SODO overpass construction closes State Route 99 off-ramp this weekend
Crews will close the southbound State Route 99 off-ramp near Seattle’s stadiums this weekend to complete pile driving for the new South Atlantic Street overpass.
Thanks to hard work last weekend, contractor Atkinson Construction will not close a lane on southbound SR 99 as previously planned. Crews were able to drive 48 of 53 pilings last weekend. They will drive the remaining five pilings and finish welding on another 20 pilings while the ramp is closed this weekend.
- At 4 a.m. Saturday, Dec. 22, crews will close the southbound SR 99 off-ramp to South Atlantic Street.
- Crews will reopen the ramp at 2:30 p.m. Sunday for fans heading to the Seahawks game at CenturyLink field. The ramp will be closed again at 5:30 p.m., 10 minutes after kickoff.
- The ramp will reopen by 5 a.m. Monday.
Crews must close the ramp to safely complete work on the remaining pilings, which are located just west of the ramp. The pilings will serve as the foundation of a temporary structure that will support construction of the South Atlantic Street overpass until it can stand on its own.