(WSDOT rendering of the 99 “south portal” including the future overpass)
First road-work announcement for 99/Alaskan Way Viaduct in a while – from WSDOT:
Drivers should plan for delays on southbound State Route 99 through downtown Seattle the next two weekends. Crews working for WSDOT will reduce SR 99 to one lane near the stadiums and close the southbound off-ramp to South Atlantic Street. During the closures crews will drive more than 50 pilings to support construction of the new South Atlantic Street overpass.
Dec. 14-17 weekend
Crews will close the right lane of southbound SR 99 between Columbia Street and South Royal Brougham Way and the southbound SR 99 off-ramp to South Atlantic Street from 7 p.m. Friday, Dec. 14, to 5 a.m. Monday, Dec. 17.
Dec. 21-24 weekend
Crews will close the right lane of southbound SR 99 between Columbia Street and South Royal Brougham Way and the southbound off-ramp to South Atlantic Street from 7 p.m. Friday, Dec. 21, to 5 a.m. Monday, Dec. 24.
Crews will reopen all lanes of SR 99 and the South Atlantic Street off-ramp two hours prior to the Sunday, Dec. 23, Seahawks game at CenturyLink Field. The ramp and southbound lane will close again an hour after kickoff, and reopen by 5 a.m. Monday, Dec. 24
Construction on the overpass started last summer and is scheduled for completion by the end of 2013. The overpass will improve mobility by allowing freight haulers and commuters to bypass the rail crossing near the entrance to the Port of Seattle’s Terminal 46.