The guys who run these things earn well over $135 an hour...
...and half again more for overtime, because they shoulder immense responsibility.
They swing unwieldy and insanely heavy loads up over our heads and we hardly even notice until one comes down.
When the extended boom begins to rock under load, bad things can happen.
After leveling, this one will lift 352,700 pounds (you read that right) high over busy city streets.
See how far off the asphalt the tires are?
Wind is the enemy and stability the name of the game.
Weightplates up to 102,500 pounds are added as ballast to subdue the rocking.
And chocks can be placed under wheels so it cannot roll away.