human
And the structure itself--how high is it to be?
gpt
Two hundred feet above the spillway apron foot.
human
That will be a whale of a chunk of masonry, he said. Then, with business-like directness:
gpt
What will you build it of?--concrete?
human
Yes; concrete and steel.
gpt
Then you are going to need Portland cement--a whole world of it. Where will you get it? And how will you get it here?