Washington Stormwater Center

Blog

Rainwater harvesting seminar attended by over 100 people - Jul 20, 2011
Over 100 people attended the rainwater harvesting technical seminar on June 23, 2011, co-sponsored by Washington Stormwater Center and CONTECH Construction Products. The half-day seminar started with
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
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 08, 2012 - GSI-Calc software now available
GSI-Calc was developed to assist permittees in implementing low impact development (LID) by providing a regional sizing tool for LID stormwater Best Management Practice (BMP) design in western Washing
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 25, 2012 - How a rain garden cleans industrial pollution
"...Totem Ocean Trailer Express (TOTE), a shipping company that hauls cargo between Tacoma and Alaska, couldn’t meet some of the tight pollutant discharge requirements in its Washington State in
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
Nov 23, 2011 - Save the Dates for the 2012 LID Technical Workshop Series!
Pre-registration will be required. Details on how to register, course location and other details are on line at: http://conferences.wsu.edu/lidworkshops The Washington State University (
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

LID Technical Workshop: Site Planning, TESC, Plan Review, and Inspection
May 22, 2012 8:30am—May 23, 2012 4:30pm

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Photo Gallery

Nearly complete permeable paver installation

Within an hour's time, this entire parking area was laid by one crew.
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.
Tapping pavers into place

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

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

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

Finishing off the bedding course aggregate application for a permeable paver installation.
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.
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.