The light from your computer screen is a bit strange. And it's not just because of the websites you visit. If you have a computer with a flat screen liquid crystal display, turn it on. Open your word processor to display the writer's block screen (pure white).
Crane operators employed primarily in nonresidential building construction made somewhat less, an average of $53,070 a year. Those who worked in mining averaged $47,010 per year, and those employed by iron and steel mills made an average of $45,710 per year.
The median annual wage for construction equipment operators was $45,040 in May 2016. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $29,030, and the highest 10 percent earned more than $79,700.