Drivers in Saint John should prepare for significant lane and ramp closures affecting the One Mile House Viaduct and sections of Route 1 from Thursday, November 6 to Saturday, November 8, 2025. The City of Saint John announced the upcoming disruptions in a traffic advisory issued on behalf of the Department of Transportation and Infrastructure (DTI) and Gateway Operations.

These closures are scheduled to accommodate necessary work in the area. If you travel through these key corridors, you will need to plan for detours and potential delays.

The City of Saint John has announced several lane and ramp closures affecting Route 1 access. Image: City of Saint John

Closure Schedule and Locations

The closures are divided into two main phases. Be sure to check which dates affect your specific route.

Thursday, November 6 to Friday, November 7

• The northbound lane of the One Mile House Viaduct will be closed.
• The eastbound on-ramp from the One Mile House Viaduct to Route 1 will be closed.

Saturday, November 8

• The eastbound on-ramp from the Crown Street and Gilbert Street Underpass to Route 1 will be closed.
• The eastbound off-ramp from Route 1 to the One Mile House Viaduct will be closed.

How to Prepare

Officials advise all drivers to allow for extra travel time during the closure period. Detour signage will be in place to guide you around the affected areas. Poor weather could extend the work, so it is important to stay updated.

For the latest real-time information on road conditions and closures, check the NB511 service. Gateway Operations also reminds everyone to slow down and drive with extra caution when approaching the work zones.

Frequently Asked Questions

What specific areas are affected by the closures?

The closures impact the One Mile House Viaduct and nearby on-ramps and off-ramps connecting to Route 1, including access from the Crown Street and Gilbert Street Underpass.

When exactly will these closures be in effect?

The first set of closures runs from Thursday, November 6 to Friday, November 7, 2025. The second set is scheduled for Saturday, November 8, 2025.

Will there be detours?

Yes, detour signs will be posted to direct traffic around the closed sections. You should follow the marked routes and plan for a longer commute.

What happens if there is bad weather?

The advisory notes that the closures may extend into the weekend if weather conditions are unfavorable. Check NB511 for the most current information.

Who can I contact if I have more questions?

For further details, you can contact Gateway Operations directly at 1-888-860-8399.