translate English to French: Additional links to the US rail system were established with the International Bridge across the Niagara R, and the impressive St Clair Tunnel beneath the St Clair R. At Confederation the GTR was the largest railway system in the world, with 2055 km of track; by the late 1880s it had grown to over 700 locomotives, 578 cars, 60 post-office cars, 131 baggage cars, 18 000 freight cars and 49 snowplows.
Au moment de la Confédération, le GTR est le plus grand réseau ferroviaire au monde, avec 2055 km de voies. À la fin des années 1880, il s'est encore agrandi avec plus de 700 locomotives, 578 wagons, 60 wagons postaux, 131 wagons à bagages, 18 000 wagons de marchandises et 49 chasse-neige.