(Submitted by Avant-Garde Engineering (1994) Inc.)

In 1994, Hydro-Quebec decided to dismantle two steel pylons running and  supporting a 450 kV tension line over the St-Lawrence River.

The challenge concerned particularly the dismantling of a 142 meters (465') pylon located on a 75 x 50 meters man-made island in the middle of the  river.

To achieve this challenge, the sub-contractor, DEMEX Inc. from Chicoutimi, Quebec, used the Hydro-Mobile scaffolding system. Two platform units, combined with a telescopic crane and ladders, were then ascended to windswept heights.

Respecting the schedule, 314 metric tons of steel were dismantled.

For questions or comments, please contact Scaffold Training Institute at jpalmer@scaffoldtraining.com

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