Calgary’s Bearspaw South Feedermain is the largest pipe in the city’s water transmission system, capable of conveying over 450 megalitres per day (ML/D) to 90% of Calgary and surrounding area population. On June 5, 2024, there was a catastrophic break of the BSFM that required an immediate shutdown of the feedermain. Losing the BSFM at the beginning of the warmest months of the year meant there would be immediate and significant impacts on the City’s ability to deliver water to Calgarians, local businesses, and regional customers. Associated Engineering was retained by The City of Calgary to provide consulting services to aid in the repair of the original break plus restoration of an additional 29 distressed pipe. This presentation will discuss how the work was completed in three phases with The City’s staff and multiple contractors. Associated’s scope included field locating distressed pipe using City data, gathering in-situ data, producing concrete encasement designs, utility relocation designs and cross-tie designs for connecting the feedermain to the distribution system and construction support.
Bearspaw South Feedermain Repairs – Emergency Response
May 15, 2025 1:00 pm
About the Speaker
Craig Pass, P.L. (Eng.)
Associated Engineering
With 24 years of experience in linear infrastructure, facilities and water management, Craig provides technical expertise rooted in design and construction experience. He was Deputy Project Manager and Field Lead for the Bearspaw South Feedermain Emergency Repairs. He provided constructability advice for all three phases of the repairs and was in the field full-time managing field requests for information, surveys, and geotechnical quality assurance subcontractors. Craig’s technical knowledge and hands-on approach ensured that issues were resolved quickly, and collaboratively.
About the Moderator
Jason Lueke, Ph.D., P.Eng.
National Discipline Leader - Trenchless Technology, Associated Engineering
Jason Lueke is the National Discipline Leader for Trenchless Technologies at Associated Engineering based in their Edmonton office. Prior to re-joining Associated Engineering in 2012, he was an Assistant Professor in the Del E. Webb School of Construction at Arizona State University, an Infrastructure Engineer and Trenchless Discipline Lead for Associated Engineering, and an Assistant Project Manager for a trenchless utility contractor. He has over 24 years of experience in consulting, construction, education, and research focusing specifically on trenchless design and construction. He received his Ph.D. in Civil Engineering, specializing in Construction Engineering and Management, from the University of Alberta in 2005; and is a registered professional engineer in Alberta, Manitoba, Ontario, and British Columbia.
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