Transforming Main Street: A Safer, Greener, More Connected Corridor
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The City of Saint John is transforming Main Street and the Viaduct, one of the city’s most significant transportation corridors, into a safer, greener, and more inclusive route for everyone. This exciting road reconstruction project began this month (May 2025) and is expected to be completed by September 2025.
This major investment will reshape how we move between the South Central Peninsula and the Old North End and beyond. Designed with accessibility and mobility in mind, the project prioritizes walking, cycling, and public transit while still accommodating vehicle traffic.
What to Expect During Construction
Construction is underway as of May 2025.
A single lane of traffic will remain open in each direction on Main Street throughout the project.
Temporary closures on feeder roads will be required to complete the work, with clear detour signage in place.
Ramp closures will also occur at certain stages of the project, and we’ll provide timely updates and detour information to help you plan ahead.
About the Project
We’re reimagining this vehicle-dominated corridor to support a more balanced transportation network. The redesign includes:
A Road Diet, reducing six vehicle lanes to four and reallocating space for active transportation and green space
Protected bike lanes and shared pedestrian-cyclist paths
Traffic calming treatments at crossings near highway-style ramps
Improved Transit stops for a better rider experience
Speed limit reduction to support safer, slower travel
An enhanced centre median for enhanced green space and the ever-popular Marigolds on Main
This transformation responds to key priorities in MoveSJ, PlanSJ, and the Central Peninsula Secondary Plan, all of which call for a more balanced, connected, and sustainable street network.
Main Street North and the Viaduct, currently designed for high-speed, high-volume vehicle traffic, will become a modern, multi-use corridor that better reflects the needs of our growing and evolving community. With its proximity to Harbour Passage and high pedestrian use, the area is ready for this long-overdue change.
We invite you to explore the conceptual designs and project photos
This is your street, your city, and your future!
The City of Saint John is transforming Main Street and the Viaduct, one of the city’s most significant transportation corridors, into a safer, greener, and more inclusive route for everyone. This exciting road reconstruction project began this month (May 2025) and is expected to be completed by September 2025.
This major investment will reshape how we move between the South Central Peninsula and the Old North End and beyond. Designed with accessibility and mobility in mind, the project prioritizes walking, cycling, and public transit while still accommodating vehicle traffic.
What to Expect During Construction
Construction is underway as of May 2025.
A single lane of traffic will remain open in each direction on Main Street throughout the project.
Temporary closures on feeder roads will be required to complete the work, with clear detour signage in place.
Ramp closures will also occur at certain stages of the project, and we’ll provide timely updates and detour information to help you plan ahead.
About the Project
We’re reimagining this vehicle-dominated corridor to support a more balanced transportation network. The redesign includes:
A Road Diet, reducing six vehicle lanes to four and reallocating space for active transportation and green space
Protected bike lanes and shared pedestrian-cyclist paths
Traffic calming treatments at crossings near highway-style ramps
Improved Transit stops for a better rider experience
Speed limit reduction to support safer, slower travel
An enhanced centre median for enhanced green space and the ever-popular Marigolds on Main
This transformation responds to key priorities in MoveSJ, PlanSJ, and the Central Peninsula Secondary Plan, all of which call for a more balanced, connected, and sustainable street network.
Main Street North and the Viaduct, currently designed for high-speed, high-volume vehicle traffic, will become a modern, multi-use corridor that better reflects the needs of our growing and evolving community. With its proximity to Harbour Passage and high pedestrian use, the area is ready for this long-overdue change.
We invite you to explore the conceptual designs and project photos
