From the Seattle DOT:
Paving on Market Street next two weekends
The Seattle Department of Transportation (SDOT) will close NW Market Street/N 46th Street from Third Avenue NW to Phinney Avenue the next two weekends while department crews replace worn concrete panels in the roadway. The closures will be from 7 a.m. on Saturday, May 3 to 7 p.m. on Sunday, May 4 and again on Saturday, May 10 at 7 a.m. to 7 p.m. on Sunday, May 11. The detour route to the nearest arterials will be as follows: Eastbound travelers will go to Third Avenue NW, then to Leary Way NW, and then up N 39th Street to Phinney Avenue N. Westbound motorists will be encouraged to take Fremont Avenue N to N 39th Street and then down to Leary Way. Westbound traffic can also take Phinney Avenue N to Greenwood Avenue N then N 85th Street (Truck Route). There will be local access through this area for folks who live here.