Page 1
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
Page 2
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
Page 3
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
Page 4
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
Page 5
How can Green Infrastructure be used?
Structural BMPs
Infiltration bedHolland HospitalHolland, MI
Bioretention (rain garden)Plainfield AvenueGrand Rapids, MI
Page 6
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
Page 7
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
Page 8
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
Page 9
How can Green Infrastructure be used?
Structural BMPs
Vegetated filter stripLiberty Park, City of Portage, MI
Constructed filterMichigan Avenue, Lansing, MI
Page 10
Site Example
How can Green Infrastructure be used?
Conventional
Page 11
Non-structural
Protect riparian buffer
Site Example
How can Green Infrastructure be used?
Protect sensitive areas
wooded wetland
Page 12
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
Page 13
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
Page 14
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
Page 15
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)
Page 16
How can Green Infrastructure be used?
Site Example
Green Infrastructure
Conventional
Page 17
How can Green Infrastructure be used?
Site Example
Green Infrastructure (36,038 cft required)
Conventional (41,655 cft required)
Page 18
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
Page 19
How can Green Infrastructure be used?
Site ExampleConventional
Green Infrastructure
Page 20
How can Green Infrastructure be used?
Site ExampleConventional
Green Infrastructure
Travel time through BMPs
Page 21
How can Green Infrastructure be used?
Site ExampleConventional
Green Infrastructure
Including 41,655 cftextended detention
volume
Page 22
How can Green Infrastructure be used?
Site Example