sustainable+drainage/+ integrated+water+management++ in ......sustainable+drainage/+...
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Sustainable+Drainage/+Integrated+Water+Management++
in+London+Kevin+Reid+
Greater+London+Authority+
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Content+
Where%are%we%now%*%policy%% % % %*%projects%% % % %*%examples%
%What%next?%%
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London+Plan+Policy++5:13+Sustainable%Drainage%%Development+should+uFlise+sustainable+urban+drainage+systems+(Sustainable+
drainage)+unless+there+are+pracFcal+reasons+for+not+doing+so,+and+should+aim+to+achieve+greenfield+runLoff+rates+and+ensure+that+surface+water+runLoff+is+managed+as+close+to+its+source+as+possible+in+line+with+the+following+drainage+hierarchy:++1+store+rainwater+for+later+use+2+use+infiltraFon+techniques,+such+as+porous+surfaces+in+nonLclay+areas++3+aQenuate+rainwater+in+ponds+or+open+water+features+for+gradual+release+4+aQenuate+rainwater+by+storing+in+tanks+or+sealed+water+features+for+gradual+release+5+discharge+rainwater+direct+to+a+watercourse+6+discharge+rainwater+to+a+surface+water+sewer/drain+7+discharge+rainwater+to+the+combined+sewer.+++Drainage+should+be+designed+and+implemented+in+ways+that+deliver+other+policy+objecFves+of+this+Plan,+including+water+use+efficiency+and+quality,+biodiversity,+amenity+and+recreaFon.++
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NaFonal+Planning+Policy+Framework+(NPPF)+
All%new%“Major”%developments%(over%10%dwellings)%must%be%referred%to%the%Lead%Local%Flood%Authority%%%EffecJve%since%April%2015%%
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London+Plan+Opportunity+Areas+
Integrated%Water%Management%Strategies%for%major%development%locaJons:%%• Vauxhall%Nine%Elms%BaRersea%
• Old%Oak%Common%%…more%to%follow%%
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DemonstraJon%projects%funded%such%as:%%• Green%Infrastructure%Audits%in%10%BIDs%• Green%Roofs%• Rain%gardens%• Green%Walls%• River%RestoraJon%%• Stockholm%Street%Trees%
Drain+London+
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Mayor’s+Urban+Greening+Programme+
• Mayor’s%Help%A%London%Park%projects%
• 100%Pocket%parks%
• 20%000%new%Street%Trees%
• Big%Green%Fund%
• TfL%Green%roofs%and%walls%
• 17%ha%of%Green%roof%in%Central%London%
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Some+London+Examples+
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Green%roof%%%Queen%Caroline%%Estate%%LB%Hammersmith%%&%Fulham%%Swale%
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Variety%of%SuDS%Measures%linked%to%educaJon%programmes%%SUDS%for%Schools%%10%Schools%within%%LBs%Enfield,%Barnet%&%Haringey%
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Green%Roof%%Museum%of%London%City%of%London%
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Road%“bump*outs”%%Burbage%Rd%%LB%Southwark%
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De*paving%%FenJman%Rd%%LB%Lambeth%
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Green%Roof%%London%Underground%Ruislip%Depot%%LB%Hillingdon%
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Green%Roof%&%rainwater%%harvesJng%%West%Ham%%Bus%Depot%%LB%Newham%
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River%RestoraJon%%Queensbury%RecreaJon%Ground%%LB%Harrow%%
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Green%Roof%Centre%404%LB%Camden%
Permeable%Paving%Islington%Town%Hall%LB%Islington%
Green%Roof%Belmont%St%LB%Camden%
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Road%Build%Out%Central%Hill/Elder%Rd%LB%Lambeth%
Green%Wall%Athenaeum%Hotel%City%of%Westminster%
Green%Roof%Kemp%House%City%of%Westminster%
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De*paving%Kennington%LB%Lambeth%
Green%Wall%Tooley%St%LB%Southwark%
Green%Wall%Rubens%Hotel%City%of%Westminster%
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%Chinbrook%%Meadows%LB%Lewisham%%%River%%RestoraJon%%%Sutcliffe%Park%LB%Lewisham%
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Raingarden%%Renfrew%Close%Beckton%%LB%Newham%
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Mayes%Brook%Park%%LB%Barking%&%Dagenham%
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Derbyshire%Street%%Pocket%Park%%Bethnal%Green%%LB%Tower%Hamlets%
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Rainwater%%HarvesJng%%Gainsborough%%Primary%%School%%LB%Hackney%
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What+Next+?+
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Drain+London++
%
Part%funding%5%retrofit%sustainable%drainage%projects:%%• Priory%Rd,%Hornsey:%LB%Haringey%• Alma%Road,%Ponders%End:%LB%Enfield%• Australia%Rd,%LB%Hammersmith%&%Fulham%• Lost%Effra,%LB%Southwark%&%Lambeth%• Climate%Proof%Housing,%LB%Hammersmith%&%Fulham%
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London+Sustainable+Drainage+AcFon+Plan+• 25%year%plan%to%increase%the%use%of%
sustainable%drainage%across%London%
• IdenJfy%where%other%works%already%planned%&%integrate%sustainable%drainage%measures%
• Produced%by%GLA%with%advice%and%support%from%TW,%EA%&%London%boroughs%
• Set%out%about%50%acJons%
• ConsultaJon%Autumn%2015,%final%Plan%2016%
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Thames+Water+
• 20%for%20%programme%
• Thames%Water%funding%2015*2020%%
• Projects%that%disconnect%surface%water%from%the%foul%or%combined%sewer%system%
• Greenstreet%projects%in%Counters%Creek%catchment%
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New+hard+surfacing+will+conFnue.+.+.++
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.+.+.+but+it+can+sFll+be+permeable+
Highly+permeable++hard+surface++
Permeable%hard%surfaces%can%allow%up%to%70%000%litres/hour/m2%to%infiltrate,%whilst%sJll%taking%up%to%80%ton%vehicles%