Rehab in the Remote North

Innovative manhole rehabilitation technique reduces inflow and infiltration and proves value in extreme conditions

Rehab in the Remote North

The Permacast system uses a bidirectional spin-caster that is lowered into the manhole and withdrawn vertically, so crews are usually able to avoid confined-space entry. The bidirectional motion eliminates concrete shadows caused by uneven bricks or other protrusions.

Carmacks is a remote village in the Yukon with a population of just 503. Infrastructure is relatively undeveloped, and repairs and rehabilitation present special challenges.

“Basically, the sewer system is the only infrastructure — even water is trucked in,” says Darrell Peters, project facilitator at Yukon Engineering Services.

As part of a review funded by the government of Yukon, Peters identified six manhole barrels that were leaking badly and overwhelming the...

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