West Light Rail Transit Fixed Facilities

Owner:

City of Calgary and Calgary Transit

Sector:

CANA Construction

Completion:

2012

Architect:

Gibbs Gage Architects

Delivery Type:

Design-Build

Market:

Infrastructure

Awards:

Design-Build Project of the Year (2013); Consulting Engineers of Alberta Awards of Excellence (2013)

Project
Details

The first design-build LRT project in Calgary

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CANA completed the West LRT Fixed Facilities project under a Joint Venture Design-Build partnership with SNC Lavalin. In order to support the growing demands for public transportation infrastructure in Calgary, the contract was comprised of six new stations, nine traction power substations, two utility buildings and a Transit Oriented Development Office at Westbrook Station on the West LRT line.

The West LRT was the first Design-Build LRT project in Calgary, making it truly unique to the city. In addition to the delivery method, the project also provided the city with its first underground and elevated train stations.

CANA worked through design review and value engineering and engaged design-assist subcontractors to assist with the pre-planning. CANA executed construction, working collaboratively with other general contractors on site (completing the traction power and LRT line) to ensure safety and schedule.

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Innovative construction techniques that were utilized included the specialty design and construction of structural steel sand jacks that were used to support pre-tensioned girders during concrete pouring. This innovative approach was taken in lieu of conventional jacking systems which have limited loading capabilities. This system was utilized in the installation of 25m custom made steel beams with nelson studs and dywidag’s that were tensioned once placed onsite by a 500 ton mobile crane. This assembly was then encased in an 1100mm x 1550mm transfer girder. Once sufficient concrete strength was achieved, the sand was slowly released from the jacks allowing them to lower in a controlled and safe manner to be removed.

The West LRT is instrumental in expanding LRT services for Calgary and serves over 100,000 Calgarians.

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