About the Project
Kitsap County is known for its award-winning Stormwater Parks – Manchester Stormwater Park and Whispering Firs Stormwater Park.
Now we’re exploring opportunities to create new stormwater parks that improve water quality while providing community green space. These parks are designed to capture and treat stormwater runoff before it reaches streams, lakes, and Puget Sound, while also offering places for people to walk, relax, and connect with nature.
Through this planning study, Kitsap County and regional partners will identify locations where stormwater parks could provide the greatest environmental and community benefits. The study will evaluate watersheds across approximately 300 square miles of Kitsap County, including areas within the cities of Bremerton, Port Orchard, and Poulsbo.
The outcome of this work will be a set of concept plans and preliminary cost estimates for stormwater park sites to be considered for future design and construction when budget or grants become available.
Why Stormwater Parks Matter
Stormwater parks are multi-benefit spaces that combine stormwater treatment with public park features.
When rain runs off roofs, roads, and parking lots, it picks up pollutants that flow straight into local waterways. Stormwater parks filter and slow this runoff. Cleaner water helps protect salmon and shellfish and improves water quality. The parks also make neighborhoods greener and provide inviting places to gather and play.
Tell Us What You Think
Community participation will be key to making this project a success. We’ll share updates and seek input at key stages of the project. See the “What’s Happening Now” section at the top of the web page.
We want to hear from you! Your feedback helps us understand community priorities, identify opportunities, and design spaces that support clean water and healthy neighborhoods.
Click the button below to ask questions about the project or to share your thoughts and help shape future stormwater parks in Kitsap County.
Project Goals
This study will help Kitsap County plan for future stormwater parks by:
• Evaluating water quality needs across Kitsap County watersheds
• Identifying priority watersheds and subbasins (geographic regions) where stormwater parks could have the greatest impact
• Screening potential sites that could support stormwater treatment and park features
• Developing concept designs and preliminary cost estimates for at least three priority sites
• Considering community benefits, including equity, recreation, and environmental improvements
The study focuses on planning and site identification, not final design or construction. The selected sites may later be considered for inclusion in the Stormwater Division’s Capital Improvement Program.
How Sites Will Be Selected
The project team will work with partner jurisdictions, Tribes, and community members to build a clear set of criteria for choosing potential park sites. This includes looking at space, existing drainage issues, environmental needs, and community priorities.
Step 1: Evaluate Subbasins
Using geographic data and water quality information, the project team will evaluate watersheds across Kitsap County to determine where stormwater parks could provide the greatest benefit.
Step 2: Identify Priority Watersheds
Using geographic data and water quality information, the project team will evaluate watersheds across Kitsap County to determine where stormwater parks could provide the greatest benefit.
Step 3: Screen Potential Sites
Using geographic data and water quality information, the project team will evaluate watersheds across Kitsap County to determine where stormwater parks could provide the greatest benefit.
• Existing land use and impervious surfaces
• Proximity to waterways with water quality impairments
• Stormwater treatment potential and drainage area
• Ecological and habitat benefits
• Opportunities for park amenities
• Community needs and support
• Equity and environmental justice considerations
• Construction feasibility and cost
Step 4: Develop Concept Designs
At least three priority sites will be selected for conceptual stormwater park designs and preliminary cost estimates.
Community and Partner Collaboration
This project brings together a regional working group of agencies, Tribal governments, and local jurisdictions to ensure the planning effort reflects shared priorities and community needs.
Partners include:
Project Timeline
2025
- Project development
- Data collection and review
- Formation of the project Working Group
Late 2025- Early 2026
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Watershed and subbasin prioritization
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Site screening and evaluation
2026
- Development of conceptual designs for priority stormwater park sites
- Preparation of cost estimates and project summary materials
Late 2026
- Final report and project completion
Funding and Next Steps
