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Schedule and Community Questions
Find details about Lake Hills and NW Lake Sammamish Sewer Upgrade project schedule. You can also read common questions and answers about the project.
Project Schedule
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2014: Pre-Design (complete)
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2015: Early Design (complete)
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2018: Final Design (current)
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2029: Construction
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2024: Operations
These dates are estimates. The project schedule may change because of permit needs or delays. We will share updates on our progress throughout the project.
Community Questions
These questions and answers are available in English, Chinese, Hindi, Korean, and Russian.
Chinese: to be added
Hindi: to be added
Korean: to be added
Russian: to be added
About the project
- What is the Lake Hills and NW Lake Sammamish Sewer Upgrade project?
- What are the project’s goals and benefits?
- Where is the project located?
- What is the project timeline?
- How will this project connect to the existing system?
- How will this project affect traffic?
- How will this project affect the Sammamish River Trail?
- Will I still be able to get in and out of my neighborhood?
- Will this affect school drop-off, pick-up, and bus routes?
- How will emergency services get through?
- Will you ever fully close any roads?
- Can you build the pipe in small sections to reduce impacts?
- Where will construction start? What is the order of the work?
- Will you use trenchless or open cut construction?
- How long will streets be dug up?
- Will the project impact or remove trees?
- How will natural areas be restored after construction?
- How will King County protect fish and wildlife during construction?
Who is paying for this project?
- Will you shut off sewer service?
- Will there be construction on private property?
- Will there be impacts to my landscaping?