Sustainable urban draining system

The growth in the frequency and severity of extreme rainfall has significantly increased the risk of flooding from rivers and urban drainage systems of insufficient capacity. It is a huge investment to dig into the earth and expand the sewer systems in urban areas, so other measures may prove to be better and cheaper alternatives. In fact, water from heavy rainfall may be dealt with in ways which will also have a great effect on the quality of urban life.

For the companies Copenhagen Energy and Frederiksberg Forsyning, Ramboll has carried out a complete overall flood risk calculation including an assessment of damages and the cost of adaptation measures. Based on these calculations, Ramboll and these companies are developing a climate adaptation plan where sustainable drainage and traditional sewer constructions are combined in the optimum way.

Sustainable urban drainage system

On the basis of the developed climate adaptation plans, alternative measures for handling rainwater were taken into account when the new Copenhagen district, ├śrestad, was planned. The sewer system is designed as a 3-split system, consisting of sewage leading┬á to waste water treatment plants, rainwater from roofs is let into surface canals and rainwater from roads is treated locally before it too is let out to the canals.

This local and sustainable drainage system helps avoid overload of sewers while also providing great educational and recreational value for the inhabitants of the area.

Ramboll

Ramboll
240 Blackfriars Road
London SE1 8NW
United Kingdom
Tel:+44 20 7631 5291
Fax:+44 845 299 1610

Mail: london@ramboll.co.uk

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Company registration

Ramboll UK Limited. Registered in England & Wales. Company registration no. 03659970. Registered office: 240 Blackfriars Road, London SE1 8NW


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