West Toronto Diamond

About the Project: West Toronto Diamond is a Canadian railway junction linking tracks of Canadian National Railway with those of Canadian Pacific Railway. The $277 million rail to rail grade separation project will convert the West Toronto Diamond into a grade separated junction by depressing the CN line under the CP track, thus allowing GO Transit, VIA Rail and CN trains to pass through a new underpass.

Our Task: To install interlocking steel pipe pile and caisson walls, 36” (900 mm) in diameter and up to 80’ (24 M) deep, over a two km long compressed corridor with the help of B-6505 hammers on L23 vertical travel leads, using 165-ton cranes.

Techniques used: Secant/Caisson Walls