Tension crack appears at Site C worksite

A 400-metre long tension crack has appeared on a slope near a road construction site as part of the Site C Clean Energy Project.

According to a BC Hydro information bulletin regarding the appearance of the crack:

“Tension cracks are not unexpected in this area; however, this particular crack requires attention due to its significant 400-metre length.

BC Hydro and its contractor have installed instruments to measure and monitor stability around the tension crack.

The project’s independent engineer and technical experts in slope stability are assessing the tension crack. While this assessment is underway, 30 road construction workers have been reassigned to other work. There are more than 1,500 workers in total on the construction site.

While there was some initial movement of soil, it has now stabilized. This area of unstable soil was already slated to be removed as part of engineering new stable banks for dam construction. BC Hydro’s next step is to determine how to continue soil removal, which will need to be undertaken carefully to maintain the stability of the slope.”

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