The Champlain Bridge is completely closed this weekend in the direction of Montreal as crews work to replace joints in the structure.
All access ramps to the Champlain from Highway 10 west and Highway 132 are also closed.
The closure is scheduled to last until 5 a.m. Monday.
This is the second of four "construction blitzes" scheduled for the bridge on weekends in September and October. The next blitz will be Oct. 1 and 2.