2019

Doing it for the kids said:
I’m curious. If the dam catches all rain in the watershed, how does one divert water out of the rivers that feed it?

I’ve been wondering that, water usually flows downhill, it’s hardly multiple choice which way it goes. :scratchhead:

Doing it for the kids · Aug 4, 2019

Visions of a very big hose going over a mountain top to the other side - that would take some sucking to get that to syphone!

Whitepeak · Aug 4, 2019

Doing it for the kids said:
I’m curious. If the dam catches all rain in the watershed, how does one divert water out of the rivers that feed it?

I'm led to believe that some of the feeder streams were designed in such a way that they could be diverted, its amazing what the victorian engineers could do. No idea where its diverted to though

Ffermer Bach · Aug 4, 2019

Whitepeak said:
I'm led to believe that some of the feeder streams were designed in such a way that they could be diverted, its amazing what the victorian engineers could do. No idea where its diverted to though

I would expect that the areas that the water was planned to be diverted to, is now been build on maybe with supermarkets and timber frame housing estates, with the planners claiming "we did not have national policy guidance asking us to consider possible flood risk".

neilo · Aug 4, 2019

JP1 said:
Goodness knows why it did that. Hopefully I won't have to keep deleting duplications soon when the system settles down (roll eye emoji missing ....)

:roll eyes: is still there, it’s just so different that it hardly looks like anyone rolling their eyes.

Hampton · Aug 4, 2019

Mur Huwcun said:
They were mentioning in the news that they had fire engine pumps pumping water out of the reservoir to drop the level, they couldn’t open the sluice gates type any more as the river wouldn’t take any more flow therefore where are they pumping the water to then?

Other end of the reservoir

holywell farmer · Aug 4, 2019

Whitepeak said:
No farmland in the vicinity of the dam, its all houses and industrial buildings! From Whaley it's nearly constant houses down the valley right into Manchester.
I have friends who farm in the area, they are all high enough to be safe. But its causing absolute chaos in the area. Every road in and out of the town is closed with police guards posted 24/7. No access to Buxton from Stockport via road or rail, as both the a6 and the railway line are closed until the dam is safe. And all the local shops are fast selling out of bread and milk etc.

The dam is still not structurally safe, and the concern is now thunderstorms are forecast for tomorrow. Although they have now managed to block off and divert a lot of streams off the moors that feed the reservoir, so it shouldn't fill up as quick now. I didn't realise the scale of the damage until I've seen pictures of tonne sacks of rubble that have been placed in the damaged area to shore it up.

They have evacuated a lot of homes further down stream in New Mills and Furness Vale that would be at risk of flooding if the rivers/canals can't cope with an extra water.

It cost big bucks to re build the wall

renewablejohn · Aug 4, 2019

Doing it for the kids said:
I’m curious. If the dam catches all rain in the watershed, how does one divert water out of the rivers that feed it?

No the res is fed from the river. Only when the river goes beyond a certain height does the excess go into the res. What they have done is increased the volume of water going down the river Goyt before the overflow goes into the res.

renewablejohn · Aug 4, 2019

Doing it for the kids said:
Visions of a very big hose going over a mountain top to the other side - that would take some sucking to get that to syphone!

The canal can take the water beyond the catchment area of the River Goyt so by opening the right sluice gates the res can be drained even if the river Goyt is full to capacity, which its not at the moment.

Tarw Coch · Aug 4, 2019

renewablejohn said:
The canal can take the water beyond the catchment area of the River Goyt so by opening the right sluice gates the res can be drained even if the river Goyt is full to capacity, which its not at the moment.

But with a canal being practically level, I’d imagine there wouldn’t be a terribly fast flow..............allthough it would probably be faster than their pumps.

capfits · Aug 4, 2019

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TheTallGuy · Aug 4, 2019

Ffermer Bach said:
I would expect that the areas that the water was planned to be diverted to, is now been build on maybe with supermarkets and timber frame housing estates, with the planners claiming "we did not have national policy guidance asking us to consider possible flood risk".

Under normal excess water conditions the water would overtop the dam & run down the spillway into a feeder to the River Goyt.

renewablejohn · Aug 4, 2019

Tarw Coch said:
But with a canal being practically level, I’d imagine there wouldn’t be a terribly fast flow..............allthough it would probably be faster than their pumps.

Depends on the size of the sluice gate and how many sluice gates are open. That stretch of canal is miles long all on the same level so in effect a massive reservoir that could be used as a river.

RushesToo · Aug 4, 2019

Tarw Coch said:
But with a canal being practically level, I’d imagine there wouldn’t be a terribly fast flow..............allthough it would probably be faster than their pumps.

They've taken 3m of water off 30 acres. Personally I am impressed with that.

Chae1 · Aug 4, 2019

holywell farmer said:
It cost big bucks to re build the wall

Dammed if they do and dammed if they don't.

Highland Mule · Aug 4, 2019

RushesToo said:
They've taken 3m of water off 30 acres. Personally I am impressed with that.

80 million gallons, I make that. That's quite a lot of water.

renewablejohn · Aug 4, 2019

Thankfully the heavy rain forecast has not happened.

Derbyshire dam

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100% I’ve had enough of farming!

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