Originally Posted by colemonkee
I'm pretty sure the crane was erected that high to give it clearance over the neighboring towers. The boom would clearly reach the pinkish and brown towers in that last shot. Putting it over those structures gives it full rotational range without having to rent a luffing style crane.
Correct. Not only that, but this is the highest the crane will have to go. Might as well put it at max height for a tower like this so you don't have to spend extra money/man-power, etc. to jump the crane.
1601 Vine crane is nowhere near it's highest height since the building is still in the ground. Once the tower starts to go up, they'll have to jump the crane.