sentences:  Another issue to contend with is that Newfoundland had abandoned its Canadian National/Newfoundland Railway lines ( gauge until 1988–1990), turning it into the Newfoundland T'Railway, a rail trail spanning the entire island.An automobile tunnel would be most likely unfeasible due to the length needed to cross the strait, and the difficulties of removing automobile exhaust and bringing in fresh air via large circulation fans throughout the tunnel.Although Alaska is currently not connected to the North American rail network, there are plans to connect it via BC Rail's incomplete but graded rail extension to Dease Lake, where the rails have been laid to Jackson, British Columbia.