Crowchild Trail Corridor?-?Calgary, Alberta
The 31.5-kilometer-long Crowchild Trail Corridor carries 60,000 vehicles per day and connects downtown with northwestern Calgary. Kiewit completed this $59 million contract for Calgary's first design-build project, which included widening a 4.2-kilometre-long corridor section from two to three lanes in each direction; constructing three interchanges; upgrading the utility infrastructure; erecting sound and retaining walls; and preparing a 2.9-kilometre section for a future light rail extension.
Partnering with key stakeholders allowed the team to develop an extensive maintenance of traffic plan as part of the preliminary design resulting in 650 traffic rearrangement plans and five separate detours, allowing crews ample room to work without causing major traffic delays.
After completing drainage and utility upgrades, work began on three major interchanges, which included a total of seven overpass and underpass structures. Paving operations included more than 200,000 tonnes of base and sub-base; more than 8,000 square metres of foam insulation; 45,000 tonnes of asphalt; and 12 kilometres of curb and gutter. Crews constructed 1,400 square metres of sound attenuation walls and placed more than 1,900 cubic metres of concrete on 23 separate retaining walls. This award-winning project was completed without a recordable accident.