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1 Street S.W. Corridor Improvements

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Project update – April 7, 2017

Construction related to the 1 Street S.W. Corridor Improvement project will begin mid-April with anticipated completion by Fall 2017. The contractor, Marmot Construction Ltd., will complete the improvements in stages and will coordinate site activities in a way that minimize impacts to businesses, residents, pedestrians and motorists.

Construction on Stages 1 and 2 will begin over the next month.

Stage 1 will involve utility work across 1 Street S.W. at 10-11, 11-12, 14-15 and 15-17 Avenues, and across 10 Avenue east of 1 Street. Stage 2 will involve full block reconstruction of sidewalks along the east side of 1 Street between 10 and 12 Avenues.

In addition, aging and unhealthy trees along the corridor will soon be removed. As construction proceeds, new trees will be planted in similar locations, in a new tree trench that is designed for improved tree health and longevity.

The location and design of some bus stops will be modified through this project to improve Calgary Transit customer service and safety. During construction some road closures may temporarily impact Transit operations. Information on any Transit detours will be posted at bus stops in advance of the detour and by Calgary Transit via social media.

About the project

This project will improve the streetscape for pedestrians and transit riders by providing:

  • wider sidewalks
  • prominent crosswalks
  • upgraded LED pedestrian and street lighting
  • additional bike racks
  • increased number of on-street parking spaces
  • new tree plantings.

The design builds on the existing character of the blocks located between 12 and 14 Avenues, extending the streetscape design along the full length of the corridor – from the CPR underpass to 17th Avenue. The improvements are intended to create a safer, more comfortable and inviting environment for the thousands of pedestrians and transit riders that travel along this corridor each day.

Project summary/background

This project supports the fundamental principles of Calgary’s Centre City Plan, which places a higher priority on pedestrian and transit mobility, emphasizes the creation of great streets and places for people, and aims to build liveable, inclusive and connected neighbourhoods.

In 2003, The City implemented the first phase of public realm and streetscape improvements along 1 Street S.W. between 12 and 14 Avenues, with the intent of supporting the revitalization of the area. Since that time, significant private investment has been made in this area through residential and non-residential developments.

In 2016, The City completed the second phase of improvements to the 1 Street S.W. corridor through work on the 1 Street S.W. CPR underpass enhancement project, which was designed to benefit the nearly 10,000 pedestrians who travel though the underpass each day.

This project implements the final phase of improvements to the corridor by extending the streetscape character first established in 2003 along the full length of the corridor. It is anticipated that The City’s investment along this corridor will help with the continued revitalization of the neighbourbood by attracting private developments, new businesses and more residents to the area.


 1 St SW Corridor Improvements


Photo Gallery - Unclassified

Project timeline

  • April 2017: Construction begins
  • Fall 2017: Anticipated completion

Project budget

$6.2 million

Public engagement/communications

The City is committed to providing information to stakeholders along the corridor, and working with businesses and property owners to deal with construction issues related to access, traffic flow, lane and parking restrictions.

In June 2016 a public information session was held about the project at Hotel Arts.

Join our mailing list to receive updates about the project. If you have questions or require more information, please fill out the 311 online form.


Closures and restrictions to the pedestrian walkways and 1 Street roadway will occur as needed to complete this project.

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