The West Lake Sammamish Parkway Project is getting started in March of 2013. There will be a public meeting on 12/18/2013 at the Bellevue City Hall, room 6W-107, from 2:30pm to 4:00pm. If you are interested in attending, please come a few minute early, and meet at the Service desk on the main floor, and ask for Paul Krawczyk, who will need to escort you to the sixth floor. Paul is the City of Bellevue Transportation Manager in charge of this Project. Bellevue City Hall is located at 450 110th Ave. NE. Directions to City Hall are here.
Starting in March, the West Lake Sammamish Parkway will become a one-way North bound route for around 10 months. See the map below and click on it for access to a bigger map detailing the detour.
For more details about the project please read about it here