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FISHBECK, THOMPSON, CARR, & HUBER INC.
Making the Case for Green Infrastructure
Holland, MI August 23, 2018
Design Standards for Water QualityThe “How”
JOE BUSHOTTAWA COUNTY WATER RESOURCES COMMISSIONER
Presenter: Dennis Cole, PE
Presenter: Claire E. Schwartz, PE
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How can Green Infrastructure be used?
Overview
FIRST: Reduce Runoff• Non-structural BMPs – planning
and preservation
SECOND: Capture and Treat Runoff• Structural BMPs – treatment and
mitigation
Site Example
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How can Green Infrastructure be used?
Non-structural BMPs
Protect sensitive and riparian areasHabitat ParkCity of Wixom, MI
Protect flow pathwaysMarywood Health CenterGrand Rapids, MI
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How can Green Infrastructure be used?
Non-structural BMPs
Storm sewer disconnectionCity Hall
City of East Grand Rapids, MI
Reduce impervious and setbackVillas of AdaAda Township, MI
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How can Green Infrastructure be used?
Structural BMPs
Infiltration bedHolland HospitalHolland, MI
Bioretention (rain garden)Plainfield AvenueGrand Rapids, MI
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How can Green Infrastructure be used?
Structural BMPs
Pervious paversWater and Environmental Services FacilityCity of Grand Rapids, MI
Pervious pavementCentral Michigan University
Mount Pleasant, MI
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How can Green Infrastructure be used?
Structural BMPs
Vegetated roofMary Idema Pew Library, Grand Valley State University, Allendale, MI
Capture Reuse (cistern)Kresge Foundation
Troy, MI
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How can Green Infrastructure be used?
Structural BMPs
Native Re-vegetationBusiness, Technology & Research ParkWestern Michigan UniversityKalamazoo, MI
Vegetated SwalePark West Drain
Park Township, Ottawa County, MI
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How can Green Infrastructure be used?
Structural BMPs
Vegetated filter stripLiberty Park, City of Portage, MI
Constructed filterMichigan Avenue, Lansing, MI
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Site Example
How can Green Infrastructure be used?
Conventional
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Non-structural
Protect riparian buffer
Site Example
How can Green Infrastructure be used?
Protect sensitive areas
wooded wetland
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Non-structural
Protect riparian buffer
Site Example
How can Green Infrastructure be used?
Protect sensitive areas
wooded wetland
Reduce Impervious -parking first level condoDisconnect downspouts
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Non-structural
Protect riparian buffer
Site Example
How can Green Infrastructure be used?
Protect sensitive areas
wooded wetland
Reduce Impervious -parking first level condoDisconnect downspoutsStructuralGreen roofPervious parking lot -receiving roof runoffRain gardensDetention
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Site Example
How can Green Infrastructure be used?
wooded wetland
EXISTINGCultivated – good (A) 3.00 ac Woods – good (A) 2.00 acWood – good (D) 1.00 ac Total 6.00 ac
DEVELOPEDImp –Condominium 1.00 acImp –Single family 1.00 acImp – Other pvt 3.00 acImpervious subtotal 5.00 acOpen – fair (A) 0.50 ac BMP surface (D) 0.50 acTotal 6.00 ac
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How can Green Infrastructure be used?
Site ExampleConventional
Green InfrastructureCondo and single family roof area
Protect riparian buffer
Reduced impervious to 4.5 acre
(structure pkg)
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How can Green Infrastructure be used?
Site Example
Green Infrastructure
Conventional
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How can Green Infrastructure be used?
Site Example
Green Infrastructure (36,038 cft required)
Conventional (41,655 cft required)
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How can Green Infrastructure be used?
Site Example
Green Infrastructure
Conventional
1.25 ac disconnected roof area not included in water quality calcs;
so do not need to include here
0.75 ac pervious pvtand green roof notincluded in water
quality calcs
Condo building Single family homes
4.5 total imp
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How can Green Infrastructure be used?
Site ExampleConventional
Green Infrastructure
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How can Green Infrastructure be used?
Site ExampleConventional
Green Infrastructure
Travel time through BMPs
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How can Green Infrastructure be used?
Site ExampleConventional
Green Infrastructure
Including 41,655 cftextended detention
volume
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How can Green Infrastructure be used?
Site Example
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Questions?