It might just be me, but the wakes from the bridge pillars seem to run completely parallel to the pillars, even though the river itself bends right after. Shouldn't the wakes follow the path or get dissipated by the changing current? Another thing that is missing if it's appropriate is that water flows back together after going around an obstruction, creating eddies or whirls. While those might not be visible on this scale (especially if the current isn't running very fast), the wakes don't appear to make any move toward rejoining after the pillars.

But I'm definitely no water expert. This is merely stuff I've seen in a much smaller scale long ago.