No wonder gas has gotten so expensive. $55 an hour to drive a dump truck?
Don't forget to factor in overtime. And it's a horribly boring, but well paying job so workers will do it for a short amount of time and then quit, adding the cost of training new drivers every 6 months.
Autonomous haulage truck systems are starting to show up in new mines though, so it wont be like this forever. These trucks are claimed to be more fuel efficient, create less tire wear, last longer, and be faster than the manned trucks too.
It's a little spooky to know those things can drive better without someone inside though. I start to imagine I-robot with a bunch of massive dump trucks…