System Planning

Seattle Public Utilities is developing a 50-year plan for managing and improving Seattle's drainage and sewer system. Learn more about how we're planning for the future in our Drainage 50-Year Plan fact sheet.

To support our long-term plan, we have several technical analysis underway. Learn more about this technical work.

For more information on system planning, contact Leslie Webster, Drainage and Wastewater System Planning Program Manager, at (206) 386-1838.