Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ......

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Using natural processes to reduce flood risk experiences from Trent Rivers Trust……. Ruth Needham, Trent Rivers Trust

Transcript of Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ......

Page 1: Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ... Experiences from Trent Rivers Trust • What is ‘Working with Natural Processes’

Usingnaturalprocessestoreducefloodrisk

experiencesfromTrentRiversTrust…….

RuthNeedham,TrentRiversTrust

Page 2: Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ... Experiences from Trent Rivers Trust • What is ‘Working with Natural Processes’

ExperiencesfromTrentRiversTrust

• Whatis‘WorkingwithNaturalProcesses’(WWNP)• WhydoweneedWWNP?• WhyisitofinteresttoTrentRiversTrust?• Howtogoaboutit• Somecasestudies• Asummary

Page 3: Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ... Experiences from Trent Rivers Trust • What is ‘Working with Natural Processes’

Whatis‘WorkingwithNaturalProcesses’

Inthecatchment

Changingandmanagingthesurface(increaseporosity)

Promotinggoodsoilmanagement,reducingcompaction

Impedetheflow

Createstorage

Sourcecontrol– workwheretherainfalls

AppliesinruralAND urbanareas

Atorinthe

channel

Slowornarrowtheflow

Increasetheroughness(friction)

Reducetheconveyance(speed)

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Page 5: Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ... Experiences from Trent Rivers Trust • What is ‘Working with Natural Processes’

WhydoweneedWWNP?Rangeofbenefits• Floodrisk• Improvedwaterquality• Createshabitat• Reduceserosionandsoilloss• Providesafocusforpeopleandcommunities• Cheapertobuildthantraditionalfloodmanagment schemes• Legacy?Longtermawareness?

Needtobroadenourapproachtowatermanagement• Increasingfloodrisk• Channelsatcapacity• Needmorethan‘defendanddredge’• Climatechange• Soilloss• Incorporatearangeoftechniques• RequiresaCatchmentBasedApproach• Involvespartners– getseveryonethinkingaboutfloodrisk

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WhyisitofinteresttoTrentRiversTrust?

• Deliversarangeofwaterbasedbenefits

• Easierandcheapertoworkwithsmallervolumesofwater

• Workatrangeofscales;site,landscapeandcatchment.Playstoourstrengths(workwithfarmers,communities,partners)

• Createschemesthatcomplimentthelandscape,bespokesolutionforindividualsites.Solutionsareunobtrusive.

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Howtogoaboutit?Whatarethepitfalls?• Allowplentyoftimeforplanning• Funding– standardfloodriskfundingsourcesnotyettailoredwelltoNFM• Partnersupport– workwithrangeofstakeholders• Uselocalknowledge,carryoutadeskstudy• Makethemostofthedata(+/- ofmodelling)• Secureagreementfromlandowners• Becreativeaboutincentives• Carryoutsurveyswellinadvance• Thinkaboutmaintenanceaspartofyourdesign• MayrequireLandDrainageConsent(LLFA)andPlanningPermission(LPA)• Includeanevaluatingandmonitoringplan,canbeexpensive

SCIMAPoutputs– highlightswherewateraccumulates

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CaseStudySouthwellCatchmentProject

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• Scopingandfeasibilityproject

• Farmadvisoryproject

• Capitalprojects

WillowBrookSitevisit!

CaseStudy SoarNFMproject

Page 10: Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ... Experiences from Trent Rivers Trust • What is ‘Working with Natural Processes’
Page 11: Using natural processes to reduce flood risk · Using natural processes to reduce flood risk ... Experiences from Trent Rivers Trust • What is ‘Working with Natural Processes’

CaseStudy

LeicesterSUDS’n’SchoolsProject ShadyLaneArboretum,Leicester

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Britain in Bloom New Landscape of the Year 2015 (East Midlands)

RainGardenattheStrutts Centre,BelperCaseStudy

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LeisureCentre,MeashamCaseStudy

Front

Back

Before After

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Insummary• Lotsofopportunities• Becreative• Needtoworkinpartnership• Engagewithcommunitiesandlandowners• Startplanningearlyon,don’tunderestimatepotentialforcomplications• Thinkaboutthemaintenance• Constructioncheaperthantraditionalsolutions• Longtermbenefits• Bringaboutsomeinspiringsites

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Thankyou

[email protected]


Natural Flood Management ( PDF 5.4 MB)

Natural Flood Management ( PDF 5.4 MB)

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