City of Oshawa and the Region of Durham, Ontario

Environmental Assessment and Detailed Design for Stevenson Road North Corridor Urbanization

Client: City of Oshawa/The Regional Municipality of Durham, Ontario
Our Role: Consultant Responsible for Environmental Assessment, Detailed Design and Construction Support

Intersection with marked crosswalk, curb ramp, and traffic signals along a commercial roadway under gray skies.

Stevenson Road North is a key north–south corridor within Oshawa’s Northwood Business Park, yet its existing rural condition no longer aligns with the demands of a growing employment area and evolving transportation network. The corridor must support increased development, improve safety, and accommodate a wider range of users, all while maintaining essential municipal services. At the same time, the city needed to balance immediate infrastructure needs with community concerns about widening and property impacts. GFT worked with the City of Oshawa and the Region of Durham to shape a forward-looking approach that addresses current deficiencies, supports near-term growth, and preserves flexibility for long-term expansion within a constrained corridor.

Key Features

Municipal Class Environmental Assessment Schedule ‘C’ and detailed design assignment. 
Full reconstruction and urbanization from a two-lane rural cross-section with open ditches and granular shoulders to a complete urban arterial road. 
Active transportation improvements, including a new multi-use pathway. 
Intersection improvements to address operations, Accessibility for Ontarians with Disabilities Act (AODA), and corridor tie-ins, including new traffic signals at Conlin Road West and upgraded signals at Taunton Road West, including bike signals.
Drainage upgrades, including conversion from rural drainage conditions to an urbanized stormwater drainage system, with coordination around culverts, low points, and roadside drainage features.

Outcomes

Advanced a rural-to-urban corridor transformation that supports municipal growth, improved mobility, and complete street objectives.
Augmented roadway safety through geometric refinements, vertical curve corrections, intersection grading, roadside safety upgrades, and better corridor lighting.
Enhanced pedestrian and cycling connectivity through the introduction of active transportation facilities along the corridor.
Improved accessibility and intersection functionality through coordinated grading, tie-ins, lighting, and AODA-informed design development.