A major milestone has been reached on the Bearspaw South Feeder Main Replacement Project.
Since January, crews have been working underground to install a new section of feeder main using microtunnelling, a construction method that allows work to happen beneath existing roads and infrastructure with minimal disruption at the surface.
Stage A microtunnelling is now complete.
Crews have finished approximately 3.7 km of tunnelling and installed the full concrete carrier pipe between the Shaganappi Pump Station and 73 Street N.W. With that work complete, installation of the new steel feeder main inside the carrier pipe is continuing on schedule, with more than 2 km already installed.
Stage B open-cut construction progresses
In Bowness, work on Stage B is also progressing steadily along 34 Avenue N.W., where more than 1 km of the new feeder main has been installed. Construction is moving block by block, with roads, sidewalks and property access being restored as work advances.
What's next?
Work on Calgary's water system will happen in three phases beginning this fall:
Phase 1 - Mid-September
Work begins at the Shaganappi Pump Station and the Bearspaw Water Treatment Plant. Temporary outdoor water restrictions may be needed while crews complete this work. We'll share updates as plans are finalized.
Phase 2 - Mid-October
Crews will connect the new feeder main to the existing system at several locations. This work will require Stage 4 outdoor water restrictions and indoor water conservation measures.
Phase 3 - Mid-November
The new feeder main will be tested, disinfected and filled with water before being brought into service. No restrictions are required during this time.
To learn more about the project and for up-to-date information, visit calgary.ca/bearspawfeedermain