Prepare yourself for a potential traffic nightmare in Seattle this weekend. The Washington State Department of Transportation (WSDOT) have closed all lanes of northbound I-5 as they continue work on the Revive I-5 project.

Ramp and lane closures began Friday night and last through Monday morning. All northbound lanes beginning at the West Seattle Bridge to the Olive Way off-ramp are closed through the weekend, and traffic won't open until Monday at 5 a.m.

WSDOT says the northbound lanes will begin to taper down near the I-405 interchange.

Also see: Westbound US 2 trestle near Everett closed this weekend

The closure and roadwork are weather dependent. The goal of WSDOT's project is to replace 37 expansion joints.

The closure is a major component of "Revive I-5," a months-long renovation project by WSDOT. The total cost of the project is estimated at $51.2 million. Take a deeper dive into the reasons behind the closures on WSDOT's blog.

Related: Drivers survive Revive I-5 closures in downtown Seattle

WSDOT will close the following ramps during the weekend construction:

  • I-405 southbound ramp to northbound I-5 (applies to HOV and general purpose ramps)
  • Southcenter Boulevard on-ramp to northbound I-5
  • Interurban Avenue on-ramp to northbound I-5
  • MLK Jr Way on-ramp to northbound I-5
  • Boeing Access Road on-ramp to northbound I-5
  • Swift Avenue on-ramp to northbound I-5
  • Corson Avenue/Michigan Street on-ramp to northbound I-5
  • Northbound I-5 off-ramp to Edgar Martinez Drive
  • Northbound I-5 off-ramp to Seneca Street
  • Northbound I-5 off-ramp to Express Lanes
  • University on-ramp to northbound I-5

WSDOT suggest the following alternatives for drivers:

  • Use public transportation
  • Use light rail
  • Carpool or vanpool
  • Bike
  • Walk
  • Use state routes 99, 509, 518 and I-405 instead
  • Travel before 8 a.m. or after 8 p.m.
  • Move any discretionary travel to another weekend.
  • Plan on spending the night in Seattle to avoid traveling during the closure.

This is the last full northbound closure planned for this summer. One more closure is planned for August:

  • August 10-13: Two lanes open

Also happening this weekend, the southbound lanes of I-5 will be reduced to two lanes over the Ship Canal Bridge from 2 a.m. to noon on Sunday, July 15 (45th Street on-ramp to southbound I-5 will be closed during this time).

Also see: SR 99 lane closures in north Seattle will last up to one year