Project Update

May 15, 2023

What’s Happening in Traffic

REMINDER: Temporary traffic signals at Old Banff Coach Road and 101 Street S.W. intersection

The Old Banff Coach Road and 101 Street S.W. intersection is operating as a single lane of alternating traffic with temporary traffic signals. The paving and concrete work on the east side of the intersection is anticipated to last two weeks.

Please expect delays.

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.

“Ground Truthing” Your Navigation System

Our contractors are reporting numerous incidents of drivers and other members of the public entering the construction site. Unauthorized entry into active construction sites by members of the public not only puts those working on site at risk, but members of the public as well.

GPS systems can be helpful tools, but the technology isn’t perfect and can misinterpret data, and is often unable to reflect traffic changes resulting from road construction. Please be mindful of, and obey onsite signage in addition to following GPS directions so that we can all go home safe.

North Project Reaches Major Milestone

Last week the primary paving work on the Trans-Canada Highway as part of the North Project was completed. Additional works in this area will be ongoing in the coming weeks.

Trespassing and Vandalism

Our contractors have also reported an increase in trespassing on site after hours and several instances of vandalism and destruction of property.

Should you notice any activity on, or near the site that you think could be suspicious and would like to report it, please call the Calgary Police Service non-emergency line (403.266.1234) and share your observations.

Mainline Stoney Trail Progress

This spring, earthwork and road construction has been ongoing on northbound and southbound Stoney Trail.

Paving on the Stoney Trail Interchange

Asphalt is a mixture of aggregates (gravel), binder (cement and bitumen) and filler (often fly ash). To make the Hot Mix Asphalt (HMA) often used for roads, these components are heated to ~150 degrees Celsius so the binder is fluid enough to coat the gravel (aggregate) surfaces and the aggregate spreads evenly through the mixture.

The HMA is made at an asphalt plant and transported by truck to the paving site (the HMA must stay warm enough to be spreadable so the distance it can be transported is limited). The HMA is unloaded from the trucks into hoppers on the front of the paving machines, which spread the asphalt as they move forward.

Once the asphalt arrives on site the paving operation must proceed quickly to prevent the asphalt from cooling too much. Paving crews often have up to 10 people to successfully place a lift of HMA – paving machine operators, roller operators, skid steer operators, compaction testers, and labourers to rake and spread the asphalt.