The technology that prevents the next flood – New Technology

     A car stuck in flood waters on a road outside Getinge on Tuesday. The last few days heavy rain in Halland has led to major problems with flooding. Photo: TT
     

Three years ago hit Norrköping by torrential rains and flooded basements. New wastewater and stormwater systems to stop future flooding.

While the emergency services and the Home Guard is getting ready for more rain in flood-hit Halland, so demonstrating how Norrköping municipality strengthen its defense against flooding.

Summer 2011 was the rain cats and dogs in Norrköping and water entered the basement 800. This was followed by a study which showed that the water mains needed to be improved, type NT, Norrköping newspapers. A total of municipally owned NVA, Norrköping water and waste, invest SEK 150 million over ten years.

xmlns="http://www.w3.org/1999/xhtml"> Yesterday, Wednesday, was demonstrated the first of the new facilities to be built, called a delay magazine with a översvämningsyta. In torrential rain the water will be able to flow into the delay compartment that can hold 110 to 120 cubic meters. It has also built a sedimentation pond and a trench filled with coarse aggregate. These measures will reduce the flow of Pjältån there the water flows more slowly in new storm sewers.

– The strategy is to reduce speed and to divert the water, says project manager Peter Jideström to NT.

Similar delay magazine will be built in four neighborhoods of the municipality.