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Pervious Asphalt: Stormwater Design Considerations

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Presentation prepared for the 2010 ASCE International LID Conference

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Pervious Asphalt: Stormwater Design Considerations

  1. 1. Stormwater Design Considerations By Amie Broadsword, PE and Chris Rhinehart, PE
  2. 2. <ul><li>ECOLOGICAL: </li></ul><ul><ul><li>Mimics natural system for greater ecological function </li></ul></ul><ul><li>PRACTICAL: </li></ul><ul><ul><li>Hydraulic considerations (i.e. less depth to meet required storage volume) </li></ul></ul><ul><ul><li>Less time to construct </li></ul></ul><ul><li>ECONOMIC: </li></ul><ul><ul><li>Cost savings </li></ul></ul>
  3. 3. <ul><li>SNOQUALMIE POINT COMMUNITY PARK </li></ul><ul><li>BRICKYARD PARK AND RIDE LOT EXPANSION </li></ul>
  4. 4. <ul><ul><ul><ul><ul><li>Retention storage provided in reservoir course under pavement with full infiltration. WQ treatment is provided by infiltration </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>into native soil beneath pavement. </li></ul></ul></ul></ul></ul>
  5. 6. Detention storage in arch-pipe system under pavement with discharge to downstream biofiltration swale for WQ Treatment
  6. 7. Arch pipe detention system section
  7. 10. Amie Broadsword, PE [email_address] Chris Rhinehart, PE [email_address] PACE Engineers www.paceengrs.com 206-441-1855

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