storm water strategy city of helsinki · 5 . storm water strategy 2008 list of 14 measures deal...

6.2.2009 Kimmo Kuisma

Storm water strategy City of Helsinki Turku, Citywater-seminar, 11.12.2014

Kimmo Kuisma, City Executive Office

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Content of presentation

1 Storm water strategy 2008 2 Pilot project in Kuninkaantammi area 3 Planning of storm water management in Kuninkaantammi 4 Strategy implementation 2008-14 5 Future visions

Kimmo Kuisma City Executive Office 11.12.2014

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Background

Flooding in urban areas Helsinki 22.8.2011 39 mm per hour

Photo: www.iltalehti.fi


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Storm water strategy 2008 Eliminating or preventing

damages of flooding

Keeping the level of ground water unchanged

Regional and local dewatering

Minimizing injurious ingredients in storm water

Utilizing storm water as a resource in urban environment

Main goal is better overall management

Photo: www.iltalehti.fi Jenni Gästgivar


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Storm water strategy 2008 Land use planning

Contracts, planning instuctions and building permit procedures

Planning and constructing of the sewage network

Co-operation within the city: integrating the sw-strategy into the processes of planning and construction (urban spaces and private plots)

List of 14 measures deal with


Photo: www.iltalehti.fi Kira Ruohonen

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Storm water strategy 2008 Main goal is better overall management The priority order in storm water management and planning

1. Storm water is treated and utilized on original site

2. Storm water is leaded out from original site by using delaying system, which slows down the first flush of run off

3. Storm water is leaded out from original site in drainage pipes to delaying areas in public spaces, before leading to creeks/rivers/lakes/sea

4. Storm water is leaded in drainage pipes straight to creeks/rivers/lakes/sea

5. Storm water is leaded in sewers to Viikinmäki waste water treatment plant


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The big picture in storm water management

Built urban environment …

… should function like this


KESKUSPUISTO

VANTAANJOKILAAKSO

MÄTÄJOKILAAKSO

HONKASUO

MALMINKARTANON-HUIPPU

MYYRMÄKI

KAIVOKSELA

HAKUNINMAA

KONALA

RAJA-TORPPA

KUNINKAANTAMMI

KAARENMÄKI

URHEILU-PUISTO

VANTAA

HELSINKI

Pilot project in Kuninkaantammi area


http://www.google.fi/url?sa=i&rct=j&q=p%C3%A4%C3%A4kaupunkiseutu&source=images&cd=&cad=rja&docid=Fr54qE-apjqGtM&tbnid=Q1ysO0NXzDRhBM:&ved=0CAUQjRw&url=http%3A%2F%2Fpikarent.com%2Fkuljetuspalvelut%2F&ei=JuZjUYKcI87Hswar_4CADg&bvm=bv.44990110,d.Yms&psig=AFQjCNFPfLqHTFZJiTTvl0TFyIfxnB2wlg&ust=1365587861656725

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Storm water management in the

core of city planning

Drainage basin based plan of storm water management

Recognising and researching the needed changes in planning ja constructing processes

Recognising and learning new best practises in co-operation within city

Implementation of the strategy and learning new best practises

Photo: www.kaleva.fi Risto Rasila



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City planning: overall plan of storm water management

Pilot project: revision of the overall plan – implementation of the strategy

Town planning: requirements for urban space

Detailed planning for constructing in city blocks, streets, parks

Life cycle assessment and planning of maintenance

Planning of storm water management goes through the process



Kimmo Kuisma , Suvi Tyynilä 7.1.2010

Hulevesipilotti • hulevesien viivyttäminen ja hyödyntäminen kortteleissa

Lutra lutra Unio Crassus

Vantaanjoki



Hulevesipilotti • hulevesien viivyttäminen ja hyödyntäminen kortteleissa

Photo: Simo Karisalo


Mätäjoki

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Kuninkaantammi 2008


Kimmo Kuisma , Suvi Tyynilä 7.1.2010 Kimmo Kuisma City Executive Office 11.12.2014 Kuninkaantammi 2030

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City plan

Principles

Areas for delaying of run off

Flooding routes

Overall plan for storm water management


Kimmo Kuisma Taske/Keto 16 17.2.2011

Storm water pilot project

Revision of overall plan – according to the startegy Drainage basin based plan Modelling different rains Measuring the overall sw-system for town planning


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Flooding routes Preventing flooding Managing risks Solutions along ditches



Town planning – city blocks

Utilizing storm water in rain gardens Modelling and instructing: for delay needed 0,5 m3 per 100 m2 unpermeable surface

Green roofs

Kaupunkisuunnitteluvirasto, ”Ihana piha”-ideakilpailu

Storm water is added value and quality of life



Town planning - streets

Swales

Basins Rain gardens Kimmo Kuisma City Executive Office 11.12.2014


Hulevesien viivyttäminen ja hyödyntäminen kortteleissa – sadepuutarha/kivipuutarha Kaavamääräys: 1 m3 per 100 m2 vettä läpäisemätöntä kovaa pintaa

11.2.2011

Kevyiden piharakenteiden viherkatot

hulevesien viivyttäminen ja hyödyntäminen kortteleissa

Town planning – urban spaces

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Co-operation with

local community:

Information and

building trust


Helene Schjerfbeck park

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Helene Schjerfbeck park


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Planner consultant

Steering group Group of residents

PARK PLANNING


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Storm water management is well

integrated within urban planning in different phases

best practises are recognised but not thorouhly learned in co-operation within city operators

Kuva: www.kaleva.fi Kuvaaja: Risto Rasila

Implementation of the strategy 2008-14


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Future visions

Impact of legislation ghanges: since 1.9.2014 the cities and municipalities are responsible for storm water management

Budgeting of green infrastructure: parks and greenfield areas as part of sw-management system

Intensive co-operation is needed

New evaluation of public space and its image

More resources for maintenance

Life cycle costs?


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Thank you!

Kimmo Kuisma

Project manager

050 465 7176

[email protected]

www.uuttahelsinkia.fi


mailto:[email protected]

http://www.uuttahelsinkia.fi/

storm water strategy city of helsinki · 5 . storm water strategy 2008 list of 14 measures deal...

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