How long will construction last?

    Construction starts in late 2021, and overall will take four years, but most locations will see much shorter work durations. There will be times when construction is occurring in several locations simultaneously.

    How will King County communicate with MI residents during construction?

    King County is committed to being a good neighbor during construction. Staff will provide advance notification of construction activities as well as a 24-hour construction hotline. This is a big project and most people won’t be impacted by all of it. That’s why King County is planning targeted communications for different locations and different concerns.

    How do I find out more?

    Visit for more project information.  Sign up for project email alerts on that webpage, or sign up for text alerts by texting KING MERCERSEWER to 468-311. The project website is updated regularly with new information.