The prevailing wage is one of the worst things in existence.
I have done a lot of construction projects where it is required. When I do a job in Minneapolis the LOWEST paid grunt/ laborer gets paid 49.55/hour. That’s 2 grand a week for a broom pusher.
I lied. The rate is now $51.80 per hour.
http://workplace.doli.state.mn.us/prevwage/commercial_data.php?county=27
All they have to do is stay out of the weed.
And they can’t do it.