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Stoney CNG Bus Storage and Transit Facility

Project update

From the Request for Qualification (RFQ) 14-047, three respondent teams have been selected as the prequalified parties and have been invited to bid on the subsequent Request for Proposal (RFP):

EllisDon Infrastructure

EllisDon Capital Inc.
GEC / Strasman Architects / Morrison Hershfield
EllisDon Construction Services Inc.
Cofely Services Inc.

Plenary Infrastructure

Plenary Group (Canada) Ltd. 
AECOM Canada Ltd.
PCL Construction Management Inc.
Johnson Controls Inc.

Stoney Transit Partners

Graham Capital Partners LP and DIF Infra 4 Canada Limited 
Kasian Architecture Interior Design and Planning Ltd. and Maintenance Design Group, LLC
Graham Design Builders LP
Black and McDonald Limited

The RFP document will be released to these prequalified parties only. At the conclusion of the RFP process (currently scheduled for Spring of 2016), the name of the Successful Proponent team will be posted to MERX, the Alberta Purchasing Connection (APC), and on this project website.

Project background

In 2011 Calgary Transit was directed by City Council to consider incorporating CNG vehicles into the regular transit bus fleet on the basis of operational cost savings and environmental benefits. In March 2013, Calgary Transit launched a pilot project incorporating four CNG vehicles into the transit bus fleet.

The City has recognized that a new transit bus storage and maintenance facility is required to meet operational needs and growth as the bus fleet expands and was included in the recommended list of projects in the Investing in Mobility capital plan adopted by Council in December 2012.

This CNG Bus Storage and Transit Facility initiative responds to the following pressures on Calgary Transit’s bus storage and maintenance capacity:

  • An existing shortfall of approximately 185 units of indoor transit bus storage capacity;
  • Growth in transit bus maintenance demands;
  • A projected 100% growth in the size of Calgary Transit’s bus fleet in the next 30 years, from approximately 1,000 buses to 2,000+ buses; and
  • A critical requirement for CNG infrastructure required to store, fuel, and maintain CNG buses in larger numbers beyond the initial pilot fleet (CNG fuelled buses are not compatible with current facilities).

Calgary Transit has determined that it would be best to:

  • Expand the capacity of the existing Spring Gardens Garage by approximately 100 buses; and
  • Construct a new bus facility with a minimum capacity of 400 buses.

On July 30, 2014, The City of Calgary hosted the announcement of a funding agreement between The City and the Federal Government, through PPP Canada, of a federal investment of $48.4 million towards the construction of the Stoney Compressed Natural Gas (CNG) Bus Storage and Transit Facility.


  • Video of announcement of funding agreement between The City of Calgary and the Federal Government – edited version 3:23
  • Video of announcement of funding agreement between The City of Calgary and the Federal Government – full version 22 minutes


Project scope

The new facility will provide storage and maintenance space for Transit’s new fleet of CNG buses as well as diesel buses that are currently stored outside the City’s other bus garages. A suitable location has been identified for a new facility in the Stoney industrial area in north-central Calgary. The new facility will be capable of housing approximately 400 buses, 40 maintenance bays, two steam bays, and on-site compressed natural gas fuelling infrastructure. The facility will also support diesel bus operations, recognizing the transition period needed to introduce CNG buses into Transit’s fleet.

A private sector partner will be competitively selected to design, build, finance and maintain (DBFM) the new facility. City staff will continue to service and maintain the buses.

The City has procured the services of the following consultants to assist in the developments of the necessary documents for the project:

  • Bridging Architects: IBI Group (Canada) Inc. (and sub-consultants Turner and Townsend, P1-Consulting Inc. and Change Energy)
  • Legal Advisors: Torys LLP
  • Financial Advisors: Deloitte LLP
  • Fairness Advisors: Knowles Canada

Project budget 

Estimated capital costs - $200 million 

 The Federal Government, through PPP Canada, has committed to an investment of up to $48.4 million towards the construction of this facility.

Project timeline

  • Late 2014 – Request for Qualifications (RFQ)
  • Summer 2015 – Request for Proposal (RFP)
  • Summer 2016 – construction begins
  • Late 2018 – anticipated completion

More information

Transportation Infrastructure will keep citizens informed about this project, and details will be updated on this site on an ongoing basis. For more information, please fill out the online form.

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