Major construction begins at Maple Leaf Portal & Roosevelt Station sites

Starting as early as this week, Sound Transit's excavation and tunneling contractor, JCM Northlink LLC, will begin work at the Maple Leaf Portal and Roosevelt Station sites.

Check out the Maple Leaf Portal construction alert to learn how work will affect First Ave. N.E. between N.E. 90th and N.E. 100th streets.

In Roosevelt, early work will include closing N.E. 66th and N.E. 67th streets to through traffic at the construction site and closing the sidewalk on the west side of 12th Ave. N.E. between N.E. 65th and N.E. 68th streets. These closures will remain in effect for several years until about 2019.

Roosevelt road, sidewalk, and parking closures expected as early as this week

Survey crews will also be working around the Roosevelt construction site soon. Work will begin at the U District Station site later this fall.Sound Transit will provide construction alerts as we learn more details about early work. We've also scheduled construction update open houses in October (see below).