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A large 206,000m2 artificial pond is being created to contain flood waters and help Winchester cope with the exceptional quantities of water flowing down the River Itchen into the city.
60 one-tonne sandbags are being used to create the large retaining pond and to divert flood water from the river into this new storage area.
This engineering feat between the M3 and Easton works by storing flood water which will help reduce river levels and slow down the flow of water.
The Environment Agency will be monitoring levels closely to ensure there is no increased flood risk to residents in the Easton area.
Cranes were used to place huge sandbags weighing one tonne each into the River Itchen through Winchester tonight, to restrict its flow and slow the water. It's the second phase of an operation to prevent the city from flooding.
The Environment Agency is building an artificial pond to help Winchester cope with the exceptionally high levels of water flowing along the River Itchen and into the city.
Crews are using sixty sandbags, each weighing one tonne, to create the holding area which should divert and store flood water away from the city.
The pond is being built between the M3 and Easton, upstream of Winchester. By diverting and storing excess water, it should allow rising ground water and water from other streams to drain into the river.
This should reduce risk of flooding to 100 properties including St Bede’s School, the arts and leisure centres.
The artificial pond is being created in partnership with Hampshire County Council which has made the land available, and the Highways Agency which closed lanes on the M3 to allow a crane to lower the sandbags.
The Environment Agency has said it will be monitoring waters levels closely to ensure there is no increased flood risk to residents in the Easton area.