What is Green Infrastructure and How Making work for us:
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What is Green Infrastructure and How Does It Reduce Wet Weather Issues? Making natural systems work for us: using soil and vegetation - rather than concrete and pipe, to manage stormwater volume, rate, and water quality impacts Prepared for: Onondaga County, New York Prepared by: October 2008 1 During dry weather, sanitary flows are collected in combined sewers for treatment at Metro Catch Basin Combined Sewer Dry Weather Flow Sanitary Sewer Creek Interceptor Sewer to Wastewater Treatment Facility 2 During wet weather, inflows exceed the collection system’s capacity and trigger a CSO Roof Leaders Stormwater Catch Basin Runoff Combined Sewer Sanitary Sewer Combined Sewer Overflow Creek Interceptor Sewer to Wastewater Treatment Facility 3 Green solutions intercept and reduce stormwater flows to sewers, providing storage, infiltration, and treatment Roof Leader Vegetated Stormwater Swale Runoff Porous Roadway Combined Sewer Dry Weather Flow Sanitary Sewer Creek Interceptor Sewer to Wastewater Treatment Facility 4 Green infrastructure reduces…. Flooding Erosion Stormwater runoff volume Stormwater pollutant loadings CSOs Gray infrastructure operation, maintenance, energy and treatment costs 5 Green Infrastructure Technologies and Example Applications Porous pavement Parking lots Roadways Sidewalks Basketball courts Bioretention/vegetated infiltration Rain Gardens Vegetated curb extensions Tree trenches Planter boxes Cisterns for capture/re-use Vegetated roofs Green streets Combinations of the above 6 Porous Pavement Parking Lot 7 Porous Pavement Paver Roadway Porous Pavement Asphalt Roadway 8 Porous Pavement basketball court sidewalk 9 Rain Garden (bioretention/vegetative infiltration) 10 Vegetated Curb Extension – Plan View 11 Vegetated Curb Extension – Profile View 12 Tree Trench 13 Tree Trenches along Street 14 Planter Box 15 Cistern for Capture/Re-use 16 Vegetated Roof 17 Vegetated Roof under construction finished roof 18 Green Streets…putting it all together Portland State University Street Planters 19 Image Source: A Civic Vision for the Central Delaware Green Streets…putting it all together ~ “Catch the Rain” 20 Green Infrastructure improves: Water quality Air quality Neighborhood aesthetics Habitat and biodiversity Recreational and transportation opportunities Property values Community health and vitality 21
