Since opening to deeper draft vessels in 1959, more than two billion tonnes of cargo estimated at $300b has moved along the St. Lawrence. The St. Lawrence Seaway Management Corporation continuously evaluates new technology in its quest to build upon its systems for the safe, reliable movement of vessels. Earlier this year, Rutter Technologies was successful in winning an order for a bridge-mounted radar system to track vessel traffic approaching that bridge. The requirement had some unique technical challenges, including the ability to be remotely monitored and controlled from the St. Lawrence Seaway Management Corporation's control centre some 60 kilometers away.