Blog

• Welcome to our new website! - Jun 13, 2011

  Welcome to the new website for Washington Stormwater Center. Take some time to look around, find our fun corners (like Stormwater Channel) or view a few photographs in our Gallery. Want to read about

News

• May 17, 2012 - EPA Launches Competition for College Students to Develop Innovative Approaches to Stormwater Management

    WASHINGTON – The U.S. Environmental Protection Agency (EPA) is launching a new design competition called the Campus RainWorks Challenge to encourage student teams on college and univer

• May 07, 2012 - Job Opportunity with Washington Stormwater Center

  The Washington Stormwater Center (WSC) is seeking a Municipal Resource Center Specialist to lead the coordination of the WSC Municipal Resource Program. Some responsibilities: create and lead Prog

• Apr 30, 2012 - Spokane Valley Spring Cleaning Starts

  SPOKANE VALLEY --  The City of Spokane Valley has started its own spring cleaning. The spring city-wide street sweep has begun and is expected to complete in mid-June.  To read more abou

• Apr 18, 2012 - Stormwater Pollution Study Offers Road to a Cleaner Future

  Stormwater may not seem like a concern in a city famous for its ample sunshine, but officials with the city of Yakima and Yakima County don't see it that way. Read the full article here: http://

• Feb 01, 2012 - Developers to Legislature: Save us from runoff rules

  By Robert McClure/InvestigateWest Just as state environmental officials are getting close to issuing long-awaited, court-ordered rules to rein in the largest source of toxi

• Jan 05, 2012 - Northwest Releases More Than 100 Million Pounds of Toxic Chemicals

  by David Steves The latest report from the Environmental Protection Agency Thursday finds facilities in the three Northwest states released a combined 105 million pounds of toxic ch

• Jan 05, 2012 - Porous Pavement Performance in Cold Climates

  by Tom Ballestero and Rob RoseenDue to the need for improved stormwater management, the application of porous pavements is increasing dramatically in northern areas with cold climates. Yet, there

• Jan 03, 2012 - The Porous Road Less Traveled

  by Lisa StifflerPermeable pavement can make old-school road engineers and pavement builders anxious. To them, the idea of water seeping through roads like they’re made of Swiss cheese just d

• Dec 02, 2011 - Municipal Stormwater Grant Funding Available

  *** DUE DATE EXTENDED TO FRIDAY, JANUARY 20, 2012 ***The Washington Department of Ecology is soliciting grant proposals for projects of regional or statewide significance to support implementation of

• Nov 10, 2011 - Report: NW Ocean Acidification

  Tiny sea butterflies dissolve before researchers' eyes. Baby oysters die by the tankful. These are just a few of the consequences found when scientists try to raise marine creatures in increasingly co

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Events

• South Sound Phase II Group Meeting

  May 24, 2012 4:00pm

• APWA Surface Water Managers Committee

  May 18, 2012 4:00pm

• NPDES Permit Coordinators Forum

  May 23, 2012 4:00pm

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Photo Gallery

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  Nearly complete permeable paver installation

  Within an hour's time, this entire parking area was laid by one crew.
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  Straight stacking speeds installation

  To speed up the installation process, the stacks of pavers must be stacked straight, with limited shifting to keep the pavers tight together, and therefore easier for the machine to lift.
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  Tapping pavers into place

  To ensure a close fit, pavers are tapped together after being laid in groups.
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  Speedy installation

  Using a machine such as this, one crew could potentially install an 8,000 to 10,000 square foot paver section in one work day.
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  Laying pavers

  While the pavers are positioned by this machine they are guided into place with assistance to ensure the locking edges mate.
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  Mechanical assistance laying pavers

  This machine has a special attachment used to pick up and place a group of 24 pavers at a time.
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  Installation of a permeable paver parking area
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  Bedding course application

  Finishing off the bedding course aggregate application for a permeable paver installation.
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  Guide rails removed, spaces filled in

  The guide rails were removed, and the spaces filled in with additional bedding course aggregate during this permeable paver installation.
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  Permeable paver aggregate layers exposed

  In this staged installation, the subbase reservoir (1.5-3" open-graded), base reservoir (0.5-1.5" open-graded), and bedding course (0.375-0.5", ASTM No.8) layers can each be identified.

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Files

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Guidance Documents

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Literature

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Video

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