The City of Hamilton is looking at adding a roundabout to the Highway 52 and Powerline Road West intersection.
The stretch of road is in the community of Summit, just south of Copetown and west of Ancaster.
The City of Hamilton initiated a Municipal Class Environmental Assessment (EA) process back in March 2025 to “develop and assess alternative solutions to address traffic safety and related concerns raised by the local community both at and immediately adjacent to the intersection of Highway 52 and Powerline Road West.”
The city held Public Information Centres in April 2025 and October 2025 on the potential improvements.
City documents say that the primary objective of the study is to “improve public safety for all road users, including pedestrians and cyclists.”
The city already made some operational improvements to the area in 2024, including new curve warning signage, pavement markings, and community safety zone signs.
The city has decided to install interim left-turning lanes on Highway 52 in 2025, and detailed design work for the ultimate improvements will begin in 2026.
The intersection at Highway 52 and Powerline Road West also includes the entrance to a parking lot for a community mailbox and the Hamilton to Brantford Rail Trail.
The Rail Trail crosses Highway 52 just south of Powerline Road West.
Further south of that crossing is the Highway 52 and Powerline Road East intersection.
Highway 52 curves around multiple woodlots and the 27-hectare Summit Muskeg Preserve (also sometimes called the Summit Bog or Copetown Bog).
The city says that concerns with traffic at the Highway 52 and Powerline Road West intersection date back to the early 2000s, and that a roundabout was recommended in 2011 but was put off due to budget pressures.
Traffic analysis indicates that there were 28 collisions in the immediate area between 2018 and 2022.
A total of 11 collisions (39 per cent) were rear-end collisions, while 10 (36 per cent) were single motor vehicle collisions. Three of the 10 single motor vehicle collisions involved an animal.
Staff have identified a north roundabout and south left turning lane to be their preliminary preferred solution.
If it receives Council approval, a roundabout would be constructed at Highway 52 and Powerline Road West that would also provide access to the Rail Trail parking lot.
At Highway 52 and Powerline Road East, a new left-turning lane would be added, and the existing right-turning lanes would be improved.
The city has also proposed realigning the Rail Trail so that the trail would cross Highway 52 via the south leg of the new roundabout.
If approved, pedestrian crossing signals will be installed on Highway 52.
In the next steps for the plan, a Draft Environmental Study Report will be circulated in December 2025, the complete Environmental Study Report will be released for public review and comment in Winter 2026, as well as the Issue Notice of Study Completion and 30-day public review period.
Detailed design would then take place in quarter two of 2026, with agency, landowner, and utility relocate approvals in 2027, and construction in 2028.
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