WATER levels have “decreased marginally” in Lough Derg according to the ESB, which has indicated its intention to maintain the water release rate from Parteen Weir at the same level it has now been at for a number of days.
However, Clare County Council has indicated that it is anticipating an increase in water levels on the Lower River Shannon at Springfield, Clonlara, during Wednesday evening and overnight as a result of forecast rainfall and the impact of the spill rate of 470 cubic metres per second (cumecs) being maintained at Parteen by the ESB.
The ESB says the spill rate will be reviewed again tomorrow and has warned that levels in Lough Derg may reach 2009 levels in the coming days and, as a result, the flow through Parteen Weir may increase to 500 cumecs.
The local authority in Clare, assisted by the Civil Defence and the Defence Forces, is maintaining a 24-hour presence to assist residents affected by flooding and to respond to any additional impact, it said.
Approximately 5,000 sandbags have been installed in the Springfield area to assist residents of up to 15 properties. Additional sandbags are on standby if required. Up to 30 pumps have been deployed to and are operating in the area.
Met Éireann currently has a Yellow Weather Advisory in place for the area and is forecasting that a band of rain will move slowly northeastwards over Ireland through this afternoon, evening and tonight. Rainfall amounts of 15 to 25mm are expected.
“Water levels have dropped two inches overnight and are now approximately 6-7 inches below the November 2009 peak level which was reached on Saturday night last,” said Hugh McGrath, Killaloe District Engineer with Clare County Council.
“We expect water levels to increase further overnight tonight and as a result standard operating and response procedures are in place in the event of additional flooding incidents occurring.
“As well as monitoring the impact of the forecast rainfall and the current spill rate of 470 cumecs at Parteen Weir, the Council is also monitoring the Mulkear River which enters the Lower River Shannon south of Annacotty in county Limerick. When in flood, this River can negatively impact on water levels in the Lower River Shannon,” added Mr McGrath.