Skip to main content

The City will be conducting geotechnical field investigation work (drilling) on Centre Street in 2017. The field investigation will involve drilling into the ground at specific locations along the future Green Line route to obtain subsurface information and extract soil samples. The different drill rigs will produce various noise levels and possible minor vibrations.

During construction there could be sidewalk closures, lane closures and temporary bus stops to accommodate equipment

The boreholes will be drilled on City of Calgary property and City road right-of-way, not on private property. Drilling in each location will be completed over a number of days but drilling activity should not exceed 12 hours each day. The City will take measures to ensure impacts to surrounding areas are minimized as much as possible and returned to their original state.

For more information about the geotechnical work, please call 311 or email

About the Green Line 

The Green Line will be a 46 kilometre long transit line, extending from Seton in the southeast to the new community of Keystone in the north. Once constructed, it will nearly double the size of Calgary’s current LRT network.

The Green Line will not only move people from point A to point B – it will create liveable and vibrant communities where people can live, work and play in close proximity to public transit. Green Line stations will be built for low-floor trains, meaning they will be small in scale and seamlessly integrated into communities with strong walking and cycling connections to and from each station. Thank you for your patience while we undertake this technical work.

For more information about the Green Line project, please visit Follow the Green Line story on Twitter @yyctransport #GreenlineYYC.



Sean Chu

Sean Chu

Sean Chu arrived in Calgary from Taiwan in 1985 speaking not a word of English, and within 7 years he was a sworn officer with the Calgary Police Service. From that point on Sean worked with the Calgary Police Service as on Officer for 21 years in a number of roles until 2013.

Leave a Reply

© 2021 Sean Chu. All Rights Reserved.