That's a very low number to assume!
The last time I checked, base compensation for toll takers in New York was well over $120K/year.
In unionized NJ, I am sure compensation is about the same.
On top of $60K year in base pay, you have to consider maybe $50K a year in pension benefits, then maybe $20K a year for health insurance.
And those numbers were from 8 years ago.