Article content With deconstruction of Montreal’s Champlain Bridge set to begin in earnest, workers will soon complete the development of migratory corridors for fish in the St. Lawrence River. The corridors are intended to reduce the impact of the a jetty on fish in the river, Jacques Cartier and Champlain Bridges Inc. said. The two migratory corridors should be operational for the migration period and the spawning of the fish next spring. We apologize, but this video has failed to load. Try refreshing your browser, or Migratory corridors for fish to be completed before old Champlain Bridge torn down Back to video