making the case for green infrastructure · 2018. 8. 24. · fishbeck, thompson, carr, & huber...

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

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

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

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

How can Green Infrastructure be used?

Structural BMPs

Infiltration bedHolland HospitalHolland, MI

Bioretention (rain garden)Plainfield AvenueGrand Rapids, MI

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

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

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

How can Green Infrastructure be used?

Structural BMPs

Vegetated filter stripLiberty Park, City of Portage, MI

Constructed filterMichigan Avenue, Lansing, MI

Site Example

How can Green Infrastructure be used?

Conventional

Non-structural

Protect riparian buffer

Site Example

How can Green Infrastructure be used?

Protect sensitive areas

wooded wetland

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

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

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

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)

How can Green Infrastructure be used?

Site Example

Green Infrastructure

Conventional

How can Green Infrastructure be used?

Site Example

Green Infrastructure (36,038 cft required)

Conventional (41,655 cft required)

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

How can Green Infrastructure be used?

Site ExampleConventional

Green Infrastructure

How can Green Infrastructure be used?

Site ExampleConventional

Green Infrastructure

Travel time through BMPs

How can Green Infrastructure be used?

Site ExampleConventional

Green Infrastructure

Including 41,655 cftextended detention

volume

How can Green Infrastructure be used?

Site Example

Questions?