MMM’s Rotated Ellipse Arch Pedestrian Bridge of the Calgary West LRT Extension project was recently awarded the Association of Consulting Engineering Companies (ACEC) Manitoba’s Award of Merit.
MMM, in a joint venture with SNC-Lavalin, was awarded the contract to design, build, and undertake procurement for this estimated $1.4B project. MMM was responsible for the structural design.
This significant mobility improvement project serves more than 100,000 residents in the west areas of the Calgary. The bridge provides a key link to the City’s nearly 1,000-km pathway and cycling system, and spans all six lanes of Bow Trail – including the new West LRT tracks.
To assist pedestrians, the south arch foundation is located away from the arch foundation near the deck elevation which helped to create an open space below the south spans to improve path user safety and comfort. The client’s request to minimize disruption to vehicular and pedestrian traffic was met through MMM’s innovative bridge rapid replacement method, which positions the bridge in place overnight. A key feature of the bridge, and part of its innovative design, is its resemblance to Calgary’s iconic Chinook Arch that isa recognizable feature of Calgary’s skyline.
The use of the design-build delivery method ensured that the project was delivered on budget, in some cases, exceeding the functional, operational, and aesthetic requirements of the stakeholders involved.
The Award of Merit is part of the ACEC–Manitoba’s annual awards program which highlights consulting engineering talent, expertise, and innovation of ACEC-MB member firms.