A ship retainer system was designed, and built upstream of the recently constructed A30 bridge at Beauharnois, Quebec.
New pontoon and buoy designed to replace a boom designed and built by the US Corp of Engineers in 1984.
Cylindrical steel pontoons were used to create ice resistent safety booms, one 23km long, replacing the previous booms that did not provide enough resistance to the frazil ice at Hydro Québec's Beauharnois Generating Station