Stormwater Master Plan Update

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Stormwater Master Plan Update

Ver esta página en español l The City of Wilsonville is updating its Stormwater Master Plan. Managing the City's storm water protects the environment, property, and supports healthy watersheds for fish, wildlife and recreation. This video from the Environmental Protection Agency provides a more in-depth explanation of the benefits.

Last updated in 2012, The City's Stormwater Plan guides how the community should address and manage urban storm runoff in the future. To plan more effectively, we recently conducted a public survey; thank you to the 90 community stakeholders who responded. The survey is now closed.

Learn more about stormwater, Wilsonville’s stormwater system, and the master plan update using the tabs below. Have a question? Submit it for our project managers under the "Master Plan Update FAQ" tab.

Thanks for your participation.


Ver esta página en español l The City of Wilsonville is updating its Stormwater Master Plan. Managing the City's storm water protects the environment, property, and supports healthy watersheds for fish, wildlife and recreation. This video from the Environmental Protection Agency provides a more in-depth explanation of the benefits.

Last updated in 2012, The City's Stormwater Plan guides how the community should address and manage urban storm runoff in the future. To plan more effectively, we recently conducted a public survey; thank you to the 90 community stakeholders who responded. The survey is now closed.

Learn more about stormwater, Wilsonville’s stormwater system, and the master plan update using the tabs below. Have a question? Submit it for our project managers under the "Master Plan Update FAQ" tab.

Thanks for your participation.


Updating the Master Plan

We've answered a few basic questions about stormwater master planning below. If there's a question we haven't answered, and you'd like additional information, please submit it and we'll provide more information. 

You need to be signed in to add your question.

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    When was the Stormwater Master Plan last updated?

    6 months ago

    The Stormwater Master Plan was last updated in 2012. Since then, Wilsonville has grown from 19,525 residents to 25,635 residents with over 800 local businesses. Wilsonville is one of Oregon’s fastest growing cities. 

    In addition to rapid population growth, land use changes and new stormwater regulations have been enacted since 2012. The updated Stormwater Master Plan will help address these.  

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    Does the City provide resources to help local business operators maintain private stormwater facilities?

    6 months ago

    In 2012, the City of Wilsonville did produce guidance to help local operators maintain effective stormwater runoff on private property. You can find that information here

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    How does an updated stormwater masterplan benefit our community?

    6 months ago

    The updated Stormwater Masterplan provides a comprehensive, integrated, and adaptive plan to:

    • Develop system capacity to accommodate growth
    • Repair, retrofit or replace aging infrastructure
    • Improve the enviornment and protect water quality
    • Help ensure stormwater infrastructure is maintained and managed effectively
    • Meet updated or new stormwater regulations
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    What is a stormwater master plan?

    6 months ago

    A stormwater master plan is a comprehensive document that contains goals, objectives, policies and recommendations that guide how a city will address challenges associated with urban stormwater.

    The City uses a stormwater master plan to identify and prioritize stormwater programs and projects to support current needs, address system deficiencies, and support future growth.

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    What will be included in the City’s Stormwater Master Plan update?

    6 months ago

    The Wilsonville Stormwater Master Plan update will include city-wide recommendations of policies, programs, system improvements and capital investments to address flooding, erosion, water quality, and system maintenance needs. The Wilsonville Stormwater Master Plan update will review identified capacity concerns within the existing city limits as well as growth areas for new development to identify project opportunities. Land use and renewed regulatory requirements will be considered in project, program, and policy recommendations.

    The City of Wilsonville is working with a consultant, Brown and Caldwell, to research and develop the Plan. Initial project efforts will include staff interviews, community surveys, stormwater code and policy reviews, and evaluation of stormwater flows and stream hydrology throughout Wilsonville.  

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    How can I weigh in on the new stormwater master plan?

    6 months ago

    We invite and encourage your feedback.  To make it easy, here are several ways you can get involved:



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    When will the new master plan be complete?

    6 months ago

    The Stormwater Master Plan update is expected to be complete in 2022.

Page last updated: 18 May 2021, 12:32