Overview

Ontario Highway 28 is a provincial highway in Ontario, Canada. The route follows a general southwest–northeast alignment and is listed at 162.6 kilometres in length. It begins at an intersection with Highway 7 a few kilometres east of Peterborough and terminates at the community of Denbigh where it meets Highway 41. The road provides a regional link between smaller towns, rural areas and recreational regions north of the Greater Toronto Area.

Route and characteristics

For most of its length the highway is a two‑lane rural road, passing through mixed agricultural and forested landscapes. It serves local traffic, commercial vehicles serving nearby communities, and seasonal visitors accessing lakes, cottages and provincial parks. Road geometry, shoulder width and passing opportunities vary along the corridor, reflecting changes in terrain and traffic volumes.

History and administration

The route has existed in various forms as part of Ontario’s numbered highway network. Historically it extended farther south through Peterborough-area jurisdictions and into Northumberland County, but as part of highway responsibility transfers in the late 1990s the southern 63 kilometres were transferred to local control (1997–1998). Like other provincially designated roads, maintenance and major capital work on the remaining provincial portion are managed by the Ministry of Transportation of Ontario.

Uses and importance

Highway 28 acts as a connector rather than a high-capacity trunk route. It is important for:

  • local communities that rely on the road for commerce and daily travel;
  • access to recreational properties and outdoor destinations in the region;
  • linking smaller highways and facilitating regional movement between provincial routes.
Seasonal patterns can affect travel speeds and safety considerations, with higher volumes during long holiday weekends and cottage season.

Key facts and notable points

  • Official length: 162.6 km (provincial portion).
  • Orientation: southwest to northeast, from near Peterborough to Denbigh.
  • Major connections: begins at Highway 7, ends at Highway 41; intersects several regional roads.
  • Administrative change: southern 63 km transferred to local control in 1997–1998.

Readers seeking route maps, traffic advisories or maintenance schedules can consult provincial resources and local municipal pages for the most current information. For context on Ontario’s highway classification and maintenance practices, official provincial materials provide additional background and updates.