SNCF to operate the reopened Nantes-Châteaubriant tram-train line March 3, 2014 | Europe News Service commenced on the Nantes-Châteaubriant tram-train line in north-western France with the reopening of a 64-km long single-track line, which had been closed in 1980. The project cost of EUR... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password