10/23/2026
Planning a trip through downtown Grimsby next week? Here’s what you need to know:
🌙 Night work on Mountain Street: Starting Sunday, October 25, at 8:00 p.m., crews will prepare the previously installed watermains for commissioning. Expect rolling lane closures along Elm Street and Main Street overnight.
🚧 Mountain Street closure continues: Mountain Street remains fully closed to through traffic between Elm Street and Main Street while work continues. Cars must follow the designated local detour.
🌙 Main Street and Christie Street night closure: Starting Monday, October 26, the intersection will be closed overnight from 8:00 p.m. to 6:00 a.m. each night for the remainder of the week. It will reopen every morning.
🚛 Heavy truck detours: Heavy trucks travelling between Mountain Road and the QEW must follow the designated regional detour routes. Check the regional truck detour plan for the appropriate route.
🛣️ Main Street West paving: Paving between Forty Mile Creek and Patton Street is tentatively scheduled for Thursday, October 29.
📍 Plan ahead: Review the traffic and detour maps before travelling, allow extra time and follow posted signage and traffic control.
🔗 Visit www.letstalkgrimsby.ca/dr-construction to review next week’s full traffic plan, local detour and regional truck detour routes.
Thank you for your continued patience as construction progresses downtown.