CITYWATER – Benchmarking water protection in cities

Storm water management solution in Helsinki

Project manager Kajsa Rosqvist

City of Helsinki Environment Centre

11.12.2014

17.12.2014

www.citywater.fi

Kuva Kaisa Nurminen

Location of the storm water solution in Maunula

By the Metsäläntie road

First part of the solution Dry season Rainy weather

Metsäläntie

Storm water course goes under the walk way

End of storm water pipe

Second part of the solution

Dry season

Rainy weather

Metsäläntie

Walking road

Coarse crossing the walking road

Haaga brook

Water course after crossing the walkway

General plan of the storm water solution

17.12.2014 Page 9

Lessons learned so far… • Set own percise goals with the management solution – will ease all further decisions (tendering,

planning process etc). • Environmental goals, time limits, budget, list uncontrollable obstacles

• Collect a monitoring group with representatives from several city departments

• Representatives from eg. city construction, city planning, economic planning, construction inspection, environment

• Keep the group small and set a clear task and time period for the group

– Provision of knowledge on suitable site (technical, environmental, historical etc. other facts) – Support in planning and implementation in general – Guidance through official decision-making and other procedures – Provision of financial support

… by this committing civil servants/ departments to natural storm water work, spreading the thoughts within the city… and highlighting the issues in general during several occasions

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