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Topic : silsden res

dogcatcher
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07/11/2016 : 12:41:49      reply with quote


this post has been edited 1 time(s)

alot of activity up at res this morning ,rumour so far has it is a crack in the sluice pipe ,get your waterwings blown up and ready'sad :(');
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midway
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07/11/2016 : 13:14:25      reply with quote


Could be a coincidence, but i did email Mr Richard Flint CEO of Yorkshire Water on Saturday, regarding the maintenance on the sluice gate. have not yet received a reply. will post when i do.
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gazzer
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07/11/2016 : 17:22:54      reply with quote


www.cravenherald.co.uk/news/11104686.Silsden_householders_warned_they_are_at_risk_of_flooding_if_reservoir_bursts/
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Peter
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07/11/2016 : 17:25:26      reply with quote


this post has been edited 1 time(s)

Note the date on the above Craven Herald article.
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gazzer
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07/11/2016 : 17:45:21      reply with quote


quote
posted by Peter
Note the date on the above Craven Herald article.
Should have mentioned the date
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midway
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07/11/2016 : 19:12:41      reply with quote


No reply to my email yet. And i,m disgusted with the lack of information from both Yorkshire Water and the Environmental Agency particularly what they are doing to stop the flooding happening again.
I still have concerns regarding how the water level in the reservoir is controlled, is there a sluice gate that is operational, is the water level lowered to accommodate impending heavy rain.
quote Mickyfinn 03/01/2016
"Midway, do you know what happens to the water in the reservoir. Where is the water drawn off too, & who owns the reservoir. Surely if the water in the reservoir can be drawn off in good time then there would not be a need to open the sluice, or, is there no sluice gate & the water just overflows. Either way, its not an ideal situation & must contribute to the surge further down that causes damage".

quote Hillbilly 04/01/2016
"News HOT FROM THE PRESS i have just spoken to Peter Calkeld and He has told me the water level at the reservoir can be controlled by the sluice gate but can only be opened by a request from the environmental agency, Yorkshire water are not permitted to open them without been told to do so by the environmental agency"
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midway
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07/11/2016 : 19:29:36      reply with quote


So when does Silsden Reservoir get improved
https://www.yorkshirewater.com/about-us/newsroom-media/graincliffe-reservoir-spillway-improvement
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Mickyfinn
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07/11/2016 : 19:36:24      reply with quote


Just to let you guys know what we see out back at our property in St.John's Street. Typical scenario, one that has occurred many times over the past 20 years or so. There is a forecast for rain, nothing unusual, the beck out back at its usual level, maybe less than a foot deep, the rain comes, not heavy, look out the back, water level rising rapidly, another hour, heavy rain, beck now a raging torrent, can hear boulders bouncing down, close to being inundated. Hours later, beck back to its normal level. I strongly believe that the sluice at the reservoir is opened & in so doing causes what can result in Serious damage downstream. Surely, this sudden build-up in reservoir levels can be controlled by draw-off long before a need to allow water to escape into the beck. We need answers!!
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midway
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07/11/2016 : 20:46:53      reply with quote


The man that should have all the answers is Richard Flint CEO Yorkshire Water. email. richard.flint@keldagroup.com
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midway
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07/11/2016 : 20:58:20      reply with quote


The Reservoir, as is today. the red circle indicates the spillway, the arrow indicates the sluice gate.

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gazzer
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08/11/2016 : 08:07:36      reply with quote


I do think a lot of the problem of the beck rising quickly is due to the concreting over green fields but lack of control of the level of the res may also be a problem.My parents lived where the gents hairdressers on Kirkgate is and it always flooded the celler.


www.gaugemap.co.uk/#!Detail/1992
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grandad
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08/11/2016 : 08:08:01      reply with quote


When reps from Yorkshire water came to a meeting with some of the Town Councillors, the unconvincing reply the the suggestion of letting the level fall when heavy rain was expected was, "We can't do that because the sudden change in water level would damage the dam".
Perhaps the dam needs strengthening?
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dogcatcher
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08/11/2016 : 16:06:25      reply with quote


whats the tower for then i thought that this was a water release as well?
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midway
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08/11/2016 : 16:36:50      reply with quote


This one, yes what's it for?

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blob
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08/11/2016 : 17:00:04      reply with quote


this post has been edited 5 time(s)

Post layout keeps messing up. Have split it in 2 parts happy :)

quote
posted by dogcatcher
alot of activity up at res this morning
Probably YW were maintaining it?

quote
posted by gazzer
www.cravenherald.co.uk/news/11104686.Silsden_householders_warned_they_are_at_risk_of_flooding_if_reservoir_bursts/
This was another example of a waste of money and scaremongering by Bradford Council. The Environment Agency regulate the reservoir and YW maintain it. Why Bradford Council felt the need to produce this leaflet off their own back I don't know. Reservoirs which hold over 25000 cubic metres of water are subject to the Reservoir Act 1975 and have to be inspected and maintained in accordance with it.

britishdams.org/reservoir_safety/default.htm.

quote
posted by Mickyfinn
Hours later, beck back to its normal level. I strongly believe that the sluice at the reservoir is opened & in so doing causes what can result in Serious damage downstream.
Silsden Res will have compensation to allow the Beck to flow in all weather. More rain = more water going down britishdams.org/about_dams/compensationwater.htm

quote
posted by midway
The Reservoir, as is today. the red circle indicates the spillway, the arrow indicates the sluice gate.


This is a side channel spillway to stop the dam overtopping (very bad if that happens). No sluices or manual control involved, it is a structure integral to the dam britishdams.org/about_dams/sidechannel.htm

quote
posted by grandad
When reps from Yorkshire water came to a meeting with some of the Town Councillors, the unconvincing reply the the suggestion of letting the level fall when heavy rain was expected was, "We can't do that because the sudden change in water level would damage the dam".
Perhaps the dam needs strengthening?
The res and dam were built for water supply, not flood storage. Sudden level changes would most likely comprise the dam. Water weighs a lot.




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blob
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08/11/2016 : 17:08:17      reply with quote


quote
posted by midway
This one, yes what's it for?


That is an outlet tower which houses valves to lower the water level manually britishdams.org/about_dams/outlettowers.htm

This can only be done via prior arrangement with the Environment Agency and is used in emergencies where collapse is likely or to flush sediment out from the reservoir.

Reservoir Act 1975:

For Silsden Reservoir the Undertaker = YW, Enforcement Authority = Environment Agency, Panel Engineer = independent engineer who inspects the dam annually and makes recommends in the interest of safety.

britishdams.org/reservoir_safety/default.htm

The Reservoirs Act 1975 provides the legal framework to ensure the safety of UK reservoirs that hold at least 25,000 cu m of water above natural ground level. Approximately 2,500 reservoirs are covered by the Act: some 80% of these are formed by embankment dams with the remainder being concrete or masonry dams or service reservoirs. The Act is applicable in England, Wales and Scotland: it does not apply to Northern Ireland, although some reservoir owners and operators there comply with the spirit of the Act.

The Act identifies four key persons or organisations with distinct functions and responsibilities as follows:

Undertakers
The Undertakers are generally the owners or operators of the reservoir, and have ultimate responsibility for the safety of the reservoir.

Enforcement Authorities
The Enforcement Authority is responsible for ensuring that the Undertakers observe and comply with the requirements of the Act.

Since 1 October 2004 the Environment Agency has been the Enforcement Authority for England and Wales. Further information on the Act and the Environment Agency’s responsibilities can be found on https://www.gov.uk/reservoirs-a-guide-for-owners-and-operators#how-reservoirs-are-regulated

The Enforcement Authorities in Scotland are the Local Authorities.

Qualified Civil Engineers (also referred to as Panel Engineers)
Qualified civil engineers are experienced reservoir engineers appointed to one of the panels under the Act by the Secretary of State in consultation with the Institution of Civil Engineers. They are responsible for the design and supervision of construction, the supervision of measures in the interests of safety, inspection of reservoirs and the ongoing supervision of reservoirs. There are currently four panels of engineers:
All Reservoirs Panel
Non-impounding Reservoirs Panel
Service Reservoirs Panel
Supervising Engineers Panel

Further details of these panels and a list of currently appointed panel engineers can be found on www.environment-agency.gov.uk/business/sectors/64253.aspx

Secretary of State
The Secretary of State is responsible for overseeing the activities of the Enforcement Authorities, appointment of qualified civil engineers and making statutory instruments to prescribe regulations.

Current responsibility for the Act in England lies with the Secretary of State for Environment, Food and Rural Affairs. Since 1 July 1999, the Scottish Parliament and the National Assembly for Wales have had the powers to make specific regulations for Scotland and Wales respectively, but these have not yet been used.
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midway
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08/11/2016 : 17:53:48      reply with quote


Thank you blob for the information, it,s obvious you know what you are talking about. can you please look at the photo, is the water level in the reservoir at a safe level as you see it ( today at 3.45 pm)?

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gazzer
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08/11/2016 : 18:23:14      reply with quote


Given the mills used to draw water from Silsden Beck was the res not built to compensate for water removed for industry?
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blob
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08/11/2016 : 19:35:34      reply with quote


this post has been edited 1 time(s)

quote
posted by midway
Thank you blob for the information, it,s obvious you know what you are talking about. can you please look at the photo, is the water level in the reservoir at a safe level as you see it ( today at 3.45 pm)?

ote]Why would it be unsafe? It doesn't look to be overflowing. I'm no Reservoir Engineer though. Just interested in civil engineering happy :)

quote
posted by gazzer
Given the mills used to draw water from Silsden Beck was the res not built to compensate for water removed for industry?
It was built by the Bradford Corporation to supply industry in Bradford.
discovery.nationalarchives.gov.uk/details/rd/f1c4fe2f-1720-4872-90aa-df543c9ab825

Several Silsden history websites say it say built in 1858. Not doing badly for nearly 160 years old! You may think that Silsden is a long way from Bradford to be collecting water but Grimwith Reservoir was also built by them.



I also found this PDF https://www.yorkshirewater.com/sites/default/files/downloads/Drought%20Plan%202013%20Strategic%20Environmental%20Assessment.pdf which describes Silsden Reservoirs role in any drought plan (increased abstraction).


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blob
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09/11/2016 : 19:48:42      reply with quote


Not scare mongering here but this is why Reservoir Undertakers have to take Reservoir Safety and the Reservoir Act 1975 so seriously. Also why these structures cannot be used for purposes other than what they were built for (eg. short term flood storage)

en.wikipedia.org/wiki/Great_Sheffield_Flood

quote
The Great Sheffield Flood was a flood that devastated parts of Sheffield, England, on 11 March 1864, when the Dale Dyke Dam broke as its reservoir was being filled for the first time. At least 240 people died[1] and more than 600 houses were damaged or destroyed by the flood. The immediate cause was a crack in the embankment, but the source of the crack was never determined. The dam's failure led to reforms in engineering practice, setting standards on specifics that needed to be met when constructing such large-scale structures...
en.wikipedia.org/wiki/St._Francis_Dam

quote
At 11:57PM on March 12, 1928, the dam catastrophically failed, and the resulting flood took the lives of as many as 425 people. The collapse of the St. Francis Dam is considered to be one of the worst American civil engineering disasters of the 20th century...
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midway
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14/11/2016 : 20:22:31      reply with quote


solid wood flooring

midway
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23/11/2016 : 18:12:20      reply with quote


Does anybody know if there are any sport activities on Silsden reservoir, fishing,yachting,sub-aqua.
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gazzer
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23/11/2016 : 18:42:12      reply with quote


quote
posted by midway
Does anybody know if there are any sport activities on Silsden reservoir, fishing,yachting,sub-aqua.
Bradford Waltonians have the fishing rights
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