Project Update – January 11, 2021

What’s Happening in Traffic This Week

Next week, single lane alternating traffic will be back in effect along Crestmont Boulevard S.W. for utility work. The closure is anticipated to be in place for approximately three weeks, but as the work is being undertaken by a third-party there may be unanticipated changes. Old Banff Coach Road S.W. is an alternative route if you want to avoid this lane closure.

All work is weather dependent. Please check 511 Alberta and The City of Calgary’s traffic information map for up-to-date information on traffic detours and speed reductions. For all other project information, please visit

We appreciate your patience during construction.

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Traffic Shifted to Trans-Canada Highway Detour

Just before Christmas, eastbound Trans-Canada Highway traffic was shifted onto the detour at Valley Ridge Boulevard N.W. This is a significant milestone for the project that involved completing two permanent bridges, one temporary assembled-in-place bridge and almost three kilometres of new road. 

Bridge Diaphragms – Solidifying Connections

The girder ends are surrounded by abutment diaphragm rebar, which will eventually be filled with concrete tying the girders to the abutment

The centre pier diaphragm connects the two girder spans to each other and to the centre pier 

Girders Installed on Stoney Trail Bridge Over Trans-Canada Highway

Last week the Trans-Canada Highway was reduced to one lane each night to lift and place girders for the southbound Stoney Trail bridge. In all, there are 18 girders. Each girder is approximately 52 metres long and weighs approximately 225,500 pounds. 

The ‘Quad’

Construction on these four mainline Stoney Trail bridges continues.

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Intersection Safety

About 25 per cent of collisions in Alberta are intersection related. On average, 66 people are killed and over 8,000 are injured each year in collisions at intersections. That makes your daily commute a high-risk endeavour!

Since the vast majority (84%) of all collisions in Alberta involve driver error, it’s worthwhile to use extra caution when travelling through intersections. Improper left turns, stop sign violations and disobeying traffic signals are three of the top five causes of casualty collisions (collisions resulting in injury or fatality). These collisions caused by driver error are preventable. Please pay attention to your speed and consciously look at your surroundings as you approach intersections.