Green Stormwater Solutions for Silverdale

To protect Dyes Inlet shellfish and keep our water safe for swimming and wading, Kitsap County studied options for improving Silverdale’s stormwater infrastructure. This study helped identify and prioritize potential locations to integrate stormwater retrofits on public property, in
right-of-way, and on private property.

These “green” stormwater solutions, sometimes called low impact development (LID), include rain gardens (bioretention) and pervious pavement. Green infrastructure uses natural features to keep stormwater runoff close to its source. By keeping water on site, green infrastructure reduces flooding, removes pollutants, and replenishes our ground water.
It can also be used to add green spaces to the neighborhood features, such as sidewalks, trails, and public open space.

The Silverdale LID Retrofit Plan was completed in January 2013. Prior to completion of the plan the highest priority opportunity sites were moved forward into design and construction planning. These sites are the Duwe’iq Wetland Treatment Facility, the Silverdale Way Water Quality (WQ) Treatment Planter Boxes, and the Ridgetop Median Green Streets. Ecology grant funding was awarded for partial funding of the Silverdale Way WQ Treatment Planter Boxes and County funding was used to purchase property for the Duwe’iq Wetland Treatment Facility. In 2012 the County applied for partial Ecology grant funding for the Ridgetop Median Green Streets. It is anticipated to complete construction of these three high priority projects by 2016 and will result in stormwater treatment of approximately 40 acres of road runoff currently receiving little or no pollution removal.

For more information contact Mindy Fohn (360) 337-5777 or mfohn@co.kitsap.wa.us

 Project Documents                                                                                              

Presentations and Handouts

• Silverdale Low Impact Development Retrofit Plan -
  Herrera Environmental Consultants, Inc., 1/31/13

• Silverdale LID Handout

• Presentation to Central Kitsap Community Council - 9/21/11

• Presentation - 10/12/11 Open House

• Handout - 10/12/11 Tour of YMCA

Articles:

• Kitsap Sun article - "Kitsap County sets sights on improving Silverdale stormwater"
  from September 15, 2011

Renderings:

• Costco Parking Lot

• Ridgetop Boulevard

• Silverdale Way near Bucklin Hill Road

• Jenny Wright School

• Silverdale Way near Mickelberry Road

 Photos and Drawings                                                                                                           

 
   By soaking up stormwater naturally, we can make a difference in the future health of Dyes Inlet
   

 Retrofit Project Schedule                                                                                            

Staff contact:   Mindy Fohn, (360) 337-5777 or mfohn@co.kitsap.wa.us