article with embedded drone video of MS and secant wall.
“Roller-compacted concrete is only going into the middle chute areas where there are extremely large holes because it is the quickest and most affordable method”
That video is from June 27th.
From time 2:45 - 3:00 ... why don’t the two ends of the “cut-off-wall” line up?
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Here is the July 11th drone video:
https://www.youtube.com/watch?v=JfzseIrY0D4