Project Updates
Graham is proud to announce a significant milestone on the Terwillegar Drive Stage 2 project for the City of Edmonton, AB. The team has successfully completed the installation of three girder lines: one for the westbound traffic bridge, one for the eastbound traffic bridge, and one for the new independent shared-use path bridge over Rainbow Valley. Each girder line spans approximately 190 meters and weighs between 270,000 and 300,000 kilograms.
A combination of tandem crane lifts and launches was used to install the girders. The heaviest lift involved hoisting four spliced girders simultaneously, with a total weight of 135,000 kilograms. To minimize traffic disruptions, the erection of the eastbound bridge was completed overnight, requiring four different roadway configurations each night to maintain smooth traffic flow.
This milestone represents a major step forward in the Terwillegar Drive Stage 2 project and highlights Graham’s ongoing commitment to excellence and innovation in construction.
Time-lapse video shot on Feb. 25, 2025. (00:35)
About the Project
Delivered under a Construction Consultant General Contractor (CCGC) contract, this vital infrastructure project will enhance capacity for commuters in Edmonton’s southwest, address key gaps in active transportation modes, and improve transit access—all with a focus on safety and efficiency.
Terwillegar Drive Stage 2 includes the widening of Whitemud Drive between 53 Avenue and 122 Street, encompassing the following scope:
- Widening and rehabilitation of the twin Rainbow Valley bridges
- Construction of a new pedestrian bridge over Rainbow Valley
- Construction of a new pedestrian bridge over Whitemud Drive at 142 Street
- Construction of five retaining walls, including an MSE wall, a ground anchor wall, and three cast-in-place gravity walls
- Construction of a noise wall adjacent to existing residences
- Roadway renewal and widening throughout the project alignment
The project is progressing on schedule and is expected to be completed in fall 2026.
