
The site was chosen to avoid a passage through mountains. It was sheltered from storms by the two huge glaciers, and it was a flat straight route making it ideal for a railroad.
Winds travelling south down the river valley, commonly reached speeds of 85 MPH. While building the bridge they had to construct wind barriers. Strong gusts would knock down the barriers and they would have to wait for the winds to subside to rebuild the barriers and resume construction. The bridge needed to be built to withstand these extreme weather conditions. These weather conditions slowed down the building of the bridge especially when it reached temperatures of -60° Farhenheit.