Water levels on the Lower River Shannon in South East Clare reached 2009 peak levels, according to the local authority.
Clare County Council says waters at Springfield, Clonlara, reached the November 2009 peak level yesterday (Wednesday) afternoon, but have since receded.
It's estimated that the Shannon has dropped by around 10 cm in the area over the last 24 hours.
The ESB says it won't increase the rate of water from Parteen Weir today, where the flow is currently at 440 cubic metres per second.
The situation is under review and the local authority says it's monitoring water levels at Springfield having regard to any potential increase in the spill rate at Parteen Weir and flood levels on the Mulkear River, which enters the River Shannon south of Annacotty.
Meanwhile at Ballycoree Bridge, Ballyalla, Ennis, the River Fergus has recorded its third highest flow rate on record.
