The aim of this project commissioned by the technical planning office in City of Helsinki was to avoid urban flooding caused by the Kumpulanpuro stream in Vallila allotment garden. Solution was building delaying pools to the park area that also improved the water quality of the stream. The geotechnical conditions of the Vallilanlaakso valley are very challenging. Plan was prepared between 2012-2014 and included a park design, flow water estimates, hydraulic calculations as well as a virtual model that illustrate the flooding scenarios for 5, 20 and 50 years flood situations.

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