HDR will deliver engineering services for the planned Steeles Avenue corridor improvements in Halton, Canada. The project represents a significant investment by the region, designed to improve public safety and address future travel demand in the town of Milton, Ontario.
The project includes multiple complexities in its 1.5km corridor, including two road-under-rail grade separations (involving two separate Class I railroads), a new rail-over-water bridge and two road-over-water bridges. A new greenfield alignment will allow a wider four-lane road but will be adjacent to an environmentally sensitive UNESCO-designated biosphere reserve, requiring management to limit adverse impacts during and after construction. The expanded road will also cross a large floodplain that will require careful mitigation.
HDR will start with preliminary design and continue through detailed and final design, tender preparation, construction management and post-construction services. The complex grade separations will be a key task, requiring a mix of municipal engineering and Class I railroad design experience.
“The Steeles Avenue improvements highlight our staff’s ability to deliver grade separations of all configurations,” said Cristian Huma, the project manager for HDR. “We have experience in design and construction of over 20 complex grade separations throughout Canada, and the Region will benefit from our depth of experience, unmatched resources, and technical expertise.
