{"id":719,"date":"2021-05-18T20:26:18","date_gmt":"2021-05-18T20:26:18","guid":{"rendered":"https:\/\/saveourshannonorganisation.ie\/?page_id=719"},"modified":"2021-05-18T20:26:18","modified_gmt":"2021-05-18T20:26:18","slug":"2nd-letter-on-05-february-2021","status":"publish","type":"page","link":"https:\/\/saveourshannonorganisation.ie\/?page_id=719","title":{"rendered":"2nd Letter on 05 February 2021"},"content":{"rendered":"\n

From:<\/strong>\u00a0Derek Devaney <derek.devaney@opw.ie<\/a>>
Sent:<\/strong>\u00a005 February 2021 18:03
Subject:<\/strong>\u00a0RE: Save Our Shannon Organisation\u00a0<\/p>\n\n\n\n

Hi Emily<\/p>\n\n\n\n

The Minister was provided the following information from the ESB today and I thought it may be of interest to you and your members by way of update (note: this was in response to query on flooding around Clonbonny and other areas) .<\/p>\n\n\n\n

I expect a response to some of your previous queries will issue today and further response is being prepared as a matter of urgency ( to address your earlier email).<\/p>\n\n\n\n

The ESB has provided the following for the response.<\/em><\/strong><\/p>\n\n\n\n

ESB is continuously monitoring the water levels throughout the Shannon and continues to operate in accordance with its regulations and guidelines for control of the River Shannon.<\/em><\/strong><\/p>\n\n\n\n

As you know there has been heavy rainfall throughout the catchment over the past number of weeks.<\/em><\/strong><\/p>\n\n\n\n

This has resulted in increasing water levels in the River Shannon and its tributaries.<\/em><\/strong><\/p>\n\n\n\n

The River Suck, the largest tributary, which flows into the River Shannon downstream of Athlone also has an influence on water levels in the main River Shannon channel in the Clonbonny area and this has risen significantly recently also.<\/em><\/strong><\/p>\n\n\n\n

Lough Derg is currently in flood as defined in ESB\u2019s regulations and guidelines for control of the River Shannon.<\/em><\/strong><\/p>\n\n\n\n

Discharge at Parteen Weir down the old River Shannon Channel as of Friday 5th February is 210 m3\/s this is combined with discharge from  Ardnacrusha Station which is operating at full throughput (thereabouts 385m3\/s currently). Discharging more water than current would result in lowering water levels in Parteen Basin below safe operating limits with the risk of causing stability issues to the Category A Earthen Embankment Dams that form Parteen Basin and the Headrace Canal. ESB can only manage the flow of water as it arrives at Parteen Weir from Lough Derg. The water flow from Lough Derg to Parteen Basin is restricted by the flow capacity of the outlet channel from Lough Derg at Killaloe. The capacity restriction acts like a bottleneck limiting the discharge from Lough Derg. ESB is maximising the discharge of water from Lough Derg within the Dam Safety constraints<\/em><\/strong><\/p>\n\n\n\n

ESB Ardnacrusha and Gate Movements at Parteen Weir have no effect above Meelick Weir , thus increasing discharge at Parteen Weir will have no effect on water levels in Clonbonny Area<\/em><\/strong><\/p>\n\n\n\n

Predicted water levels and expected discharge amounts based on the latest Met \u00c9ireann forecast can be found on the ESB\u2019s twice weekly Shannon Forecast available to view at: <\/em><\/strong>https:\/\/www.esb.ie\/our-businesses\/generation-energy-trading-new\/hydrometric-information\/river-shannon<\/a><\/p>\n\n\n\n

Take care and stay safe<\/p>\n\n\n\n

Yours sincerely<\/p>\n\n\n\n

Derek Devaney<\/p>\n\n\n\n


\u2014\u2014<\/strong>
Derek Devaney<\/strong>
Private Secretary to the Minister<\/em>

\u2014\u2014
Oifig na nOibreacha Poibl\u00ed<\/strong>
Office of Public Works

52 Faiche Stiabhna, Baile \u00c1tha Cliath, D02 DR67<\/strong>
52 St. Stephen’s Green, Dublin, D02 DR67
\u2014\u2014
M +353 86 601 2871 T +353 1 647 6132
https:\/\/gov.ie\/opw<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

From:\u00a0Derek Devaney <derek.devaney@opw.ie>Sent:\u00a005 February 2021 18:03Subject:\u00a0RE: Save Our Shannon Organisation\u00a0 Hi Emily The Minister was provided the following information from the ESB today and I thought it may be of interest to you and your members by way of update (note: this was in response to query on flooding around Clonbonny and other areas) . … <\/p>\n

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