Southeast Michigan Watersheds SEMCOG Office February 10, 2015 Detroit, MI Green Infrastructure Target Setting Pilot Project

MDNR MDOT Partners in the Application MDEQ SEMCOG EPA Technical Assistance Funding ► “Southeast Michigan Watersheds Green Infrastructure Target Setting, will develop stormwater runoff volume reduction targets in the SEM region to achieve identified biological communities. Given these targets, alternatives for green infrastructure implementation will be explored and evaluated. “

Green Infrastructure Targeting Identify & Evaluate GI O PPORTUNITIES Outcome-based Areas of Opportunity Project Feasibility Strategic Framework Subwatershed Analysis Pre-planning

Pre-planning Task 1 Baseline Curves Pilot Areas Green Infrastructure Targeting

Pre-planning Task 2: Stormwater Runoff Volume Targets Green Infrastructure Targeting Richards-Baker Flashiness Index = 0.35 to 0.45

Task 2: Stormwater Targets Flashiness related to: Pre-planning Biology

Task 2: Stormwater Targets Flashiness also related to: Pre-planning Impervious Cover Key hydrologic metrics (e.g., volume, peak rate)

Can include: Alternatives to Achieve Targets Managing effective impervious cover Improving soil health Increasing tree canopy Implementing volume / peak flow BMPs

GI Vision: Red Run Areas of Opportunity

Plumbrook Drain in Red Run Subwatershed

Green Infrastructure Vision

Areas of Opportunity Public property Parking Lots Planned projects Road right-of-way Green Infrastructure Vision Partnerships

School Parcels Areas of Opportunity

Constructed Practices Cost-effective Options Range of assumptions Screening Analysis Constraints Maintenance considerations Design alternatives - Sizing - Placement Field verification Areas of Opportunity

Land Cover

Areas of Opportunity Examine both impervious and pervious areas

Pervious Area Opportunities Green Infrastructure Vision Screening Analyses Improving soil health Increasing tree canopy

Report Format ► Description of Subshed ► Land Use & Land Cover by Catchment  Priority land use type(s) & land cover ► Stormwater Runoff Reduction Targets  Richards-Baker Flashiness Index  Natural GI and Constructed GI work towards target ► Areas of Opportunity  Institutional Properties (state, county, local)  Roadways  Parking Lots  Other identified projects or opportunities

Feedback Discussion Next Steps Green Infrastructure Targeting