perhaps you can pour sections and truck those in, but there's no way in hell you're moving a precast that size on anything that doesn't float.

For scale, you know those 4' by 4' by 8' blocks of cement you see all over the place, used for erosion control and the like? They're called ecology blocks, they're about $20 each FOB the cement plant. You want them shipped? A lowboy can carry two or four at a time without exceeding load limits. When I looked into buying a couple hundred, having them shipped about sixteen miles, it was going to cost hundreds per block to truck it out plus renting a crane to unload/place them.

Those are tiny blocks with almost no rebar, no engineering, no preload, nothing.