Drivers should plan ahead for delays on southbound State Route 99 through downtown Seattle for the next two weekends as crews will reduce to one lane near the stadiums and close a southbound off-ramp, said officials with the Washington State Department of Transportation.
From 7 p.m. Friday until 5 a.m. Monday, crews will close the right lane of southbound SR 99 between Columbia Street and South Royal Broughman Way, and the southbound off-ramp to South Atlantic Street.
Crews will drive more than 50 pilings to support the construction of the new overpass.
"The pile-driving work will happen in a tight space just a few feet from the right lane of SR 99 and the off-ramp," said Matt Preedy, Alaskan Way Viaduct Replacement Program deputy administrator. "These closures keep drivers and crews safe while getting the work done each weekend."
From Dec. 21-24, crews will reduce southbound SR 99 to one lane and the southbound off-ramp to South Atlantic Street.
Crews will open the off-ramp two hours prior to the Dec. 23 Seahawks game at CenturyLink Field and will close again an hour after kickoff.