Update: We've heard some chatter from the #SiteC dam site that the machine that can be seen drilling into the concrete buttress on the #Site C dam's south bank is a piezometer or similar, and it's draining water that is building up in the shale behind the buttress. This means...
..our engineer advisors were right: the #SiteC buttress resting against the shale bank is filling with water, & they're drilling to relieve water pressure from behind the buttress.
Obviously the S. bank drainage tunnel added in the 2009 redesign isn’t working as planned..
..What we're hearing is that Hydro is "astounded" by how much water is coming out of the wall at the east end of the dam spillway on #SiteC's south bank. I'm not. Remember my engineer friend pointing out fissures & visible ice falls in that same spot, in official photos? #bcpoli
It's all very well for BC Hydro to be releasing water pressure from behind this buttress, whose foundation BC Hydro admits is unstable, but what happens when a deep water channel is dug out behind that buttress for turbine water intakes? Imagine the force of water pressure then.
Nothing at #SiteC is affixed to solid, immoveable rock, because zero of that exists at this site. Structures can move due to water pressure +/or compression of the old compacted mud the dam is sitting on, & settling... Gossip from the site is that "there are cracks everywhere."
..ICYMI, here's a previous thread, assembled with the help of an engineer, to explain the very #Site C problems we're hearing tales of today. Engineer turns out to be prescient yet again.
They're effectively trepanning #SiteC now, as if it has water on the brain.
Through binoculars people can see the machine they're using to drill through & release water pressure from behind the #SiteC buttress, but maybe someone should shoot it with a long lens for us?
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