This post originally appeared on Orphan Road.

From WSDOT:

Crews will close all lanes of northbound I-5 from 11:30 p.m. Saturday, Dec. 5, to 8 a.m. Sunday, Dec. 6, between Boeing Access Road and Spokane Street. I-5 on-ramps in the area will start closing as early as 9 p.m. Crews will again close all lanes of northbound I-5 from 11:30 p.m. Dec. 12 to 8 a.m. Dec. 13 between Boeing Access Road and I-90.

The following ramps will be closed from 9 p.m. Saturday, Dec. 5, to 8 a.m. Sunday, Dec. 6:

Boeing Access Road and Martin Luther King Jr. Way S. to northbound I-5
Swift Avenue S./S. Graham Street to northbound I-5
Corson Avenue/S. Michigan Street to northbound I-5

A signed detour will direct drivers to exit at Martin Luther King Way (exit 157) to Airport Way and back onto I-5 via Edgar Martinez Way/SR 519. Drivers should consider taking alternate routes like I-405 or SR 99 to avoid long delays and backups.

Plan accordingly.