Detour route for planned road closures of Interstate 5 through Lakewood, WA

Reminder: Weekend closure set for Berkeley Street overpass and I-5 ramps

Feb. 27, 2020


At 8 p.m. Friday, Feb. 28, design-build contractor Atkinson Construction will close the northbound and southbound Interstate 5 off- and on-ramps to Berkeley Street and the existing Berkeley Street overpass. The around-the-clock closure of this interchange to all travelers allows crews to connect the new overpass to the Madigan Army Medical Center gate.

During the weekend closure:

  • Tillicum residents and businesses will use the Thorne Lane interchange to access I-5.
  • Travelers who use the Madigan Gate will use alternate gates such as Lewis Main Gate at 41st Division Drive or the Logistics Gate off of Murray Road Southwest to reach Joint Base Lewis-McChord.
Detour route for planned road closures of Interstate 5 through Lakewood, WA

What happens Monday, March 2?

At 5 a.m. Monday, March 2, the new Berkeley Street overpass and the new off- and on- ramps will open to travelers, with one exception. Commuters coming from Tillicum or Camp Murray will not be able to turn left from the new Berkeley Street overpass to northbound I-5. They will temporarily detour to Thorne Lane to reach northbound I-5. This detour will remain in place until Monday, March 16.

WSDOT planned detour through Tillicum neighborhood for Interstate 5 construction

Detour maps are available on the project web page.

This work is part of a project designed to add capacity to I-5 through the Joint Base Lewis-McChord corridor.

An updated construction schedule that lists overnight ramp closures for this project is available on Before heading out the door, travelers can find the latest road conditions on the WSDOT app and by following the WSDOT regional Twitter feed.