A breast derrick does not have a boom. The mast consists of two side members spread farther apart at the base than at the top and tied together at top and bottom by rigid members. The load is raised and lowered by ropes through a sheave or block secured to the top crosspiece.
Tucson, AZ average salary is $64,225, median salary is $52,062 with a salary range from $20,194 to $1,686,750. Tucson, AZ salaries are collected from government agencies and companies. Each salary is associated with a real job position.
In 2015 median household income was $46,162 for the Tucson Metropolitan Statistical Area (MSA), 14.3% lower than the nation and 8.1% below the state of Arizona. When compared to the 12 western MSAs, Tucson ranked near the bottom, above only El Paso, which had a median household income of $41,578.