When you have unionized workers, overtime enters the equation, usually after eight hours of work, and that raises costs. A non-unionized worker will be more flexible in that regard.
In addition, unionized workers are separated by class. The carpenter has to do his job, the labourer has to do his job, the painter has to do his job, and so forth. As Walter explained earlier, a non-unionized worker could use a hammer or paint brush during the construction project. In fact, that happens when bridges are built. A unionized stripping shovel operator isn't allowed to pick up a shovel to clean his bucket, but a non-unionized shop would allow him to do that.
A non-unionized worker can choose to work 10 hours a day, and it doesn't necessarily have to mean overtime. He can make that choice. So there's a pretty significant cost attached to that.
Then you have the benefits. Benefits represent about $2 an hour that you have to pay the union. If the total approximate number of hours to be worked on the bridge, be it in Windsor or Montreal, is 10,000, there's a hefty price tag attached to that.
That's the information I am going by.