 the chambly canal is a national historic site of canada in the province of quebec, running along the richelieu river past saint-jean-sur-richelieu, carignan, and chambly. building commenced in 1831 and the canal opened in 1843. it served as a major commercial route during a time of heightened trade between the united states and canada. trade dwindled after world war i, and as of the 1970s, traffic has been replaced by recreational vessels. it is part of a waterway that connects the saint lawrence river with the hudson river in the united states. lake champlain and the champlain canal form the u.s. portion of the lakes to locks passage. the canal has 10 bridgesâ8 of which are hand operatedâand nine hydraulic locks. * draft:  * clearance:  * canal length:  * dimensions of smallest lock:  * passage time: 3 to 5 hours == gallery == file:ecluse de chambly.jpg|locks in chambly file:ecluse de chambly, chambly, qc.jpg|lock in chambly, viewed in winter. file:pont gouin canal chambly 2011-05-23.jpg|lock in saint-jean-sur-richelieu flooded during the 2011 lake champlain and richelieu river floods ==references==  ==external links==  *official website  
Buildings_and_structures_in_MontA(c)rA(c)gie Canals_in_Quebec Canals_opened_in_1843 Chambly,_Quebec History_of_MontA(c)rA(c)gie National_Historic_Sites_in_Quebec Transport_in_MontA(c)rA(c)gie Visitor_attractions_in_MontA(c)rA(c)gie