This bridge crosses the Kicking Horse River, on the old alignment of the Canadian Pacific Railway up the 'Big Hill' at Kicking Horse Pass near the town of Field in British Columbia.
The railway was realigned in 1909 to lower the grade, and this bridge was bypassed. The line now goes through the famous 'Spiral Tunnels', which were a sight to see but very hard to photograph!
Cheers,
Jason.