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Permeable Paving

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Tom Barrett of Green Water Infrastructure shares insights on permeable paving and water conservation

Tom Barrett of Green Water Infrastructure shares insights on permeable paving and water conservation

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  • Tom Barrett is owner of Green Water Infrastructure. He has over thirty years of successful landscape industry experience and is known as an accomplished corporate growth and change agent. Mr. Barrett has held various leadership positions at such industry leaders as Rain Bird, Kenney Machinery, Ewing, Netafim, and MacAllister Machinery. He has worked with such projects as Animal Kingdom at Walt Disney World in Florida. He has won numerous awards in Quality and Process Improvement, and is a frequent contributor of articles for numerous publications. Mr. Barrett holds a Bachelor of Science in Agronomy and Plant Genetics from the University of Arizona. He furthered his studies in architecture at Syracuse Univ. He holds multiple certifications in irrigation and water conservation. Tom is a member of the Indiana Nursery and Landscape Association, as well as the International Irrigation Association, in which he chairs the Communications Committee. He is an approved instructor for the Irrigation Association. Tom Barrett has been sharing his expertise and his ideas in energetic and dynamic presentations for over twenty years. He is a master trainer. His presentations empower people to become masters of change, rather than victims of circumstance by developing tools for transformative thinking. Currently, Tom delivers over thirty presentations each year to organizations around the country. He is well-suited to talk to us today about Permeable Paving. Please join me in welcoming, TOM BARRETT!

Permeable Paving Permeable Paving Presentation Transcript

  • Permeable Paving Workshop
    • by
    • Tom Barrett
    • Green Water Infrastructure, Inc.
  • The GREEN Economy
  • Low Impact Site Development
  •  
  • Detention and Volume Contro l
    • Stormwater Mitigation
    • Detention Underneath
    • Elimination of Detention Ponds
  • How Much Water ? Rainfall Surface Area Water Volume 1/4” 43,560 ft 2 6,800 gallons 1/2” 43,560 ft 2 13,600 gallons 1” 43,560 ft 2 27,200 gallons
  • Base Storage Capacity Base Depth Surface Area Void Space Storage Capacity 12” 43,560 ft 2 40% 130,300 gallons 18” 43,560 ft 2 40% 195,500 gallons 24” 43,560 ft 2 40% 260,700 gallons
  • Infiltration
    • Replenishes the Groundwater Supply
    • Currently 50% of our Drinking Water
    • In the Future 80% of our Drinking Water
  • Soil Infiltration Rates Soil Texture Infiltration (in/hour) Sand 8.30” Loamy Sand 2.41” Sandy Loam 1.02” Loam 0.52” Silt Loam 0.27” Sandy Clay Loam 0.17” Clay Loam 0.09” Silty Clay Loam 0.09” Clay 0.06”
  • Improved Water Quality
    • Removes Suspended Solids
    • Removes Phosphorus, Nitrogen, and Metals
    • Removes Harmful Pollutants - Oil
    • Water Polishing - the final step in cleaning
  • Pollutant Removal *Infiltration Trenches & Porous Pavement Pollutant Median Pollutant Removal* Suspended Solids 95% Phosphorus 70% Nitrogen 51% Metals 99%
  • Roadside Traction
    • Less Water
  • Roadside Traction
    • Less Ice
  • Design Considerations
    • Rainfall Intensity
    • Rainfall Duration
    • Runoff Coefficient is Zero
    • Underdrain for Soil Infiltration Rates of less than 1/2” per Hour
    • Release Rate
  •  
  • Components of Permeable Pavement
    • Pavement
    • Joint Aggregate
    • Setting Bed Aggregate
    • Base Aggregate
    • Subbase Aggregate
    • Subgrade
    • Edge Restraint
    • Under-Drain
    • Geotextile Fabric
  • Pavement
    • Pavers
    • Concrete
    • Asphalt
    • Single-sized Aggregate
    • Resin Bound
  • Joint Aggregate
    • Pavers only
    • Initial Filter
    • 1/4” crushed, angular, chip stone
    • ASTM No. 8
  • Setting Bed Aggregate
    • Used in all systems
    • Smooth Leveling Course
    • No Sand
    • ASTM No. 8
  • Base Aggregate
    • Used when subsoil conditions allow
    • Minimum thickness 4”
    • ASTM No. 57
  • Subbase Aggregate
    • Not always necessary
    • Dictated by Subsoil Conditions
    • Used for additional structural stability
    • ASTM No. 2
  • Subgrade
    • Existing Soil
    • Percolation
    • California Bearing Ratio
    • Penetrometer
  • Edge Restraint
    • Vitally Important
    • Concrete Curb for Vehicular Traffic
    • Plastic may be Sufficient for Non-vehicular areas.
  • Underdrain Pipe
    • Subsoil Permeablity
    • Detention Requirements
    • Release Rates
    • Not Always Necessary
  • Geotextile Fabric
    • Based Upon Existing Soil Characteristics
    • Between Subsoil and Base Aggregate
  • Components of Permeable Pavement
    • Pavement
    • Joint Aggregate
    • Setting Bed Aggregate
    • Base Aggregate
    • Subbase Aggregate
    • Subgrade
    • Edge Restraint
    • Under-Drain
    • Geotextile Fabric
  •  
  • Police Station
    • Aurora, Illinois
  • Buckingham Fountain
    • Chicago, Illinois
  • Porous Paving • Green Roofs • Rain Gardens • RainWater Harvesting NEW TOOLS FOR SUSTAINABLE SITE DEVELOPMENT
  •  
  •  
  • Special Thanks
  • P.O. BOX 124 WESTFIELD, INDIANA 46074 317-674-34949 GREEN WATER INFRASTRUCTURE, INC. TOM BARRETT