A new phase of construction will move traffic in all lanes of Interstate 5 near the Tacoma Dome into new configurations.
Shortly after the July 4 holiday, northbound I-5 drivers will be relocated onto newly-built northbound I-5 lanes over I-705. Once that traffic shift is completed, crews will reconfigure southbound I-5 lanes into two distinct roadways, separated by barrier.

WSDOT created a YouTube video to help drivers understand the lane shift.

Find more information on the WSDOT project page.