3 ms·I don’t think that math is right. 1 billion cubic yards is like less than 1 cubic km.by minitoar 6y agoI don’t think that math is right. 1 billion cubic yards is like less than 1 cubic km.imesh 6y agoYou are correct. I messed that up bad and forgot how dimensions worked.midasuni 6y agoYet even ignoring those two issues, you included 12 significant figures on a number that was likely 10% off in the first place.