I've noticed over the past month that not only is there not many individual construction workers onsite at any given point in time, but there really isn't very much heavy equipment onsite considering the scale of the project.
The heavy equipment that is onsite definitely isn't the Euclid (now Hitachi) variety of massive dam building equipment you normally see when there's this much earthmoving taking place, rather it's just run of the mill construction equipment. (think Fort McMurry for the appropriately sized equipment).
There's really no reason other than the contractor trying to make a buck that there isn't 4 or 5 times the manpower and equipment inventory onsite each and every workday.
With the will, this project could easily be wrapped up in half the time (or less) than we're being told it will be wrapped up in.