Public engagement

Visit our online open house and share your thoughts!

In early 2026, the project team identified a corridor for a new wastewater pipe in the northeast Lake Sammamish area. We launched an online open house to provide an opportunity for people to learn more about the project and project corridor. The online open house includes a survey for people to share their thoughts and questions.

Visit the online open house by clicking below.

The online open house and survey are available in seven languages:  

• English: Visit our online open house and complete the survey. 
• Español (Spanish): Visite nuestra sesión virtual abierta al público y complete la encuesta en español 
  
• 中文 (Chinese, Simplified): 访问我们的在线开放日并参与简体中文问卷调查  
  
• 正體字 (Chinese, Traditional): 歡迎參加我們的線上開放日，並填寫繁體中文問卷 
• 日本語 (Japanese): 日本語でのオンラインオープンハウスとアンケートをご希望の方  
• 한국어(Korean): 저희 온라인 오픈 하우스를 방문하셔서 한국어로 된 설문 조사를 작성해 주십시오  
• Русский (Russian): Посетите Виртуальный День Открытых Дверей и поучаствуйте в опросе на русском
  
   

How we work with the community

King County works with the community to provide project information and identify potential impacts. Stay informed and involved as we share information through:

• Individual meetings with community groups, organizations and leaders
• Briefings to local community groups, agencies and jurisdictions
• Community meetings
• Project newsletters and flyers
• Project webpage

Our commitment to you

Whether you live, work, recreate or commute in the area, we know you’ll have questions and concerns about this project. King County is committed to keeping you up to date.

If you are interested in scheduling an individual meeting or briefing for your community organization, please contact our project community services team at SammamishPlateauDiversionProject@kingcounty.gov or 425-537-7216.