MITL completed a project for the Federal Bridge Corporation which assessed the impacts of potential closures to the Champlain Bridge in Montreal. Given that the main part of Montreal is an island, the metropolitan economy is very dependent on its river crossings. Congestion in the vicinity of these crossings is already a major problem. In the event of a moderate seismic event, there is the possibility that the crossing could be closed for several years. This project studied various closure scenarios and their implications for traffic patterns and also the competitiveness of the metropolitan economy.