The municipal engineering networks and regional public works portfolios within the City of Oshawa have launched a high-priority structural design phase. Tracked under local capital infrastructure registries on Thursday, June 25, 2026, corporate administrators finalized the launch details for Detailed Design for Conlin Rd. E. from Edenwood Dr. to Harmony Rd. N. The City of Oshawa has formally retained major engineering consultancy firm CIMA+ to deliver the extensive structural blueprints required to transform the congested northern corridor into a modern, high-capacity arterial transit artery.
The multi-million-dollar project runs in coordination with the Region of Durham, combining local roadway widening with massive sub-surface utility replacements to handle rapid residential growth in the city’s northern neighborhoods.
The Multi-Lane Engineering Scope and Corridor Reconfigurations
The engineering plans cover a major stretch of Conlin Road East, aiming to eliminate historic bottleneck points and introduce modern traffic control systems.
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Roadway Expansion Nodes: The project will completely reconstruct and widen Conlin Road East from its current two-lane bottleneck layout to a continuous four-lane cross-section stretching from Edenwood Drive all the way east to Harmony Road North.
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Active Transportation Corridors: To improve pedestrian safety, design crews are mapping out a wide multi-use pathway running along the south side of the road, complemented by a new 1.8-meter standard concrete sidewalk on the north side.
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Intersection Transformations: The traditional intersections at Wilson Road North and Laurelview Street will be completely replaced with high-velocity roundabouts to keep traffic moving smoothly. Additionally, a new fully actuated traffic signal system will be installed at the Riverton Street intersection.
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Sub-Surface Civil Works: Workers will install an updated network of storm sewers to manage runoff, while the Region of Durham’s parallel utility crew handles a new high-pressure concrete water main, sanitary forcemains, and vital intersection expansions at both Ritson Road North and Harmony Road North.
Analyzing the 2026 Conlin Reconstruction Feedback Timeline
City engineers are opening up the preliminary blueprints to public scrutiny, setting up a formal review period where property owners can flag drainage or driveway issues before construction begins.
| Scheduled Project Milestone Phase | Date and Operational Window | Physical Venue / Communication Channel | Primary Public Engineering Objective |
| Public Open House Event | Wednesday, July 15 (7:00 p.m. – 9:00 p.m.) | Delpark Homes Centre (1661 Harmony Rd N) | Review detailed layout maps & question CIMA+ engineers |
| Active Feedback Window | June 25 through July 29, 2026 | Service Oshawa Intake Dashboards | Log formal property owner concerns |
| Strict Submission Cutoff | Wednesday, July 29 at 12:00 p.m. Sharp | Engineering Services Portal / Evan Woodcock | Finalize design adjustments before tender issuance |
Municipal project manager Evan Woodcock is leading the civil review process. Residents can submit feedback directly by calling 905-436-3311 extension 2377, or via email at EWoodcock@oshawa.ca. Property owners who want to submit feedback on paper can coordinate their delivery through Service Oshawa. Engineering staff emphasize that feedback from local property owners is incredibly valuable for catching grading or utility access issues before the final project contracts are put out to bid late this year.
Oshawa residents, local business owners, and commuters looking to view preliminary corridor blueprints, read the upcoming public presentation slide decks, or check detailed intersection layouts can find the active tracking page online at oshawa.ca/conlinreconstruction.
