A new traffic signal will be activated at the west end of the Sellwood Bridge before the afternoon commute on Wednesday, December 11. The work will require lane closures in the area between 9 a.m. and 4 p.m. That day the northbound ramp of Highway 43 that passes under the bridge will close permanently so that work can begin on the east half of the new interchange. Traffic on Highway 43 and the bridge will pass through the new signal until the new two-level interchange opens in fall 2015.