Dennis Dreher Geosyntec Consultants. Learning Objectives. Sustainable Site Pavement Systems. Sustainable Pavement Systems

Transcription

1 Learning Objectives Sustainable Site Pavement Systems Presenters Dennis Dreher, Geosyntec Consultants Jay Womack, ASLA, WRD Environmental, Inc. Peter Blundell, Xeripave Charles Taylor, Oldcastle Building Products 1. Learn how sustainable paving ties into broader opportunities to implement green infrastructure at regional, community, neighborhood, and site scales 2. Learn how sustainable paving creates synergies between a variety of design goals and can help resolve issues/challenges with a sites water management." 3. Understand improved land planning using underground stormwater storage. 4. Gain knowledge of proper construction specification of a permeable pavement system. Sustainable Pavement Systems Dennis Dreher Geosyntec Consultants What is Green Infrastructure? (U.S. EPA) Green infrastructure uses vegetation and soil to manage rainwater where it falls. GI provides not only stormwater management, but also flood mitigation, air quality management, and much more. Green vs. grey infrastructure A bio-swale and paver system vs. a storm sewer 1

2 ureau utnam Marshall Dane Wi nnebago Ogle Lee Woodford Rock La Salle Boone De Kalb Jefferson Dodge Livingston Walworth Mchenry Kane Kendall Grundy Waukesha Washington Ford Du Page Racine Kenosha Lake Ozaukee Milwaukee Will Kankakee Iroquois Cook Newton Lake Lake Michigan Jasper Porter White La Porte Pulaski Starke Berrien Cass St Joseph Marsha ll Fulton Mu Va Interconnected network of natural areas and open spaces that: Conserves natural ecosystem functions Sustains clean air and water Provides trails and other benefits to people and wildlife Green Infrastructure (The Conservation Fund) Some Benefits of Green Infrastructure Biodiversity and habitat protection Improved water quality Enhanced groundwater recharge Reduced flood damage Carbon sequestration Reduced life-cycle costs of infrastructure Expedited permitting Green industry jobs Green marketing potential Green architecture Ecotourism opportunities Greenway, trail, and open space connections Enhanced recreational opportunities Community health and mobility Implementing Green Infrastructure at Varying Spatial Scales At the regional scale The Chicago Wilderness consortium has developed a 3- state Green Infrastructure Vision for biodiversity conservation Ê Ê 2

3 Chicago Metropolitan Agency for Planning Green Infrastructure is a Pillar of their GoTo 2040 Plan Millennium Reserve Green Infrastructure Initiative At the county/community scale Incorporate GI principles of biodiversity and sustainability into plans and ordinances Identify greenways and wildlife corridors Plan walking trails and bike paths linking subdivisions and regional trails Geosyntec Involvement in Municipal and County GI Plans McHenry and Kane Counties Cities of Crystal Lake and Woodstock Kishwaukee River/South Rockford special planning area 3

4 McHenry County Green Infrastructure Mapping McHenry County GI Network McHenry County Trails 4

5 ENCOURAGE RESTORATION IMPLEMENT STORMWATER BMPS Specific recommendations for watersheds and planning areas e.g. Lake in the Hills Fen At the neighborhood scale Incorporate conservation design into new developments Consistent with Sustainable Sites Initiative Find creative ways to: infiltrate runoff protect natural areas create greenway & trail connections McHenry County Conservation Design Ordinance A regional model for its progressive approaches for: Open space requirements Open space ownership and funding Open space management and stewardship Stormwater best management practices Tree protection standards Outdoor lighting dark sky standards Density bonuses Settlers Ridge Sugar Grove Features traditional neighborhood design and conservation design 40% open space GI-inspired stormwater and landscaping designs 5

6 People and Nature in Harmony Regional Trail Connections At the site/lot scale Incorporate natural landscaping, permeable paving, and stormwater best management practices in parks, school grounds, residences Applicable to both new projects and retrofits Natural Landscaping 6

7 Permeable Paving Bio-swales and Rain Gardens Naturalized Detention Basins Green Infrastructure Retrofit Opportunities Burnsville, MN: Retrofitted rain gardens reduced stormwater volume by almost 90 percent 7

8 Warrenville Road, Warrenville, IL Green Streets - Infiltration Planters and Rain Gardens Sometimes, our greatest achievement is solving a problem Sustainable Pavement Systems Jay Womack, ASLA WRD Environmental, Inc. 8

9 Elmhurst College Goals: A partnership with nature Current and only detention on the entire campus Healing the earth in concert with human activities Not adding to the neighbors water problems West Hall West Hall Elmhurst College 170 bed residence hall Maintain parking counts for students Preserve/increase open space Honor arboretum status And, convince the neighbors that they would not be inundated with more water West Hall 9

10 The Rain Water Aspects of West Hall 100% Permeable Paver Parking Lot Bioswales in Parking Lots Rain Gardens Around Building Rain Water Harvesting and Recycling for High Efficiency Irrigation System Native Landscapes Monitoring Equipment to Quantify Rain Water Run off But these did not account for all the run off 100% Permeable Paver Parking Lot this is the detention basin for West Hall. 10

11 For a chemistry professor, a new green chemistry class began with rain Cermak Road and Blue Island Avenue Sustainable Streetscape Calle Ecologica 11

12 Project Goals Benito Juarez High School Chicago, IL Energy Efficiency Waste Management Air Quality Energy Efficiency Waste Management Air Quality Existing high school New bridge addition New addition Site Selection Site Selection Beauty and Community Beauty and Community Urban Heat Island Urban Heat Island Water Management Water Management Water Efficiency Water Efficiency And we also solved a water problem 12

13 Cermak Road Sustainable Streetscape Chicago, IL 13

14 Sustainable Pavement Systems Peter Blundell Xeripave Xeripave TM Low Impact Development Applications for Super Porous Pervious Pavers Porous Asphalt, Pervious Concrete & Permeable Concrete Pavers Why Super Permeable? Porous Asphalt Pervious Concrete Poor Mans Permeable Pavement Permeable Concrete Pavers Super Permeable Pavers 14

15 Mechanical Properties 39% void space Moldable Variable thickness and size High decorative value Typical Installation Cross Section Use the sub base to store the WQV Know the infiltration rate of the underlying native soils Can design as a chimney drain and utilize the entire sub base beneath the parking lot Place an elevated slotted drain pipe to form a IWZ (Internal Water Zone) Use as an alternative to metal grates Reduce costs Keep coarse material from filling the drain and clogging the outlet Reduce theft Highly walk able Mosquitoes can not negotiate the voids 15

16 So Pervious that You Don t Need Much! Example Applications and Water Sensitive Urban Design Engineers Expanded design options for managing stormwater to meet GI initiatives Architects New material for design of building surrounds Landscape Architects Incorporation into landscape design to manage stormwater while maintaining usability and esthetic value Roadways and Travelways Wheel Chair Accessible Alternative Design Approaches: Parking Lots Keep pervious surfaces away from the travel way Keep them away from dripping oil and grease, even spills Utilize sheet flow vs. concentrated flow Store the WQV in the subgrade below the pavers or entire paved area Maintain far less surface area 16

17 Driveways Roof Drainage Downspout Disconnection Energy Dissipation Reduce ice buildup Reduce erosion and splash for nonguttered roofs Sidewalk and Walk Ways Stormwater Planters No runoff with reduced weight, and reduced icing Downspout Disconnection Sittable, walkable surfaces Keeps kids and such out of water, mud, trash and debris Reduced maintenance costs 17

18 Tree Wells and Surrounds Walkable Surface Increased infiltration to plant roots Tree grate theft is a problem High decorative value No more broken sidewalks! Reduce ice build up Wash Pads and Hose Bibs Eliminate runoff of detergents and surface pollutants Eliminate mud pits Place a structural fill with bioreactive component to fill voids and degrade or sequester pollutants Combined Systems Pedestrian and Community Areas 18

19 Super Pervious Pavers Sustainable Pavement Systems Charles Taylor Oldcastle Building Products Sustainable Solutions that Last Impervious Pavement System Engineered Ecological Solutions 19

20 First Flush Pollutants Poor Winter Performance High Maintenance Poor Life Cycle Costing Conventional Pavement Promotes 20

21 Minimize the hydrologic impacts of development LID: An Innovative Approach 21

22 Stormwater runoff detention (100 year events) On-site erosion control First-flush pollutant removal and treatment Groundwater recharge Improved land planning and use Ecological System Ecological Solution Bio-Aquifer Storm System will provide: Treatment Train Approach Tomorrow s Stormwater Management Permeable Pavement Systems 22

23 Return on Investment Initial Capitalization Maintenance Costs Design Life Infrastructure Water Quality Environmental Impact JOINT FILL Quality of life Construction No Exfiltration Clay Soils LED Parking Lines Chehalem Cultural Center JOIN 23

24 Water Harvesting Water Harvesting Residential Drive Moceri Residence Sustainable Design, Enjoyable Play Time! Recycled Water for Shower 24

25 Pedestrian Friendly Meets ADA Requirements 1100 gals/min Loading under pressure Normal Maintenance MAINTENANCE 1-2 times per year Post-structural Inspection Report Normal Maintenance 25

26 Estimated year cycles Vacuum Type Sweeper Winter Maintenance Remedial Maintenance Snow Maintenance Multi-Tasking Eco-Machine PICP EEcco Machine s HEAT/ LIGHT Rainfall Morton Arboretum Workshop Dr. Wm. Hunt-NCSU 2009 Sediment travel limited to 1-1 ½ Water Reuse Water Quality (optional) Mitigation Schmutzdecke Schmutzedecke Recharge 26

27 Chuck Taylor Belgard Commercial Expert THANK YOU! 27