The City of Oshawa has announced a major infrastructure project that will see the reconstruction and widening of Conlin Road East from east of Harmony Road North to Kurelo Drive.
The project also includes the construction of a new roundabout at Grandview Street North and Conlin Road East.
According to the city, work will begin in August and is expected to continue through to November 2026. The city’s contractor, Graham Bros., is scheduled to begin mobilizing around August 5.
The scope of work includes:
- Reconstruction and widening of Conlin Road East from Harmony Road North to Kurelo Drive
- A new roundabout at Grandview Street North and Conlin Road East
- Installation of a new storm sewer along Conlin Road East
- A new multi-use pathway on the south side of Conlin Road East from Coppermine Street to Kurelo Drive
- A new sidewalk on the north side of Conlin Road East from Harmony Road North to west of Kurelo Drive
- Regional infrastructure work, including a new watermain near Harmony Road North, Coppermine Street, and Cayenne Street, and a new sanitary sewer at Coppermine Street
The roundabout at Grandview Street North is expected to be constructed and completed in 2025, while the remaining work between Harmony Road North and Grandview Street North will be finished in 2026.
Closures and detours
Full road closures will be required during construction.
In 2025, the intersection of Grandview Street North and Conlin Road East will be fully closed. Conlin Road East will also be closed from Coppermine Street to Kurelo Drive. During this time, residents in the subdivision north of Conlin Road East near Grandview Street North are advised to use Brittania Avenue to access either Harmony Road North or Coppermine Street.
In 2026, Conlin Road East will be closed from Harmony Road North to the west side of Grandview Street North. Further advance public notices will be issued to provide exact dates and details for future closures.
