Technical fact sheet

Aerial view of Darvard Island, dam and fishway

Draught: 3.66 m (12 ft.)
Clearance: 8.84 m (29 ft.)
Lock dimensions: 99.06 m (325 ft.) X 12.04 m (39 ft.)

Because of fixed bridges and overhead power lines, vessels with masts exceeding 8 meters must unmast at Saint-Paul-de-l'Île-aux-Noix located upstream of the Saint-Ours Canal or at Sorel located downstream of the Saint-Ours Canal.