RE:RE:RE:Site C Dam I was in Calgary years back when they poured the Calgary Tower. Cement trucks were hauling 24/7 as they needed a continous pour. I would guess a dam would be the same. If so then they will need a lot of aggregates and sand. They would want all that at the site and that my friends would be a huge job. Aggregates from everywhere. My understanding is that Swamp Point sand is pretty good grade and our aggregates are not that shabby. Go get em HBK..