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Calgary Built: The Green Line LRT – Episode 1: ENMAX maintenance hole installation

Have you ever wondered what lies beneath those circular steel plates on our roads?  Maintenance holes (formerly called “manholes”) serve an important purpose in the access, maintenance and upgrade work for various underground utilities.

In order to make way for the Green Line LRT, several utilities are being moved across downtown, including many electrical utilities managed by ENMAX.

To make room for the tunnel along 2nd Street, ENMAX installed a new maintenance hole at 6 Avenue and 2 Street S.W. to reroute existing cables. Check out the first video in our Calgary Built: The Green Line LRT video series, to see what it takes to install a maintenance hole in downtown Calgary.