Project Update

September 28, 2022

What’s Happening in Traffic This Week

Traffic Shift to 17 Avenue S.W. Interchange Bridge

This weekend, traffic will be shifted to the new 17 Avenue S.W. road alignment and interchange bridge. Various lane closures will continue until traffic is shifted, but once the new bridge is in use the improved road condition and grades will be noticeable.

September 30: Overnight Closures on Trans-Canada Highway

Starting at 9 p.m. on Friday night (September 30, 2022) and ending at 5 a.m. on Saturday morning (October 1, 2022), there will be intermittent lane closures on the Trans-Canada Highway between Old Banff Coach Road and Valley Ridge Boulevard N.W. for overhead sign installations.

Short traffic stoppages (lasting approximately 10 minutes each) will be required in both directions. Delays are expected. Please use alternate routes.

All work is weather dependant. 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.

The Home Stretch

As the end of the fourth construction season on the North project approaches, much of the new Valley Ridge Boulevard N.W. / Trans-Canada Highway interchange is open. Work on the eastbound and westbound movements connecting to Stoney Trail is progressing quickly.

Eastbound Trans-Canada Highway to Stoney Trail

The first lift of pavement structure – granular base course – is compacted on the subgrade

Looking east at piles of granular base course for the second lift

Looking west as the second lift of granular base course spread and compacted

Stoney Trail to Westbound Trans-Canada Highway

Looking west; the second lift of granular base course is compacted and the overhead sign structure has been installed

Design Build in Action

One of the benefits of a design-build approach to construction is that it allows the contractor to maximize efficiencies by determining the construction staging. As paving crews were mobilized for work on the Old Banff Coach Road and 17 Avenue S.W. interchanges, as well as new carriageways on Highway 8, portions of the Bow Trail S.W. interchange and mainline Stoney Trail were also paved.

Despite the asphalt, construction on the Bow Trail S.W. interchange will continue for some time.   

Some of the Bow Trail S.W. interchange ramps and portions of Stoney Trail have been paved
Looking south at asphalt on Stoney Trail approaching Bow Trail S.W.

17 Avenue S.W. Paving

Concrete work and paving continue along 17 Avenue S.W. to build the road connections to the new interchange.

Looking west at median construction approaching the new bridge