June 6, 2009, tug ECOSSE pulling and bigger tug MARY E. HANNAH pushing barge CBC 4507 carrying a load of 875,000 pounds preparing to enter firs door Beauharnois locks on the St-Lawrence Seaway near Montreal; very risky task; that big kind of boiler used in distilliation process was built in Spain then ship by boat to Montreal port; there they put that thing on a barge to an unknow destination????. It is the biggest product that ever transit through the Montreal Maritime Installation.It takes 7 minutes to raise ships 42 feets to be at the same level as the second door of the locks