The Globe and Mail reports in its Friday, May 29, edition that Canadian National Railway is diverting its mainline rail traffic after the collapse of a Minnesota bridge. The Globe's Eric Atkins writes that the wooden bridge burned and collapsed on Wednesday morning. The bridge crosses the Rat Root river near International Falls in northern Minnesota and carries about 10 per cent to 15 per cent of CN's freight volumes. CN said it is building a replacement bridge that is expected to take three days to complete. Chicago-bound trains from Western Canada are being diverted over the top of Lake Superior and south into Michigan. BMO analyst Fadi Chamoun says the stoppage could "modestly" reduce CN's second quarter results. He says, "We believe this route serves as a key corridor for international intermodal volumes from Prince Rupert and Vancouver to the U.S. Midwest." According to local news reports, the CN train was heading southbound at 12:30 a.m., when it rounded a corner and the engineer saw the wooden trestle was on fire. "He hit the emergency brake, but obviously he couldn't stop in time," says Koochiching county Sheriff Perryn Hedlund. No injuries were reported.