Great Lakes Green Streets Guidebook. Green Streets GLRI Grant. Wayne County : Grow Zones within ROW Oakland County Campus Macomb County - Metropolitan parkway grow zone Monroe County & City of Luna Pier – Luna Pier Blvd Great Lakes Green Streets Guidebook. What are Green Streets?.
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Green Streets GLRI Grant • Wayne County: Grow Zones within ROW • Oakland County Campus • Macomb County - Metropolitan parkway grow zone • Monroe County & City of Luna Pier – Luna Pier Blvd • Great Lakes Green Streets Guidebook
What are Green Streets? • Reduce runoff & improve water quality • Road ROW • Surrounding area • Multiple Outcomes • Water Quality • Streetscapes • Pedestrian-Friendly • Air Quality • Traffic Calming • Connect neighborhoods, parks, etc.
Why Green Streets • Transportation Goals • Watershed Goals • Reduce / manage impervious cover • Stormwater reduction • Infrastructure improvements • Community aesthetics
The Stormwater Issue • Impaired water quality • Less groundwater recharge • Increased flooding and property damage • Decreased recreational opportunities • Loss of fisheries and habitat
What are green infrastructure practices? • Low Impact Development (LID) • Manage rainfall where it lands • Techniques that infiltrate, store, evaporate, filter &/or detain stormwater runoff close to where it originates • Remember your hydrologic cycle – let’s mimic nature
Great Lakes Green Streets Guidebook • Why Green Streets • Local & Regional Planning Considerations • Technical Challenges • Funding Challenges • Types of GI Techniques • Case Studies – Great Lakes Watershed
Case Study: Maywood Avenue, ToledoBioswales • Work towards CSO reduction • Reduced street flooding & basement backups • Low maintenance with turf design • >60% runoff reduction • 60-70% peak flow reduction • $$622,000 total • $278,000
Case Study: Luna Pier Blvd, Luna PierBioretention • Volume reduction • Streetscape enhancements • Community development • 200 lbs sediment reduction annually
Case Study: Michigan Avenue, LansingBioretention • Ultra-urban application • 4 city blocks • 30 planter box bioretention gardens • 1-inch of runoff • 4 acre tributary area • CSO reduction • Traffic calming • Pedestrian Friendly • $3,000,000 total costs • $1,000,000 GI
Case Study: Save the Rain – Onondaga County, NYBioretention; Porous Pavement • 1 MG per year runoff reduction • Traffic calming • Pedestrian Friendly • $1,000,000
Case Study: Easy Street, Ann ArborPorous Pavement • 60% peak flow and 80% runoff volume reduction. • GI features designed to fit into space available • $1,280,000 • Street flooding virtually eliminated
Case Study: Chicago AlleysPorous Pavement • 80% runoff reduction • Permeable asphalt • Porous concrete • Permeable pavers • $150,000 per alley average • < 1 acre drainage area
Grow Zones Sheet drainage to open areas
Local & Regional Planning Efforts • Transportation plans & watershed plans • Consider in conceptual design • Infrastructure collaboration • Asset management prioritization • Transportation Alternatives Program
MDOT: I-75 Corridor Regional Ecosystem Framework • Ecological conceptual planning for 20-year reconstruct • SHRP2 Implementation Assistance Funds • MNFI & SEMCOG partners • Wetland mitigation and stormwater management opportunities (what and where) • Online GIS toolTemplate for ecological planning with long-range transportation planning