Download - Presentation #2: LID Site Design Measures
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LID!Site!Design!Measures!
Darla!Inglis
University!of!California,!Davis!Extensiony ,Land!Use!and!Natural!Resources!
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P i O liPresentation!Outline
! LID!site!design!guidelines
! Site"based!vs.!regional!LID
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LID site design guidelines: protectLID!site!design!guidelines:!protect!
natural!hydrologic!functionsy g
Center for Watershed Protection
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LID!site!design!guidelines
! Common!LID!Design!Misconception:LID!Design!Fact:!!A!good!LID!design!incorporates!site!planning!principles!! LID!is!all!about!the!inclusion!of!structural!
Best!Management!Practices!(BMPs)
A!good!LID!design!incorporates!site!planning!principles!as!well!as!structural!BMPs!to!achieve!site!performance!
objectivestfssolar.com
j
Site Structural A SuccessfulSite
Planning=+ Structural
BMPs
A Successful
LID Design
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S f f l LID jSteps!for!a!successful!LID!project!
designdesign
! Step!1:! Define!project!site!characteristics!
! Step!2: Conduct!initial!site!layout" reduce!amount!and!impact!of!impervious!surfaces
S ! C l l ! ! ff!b fi !! Step!3: Calculate!stormwater!runoff!benefits!
! Step!4: Integrate!structural!LID!BMPs
! St ! C l l t ! t t ! ff!b fit! Step!5: Calculate!stormwater!runoff!benefits
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Steps for a successful LID projectSteps!for!a!successful!LID!project!
designg
! Step!1: Define!project!site!characteristics!including!opportunities!and!constraintsopportunities!and!constraints
! minimize!clearing!and!grading! minimize!clearing!and!grading
! use!site!fingerprinting
! use!drainage!as!a!design!elementg g
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Minimize clearing and gradingMinimize!clearing!and!gradingclearing!and!grading!minimized
mass!graded
Source:!Lake!County!Stormwater!Management!Department,!Ohio
Crystal!Cove,!CA!
Source:!Sukut!Construction,!Inc.
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Use!drainage!as!a!design!element
Source: www.fceo.co.franklin.oh.us/images/Bioswale.jpg
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Steps for a successful LID projectSteps!for!a!successful!LID!project!
designg! Step!2: Conduct!initial!site!layout" reduce!amount!
and!impact!of!impervious!surfacesp p
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Reduce impervious areasReduce!impervious!areas
! narrow!road!sections! narrow!road!sections
! reduce!sidewalks!to!one!side
! reduce!on"street!parkingreduce!on street!parking
! design!driveways!to!be:
! shared
! narrow
! short City!of!Seattle
! permeable
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R d i iReduce!impervious!areas! alternative!roadway!layout
53.32
acres
of
82.35
acres
of
public
street
public
street
35%!
difference
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Reduce impact from imperviousReduce!impact!from!impervious!
areas
! disconnect!roof!drains!and!direct!fl dflows!to!vegetated!areas
City!of!Seattle
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Reduce impact from imperviousReduce!impact!from!impervious!
areas! direct!flows!from!paved!areas!to!stabilized!vegetated!stabilized!vegetated!areas
! break!up!flow!break!up!flow!direction!from!large!paved!surfaces
Source:!Illinois!Environmental!Protection!Agency
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Steps for a successful LID projectSteps!for!a!successful!LID!project!
design
! Step!3: Calculate!stormwater!runoff!benefits
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Steps for a successful LID projectSteps!for!a!successful!LID!project!
design! Step!4: Integrate!structural!LID!BMPs
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LID!BMP!concepts
i i ! l!d i! mimic!natural!drainage
! use!small!scale!practices
! ! ! h !! manage!stormwater!at!the!source
! make!landscape!and!! make!landscape!and!infrastructure!multifunctional
Center for Watershed Protection
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LID!BMP!concepts
! mimic!natural!drainage
! use!small!scale!practices
! manage!stormwater!at!the!source
! make!landscape!and!infrastructure!
multifunctional
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LID!BMP!concepts
! mimic!natural!drainage
! use!small!scale!practices
! manage!stormwater!at!the!source
k !l d ! d!! make!landscape!and!infrastructure!multifunctionalmultifunctional
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LID!BMP!concepts
! mimic!natural!drainage
! use!small!scale!practices! use!small!scale!practices
! manage!stormwater!at!the!source
! make!landscape!and!infrastructure!
l f lmultifunctional
Source: Illinois Environmental Protection Agency
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Steps for a successful LID projectSteps!for!a!successful!LID!project!
design! Step!5: Repeat!calculation!of!stormwater!runoff!
benefits
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Site"based!vs.!regional!LID
! What!is!regional!LID?
! How!are!the!similarities!and!difference!to!site"based!LIDLID?
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Regional!LID:!transportation!
infrastructure
dA!green!street!is!a!roadway!constructed!by!integrating!transportation,!functionality!and!p , yecological!sustainable!design.!An!environmental!approach!is!used!through!out!the!planning !design !through!out!the!planning,!design,!and!the!construction.!The!result!is!a!highway!that!will!benefit!
i ! h ! ! b !transportation,!the!ecosystem,!urban!growth,!public!health!and!surrounding!communities.
The!City!of!Indianapolisg
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Q tiQuestions