Canadian Northern Railway - Obstacles in The Rockies

Obstacles in The Rockies

CNoR's initial expansion in the 1890s and 1900s had been relatively frugal, largely by acquiring bankrupt companies or finishing failed construction projects. By the 1910s, significant expenses were adding up from the construction north of Lake Superior and the Mount Royal Tunnel, but the largest costs were from building on "the wrong side" of the Thompson and Fraser rivers in the mountains of British Columbia. CPR already had trackage on the desirable eastern side, leading to the port of Vancouver, forcing CNoR to blast tunnels and ledges out of these canyons.

The most infamous construction folly on the CNoR in British Columbia happened in 1913, when blasting for a passage for the railway at Hells Gate triggered an enormous landslide which partially blocked the narrow swift-flowing Fraser River. The resulting damage to Pacific salmon runs took decades to reverse by the governmental construction of fishways.

In addition to difficult construction between Jasper, Alberta, and Vancouver, CNoR started construction west of Edmonton in 1910, fully two years later than GTPR, which had started construction east from Prince Rupert in the Skeena River, leading to Yellowhead Pass.