City of Markham Construction Notice – John St. Over CN Rail Bridge – Expansion Joints Replacement
City of Markham Construction Notice August 31, 2026 Topic: John St. Over CN Rail Bridge – Expansion Joints Replacement Start Date: September 25, 2026 End Date: December 2, 2026 What is happening? The City of Markham is replacing the expansion joints on John St. over the CN Rail Bridge. This project is part of