Seattle traffic: SR 520 closure, lane restrictions on I-5, I-90

President Biden's Seattle visit Friday could impact traffic

Get ready to pack your patience if you're planning a trip to and from Seattle and the Eastside this weekend.

SEATTLE - Traffic in Seattle could cause some headaches for drivers this Mother's Day weekend.

In addition to President Biden's visit, a six-game Mariners homestand and other local events, there will be construction taking place on the SR-520 Bridge throughout the weekend.

The Washington State Department of Transportation (WSDOT) says the SR-520 Bridge will be closed in both directions across Lake Washington May 10 through May 13.

If you're planning to hit the roads this weekend, keep reading to learn how President Biden's Seattle visit and the 520 bridge closure could impact your drive.

What is the SR 520 bridge closure schedule?

Map showing where the closures will take place on Seattle's SR-520 bridge over the weekend

The Washington State Department of Transportation (WSDOT) says the SR-520 Bridge will be closed in both directions across Lake Washington starting on May 10 through May 13. (Photo: Washington State Department of Transportation)

WSDOT says crews will begin working on the SR 520 Bridge starting at 10 p.m. on Friday, May 10. Crews will be installing utilities, permanent pavement and working continuously through Monday, May 13 at 6 a.m.

In addition, officials say Lake Washington Boulevard will be closed from Montlake Boulevard to East Foster Island Road from 10 p.m. Friday, through 6 a.m. Monday, May 13.

The SR- 20 bike and pedestrian trail will also be fully closed from 6 a.m. on Saturday to 5 a.m. on Monday as crews install a sign bridge over the freeway.

For more information about the SR 520 Bridge closure this weekend, visit WSDOT’s website.

How will President Joe Biden’s visit to Seattle impact traffic this weekend?

US president Joe Biden disembarks from Airforce One after arriving in Geneva. (Photo by Martial Trezzini - Pool/Keystone via Getty Images)

While details about President Biden’s weekend schedule have not yet been released, White House officials have confirmed that he will be in Seattle on May 10 and May 11.

The Seattle Department of Transportation (SDOT) is warning drivers to expect significant travel delays and detours in the greater Seattle-area in the coming days.

SDOT said in a blog post Thursday: "During President Biden’s visit, the U.S. Secret Service has the authority to provide security, including requiring intermittent closures of freeways and streets. The flow of buses and cars in downtown Seattle and around the region will be affected. While the President’s exact travel route and timing are not published in advance, travelers can still plan ahead by anticipating delays and temporary road closures."

SDOT also reminded drivers in the post that its "engineers can adjust traffic signal timing within the city of Seattle based on expected closures and any necessary re-routing. If needed, SDOT said it will post messages on its dynamic message signs.

With the potential for intermittent closures of freeways and streets by the U.S. Secret Service during President Biden's visit, the Seattle Marines advised fans Friday to expect delays and to consider alternative transportation methods such as public transit, biking or walking to the ballpark.

What other projects are happening this weekend?

Northbound I-5 reduced to one lane Everett to Marysville

I-5 North from Everett to south of Marysville will be down to one lane from 9 p.m. Friday, May 10 to 6 a.m. Saturday, May 11.

Eastbound I-90 tunnel lane closures

Regular tunnel maintenance is scheduled for eastbound I-90 between Seattle and Mercer Island. The left 2 lanes will be closed from 10 p.m. Friday, May 10 to 6 a.m. Saturday, May 11 for testing and inspections.