Expect delays: Seattle's SR 99 tunnel, Montlake Boulevard interchange to close this weekend

Seattle drivers should expect delays staring Friday as several major thoroughfares are scheduled to be closed through the weekend.

All ramps that connect Highway 520 and Montlake Boulevard will close from 10 p.m. on Friday to 5 a.m. on Monday so crews can install sewer, communications and gas lines in the area. Parts of Lake Washington and Montlake boulevards near the construction site will also be closed during that window.

The Montlake Bridge will be closed to vehicles from Friday night to early Monday morning. The west sidewalk will remain open while repairs are made. Bicycles and pedestrians should follow signs for detours at Northeast Pacific Street or East Shelby Street to cross the Montlake Cut.

Additionally, the Highway 99 tunnel will be closed in both directions from 10 p.m. Friday to 8 a.m. Sunday. Crews there will be performing regularly scheduled maintenance.

Despite the closures, there is a bit of good news for Seattle motorists.

First, there will likely be fewer cars on the road Saturday and Sunday given that there are fewer scheduled sports events than normal for a fall weekend. The Seahawks played Thursday, the Huskies have their bye week and — tragically — the Mariners season is over.

Second, three North Seattle light-rail stations opened last weekend, which should allow more people to skip roadway congestion.

Those who plan to travel by water this weekend should also be aware that the West Seattle Water Taxi is out of service Saturday and Sunday for repairs, and Washington State Ferries continues to cancel some sailings because of crew shortages