Stormwater and Surface Water Systems Plan

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Over 11 billion gallons of rain fall on Redmond in a typical year.

Redmond’s stormwater system collects rainwater runoff and conveys it to stormwater ponds and underground vaults, which store and slowly release water into our lake, river, and streams. To guide future investments and ensure long‑term system performance, the City is developing the Stormwater and Surface Water Systems Plan (SSWSP). This plan will help prevent flooding and pollution, restore natural habitats, and support the health of our lake, river, and streams for the entire community. The SSWSP will bring together stormwater utility programs into a coordinated framework that defines objectives for stormwater and surface water management and outlines a comprehensive approach to achieving them.

We began developing the plan about two years ago. Early outreach showed:

  • Strong support for pollution control, flood prevention, water quality, and maintenance.
  • Interest in green stormwater infrastructure and expanded educational efforts.
  • A desire for innovative stormwater management solutions and stronger partnerships.

Since then, we have been drafting the SSWSP, incorporating community feedback and aligning the plan with City goals. A complete draft is expected to be available for public comment in December.

We Need Your Feedback

Because this plan will serve the entire Redmond community, your input is essential. Feedback on what matters most to you will help us improve stormwater services and programs and shape the plan’s priorities. All responses are anonymous.

The SSWSP is organized around four goals.

  1. Manage the stormwater utility responsibly to ensure regulatory compliance.
  2. Provide reliable and resilient stormwater services that protect people and property.
  3. Support a thriving, growing community.
  4. Protect and improve the health of Redmond's waters.

For each goal, the City is developing strategies that go beyond baseline work. For example, the first goal focuses on the responsible management of the stormwater utility to ensure regulatory compliance. Our existing stormwater program forms the baseline, which includes work such as:

  • Source control inspections.
  • Illicit discharge detection and elimination (including spill response and prevention).
  • Runoff control.
  • Stormwater pollution prevention and planning.
  • Infrastructure operations and maintenance.
  • Education and outreach.

Additional strategies to go beyond the baseline include actions such as:

  • Improved tools to support asset management (such as mapping, data management and visualization of natural resources and built infrastructure)
  • Watershed planning to identify areas needing stormwater pollution reduction projects.
  • Expanded education and outreach on spill prevention and pollutant reduction.
  • Fish barrier removal efforts.

In the questionnaire below, please help us prioritize the strategies we will pursue in going beyond the baseline by sharing your thoughts on which strategies are most important to meeting those goals.

Over 11 billion gallons of rain fall on Redmond in a typical year.

Redmond’s stormwater system collects rainwater runoff and conveys it to stormwater ponds and underground vaults, which store and slowly release water into our lake, river, and streams. To guide future investments and ensure long‑term system performance, the City is developing the Stormwater and Surface Water Systems Plan (SSWSP). This plan will help prevent flooding and pollution, restore natural habitats, and support the health of our lake, river, and streams for the entire community. The SSWSP will bring together stormwater utility programs into a coordinated framework that defines objectives for stormwater and surface water management and outlines a comprehensive approach to achieving them.

We began developing the plan about two years ago. Early outreach showed:

  • Strong support for pollution control, flood prevention, water quality, and maintenance.
  • Interest in green stormwater infrastructure and expanded educational efforts.
  • A desire for innovative stormwater management solutions and stronger partnerships.

Since then, we have been drafting the SSWSP, incorporating community feedback and aligning the plan with City goals. A complete draft is expected to be available for public comment in December.

We Need Your Feedback

Because this plan will serve the entire Redmond community, your input is essential. Feedback on what matters most to you will help us improve stormwater services and programs and shape the plan’s priorities. All responses are anonymous.

The SSWSP is organized around four goals.

  1. Manage the stormwater utility responsibly to ensure regulatory compliance.
  2. Provide reliable and resilient stormwater services that protect people and property.
  3. Support a thriving, growing community.
  4. Protect and improve the health of Redmond's waters.

For each goal, the City is developing strategies that go beyond baseline work. For example, the first goal focuses on the responsible management of the stormwater utility to ensure regulatory compliance. Our existing stormwater program forms the baseline, which includes work such as:

  • Source control inspections.
  • Illicit discharge detection and elimination (including spill response and prevention).
  • Runoff control.
  • Stormwater pollution prevention and planning.
  • Infrastructure operations and maintenance.
  • Education and outreach.

Additional strategies to go beyond the baseline include actions such as:

  • Improved tools to support asset management (such as mapping, data management and visualization of natural resources and built infrastructure)
  • Watershed planning to identify areas needing stormwater pollution reduction projects.
  • Expanded education and outreach on spill prevention and pollutant reduction.
  • Fish barrier removal efforts.

In the questionnaire below, please help us prioritize the strategies we will pursue in going beyond the baseline by sharing your thoughts on which strategies are most important to meeting those goals.

Page last updated: 25 Sep 2026, 04:24 PM