Question: The CNR Bonnet Carré Spillway-Baton Rouge Bridge is a 1.3 mile (2,092 m or 6,864 ft) bridge that carries which rail line, of Canadian Class I freight railway headquartered in Montreal, Quebec that serves Canada and the Midwestern and Southern United States?
Sentence (from "Canadian National Railway"): CN was government-owned, having been a Canadian Crown corporation from its founding to its privatization in 1995.
Relevant evidence: No