I freaked out when I read the signs saying 395 would be closing for a week because I drive over the Blue Bridge multiple time a day. The WDOT website does not have very clear instructions about exactly where the construction will be so I called and interviewed Project Engineer Moe Davari.

They are closing northbound 395 just south of the Blue Bridge until just past the Lewis Street exit. They are working on the overpass bridge on the Lewis Street exit. That section of road will be closed starting Wednesday night the 18th at 9 pm until Thursday the 19th at 5am and then will be open until Thursday at 9pm. That section of road will then be closed all weekend from Thursday 9pm until Monday the 23rd at 5am. During that time all northbound traffic will be diverted across the cable bridge or around on I-240.

That section will close again at 9pm on Monday the 23rd and open for good on Tuesday morning the 24th around 5am.