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Water bodies

Helsinki has a great deal of water: the Gulf of Finland, the Vantaa River, brooks, ditches, bonds and wells. Sea covers 500 square kilometres of the total Helsinki area of 686 square kilometres.

Storm water

Storm water is rain water and snow melt water, which is conducted off the ground, roofs and other surfaces. Storm water reflects human activity, which differentiates it from other runoff waters.

Storm Water Management Programme

The Helsinki City Board approved the City of Helsinki Storm Water Management Programme in May 2018. In the programme, actions for integrated and sustainable storm water management within the city organization are presented. The programme updates and replaces the previous City Storm Water Strategy (2008).

City of Helsinki flooding instructions

The instructions cover protection of property against flooding caused by the sea and water bodies as well as by drainage water consisting of storm water and melting snow. The instructions also give guidelines for preparedness for flooding.

Rug washing piers

Apart from the Pukinmäki pier opened in June 2008, Helsinki’s 14 rug washing piers are located at the sea in Herttoniemi, Hevossalmi, Humallahti, Kalasatama, Lauttasaari, Marjaniemi, Merisatama, Munkkiniemi, Ruoholahti, Sörnäisten rantatie, Taivallahti, Tervasaari and Vartiokylä. The piers are open from May to September. There are many rug washers and activities on the piers especially on warm summer days.



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06.12.2019 18:40