Originally Posted by cj2112

Ok so you open it to competitive bidding, so now you've got to spell out precisely what work is the bidders responsibility, which with projects such as these it's nigh impossible to know what you'll find. You also will end up with several delays to the project because of negotiating change orders, forced accounts, etc. I can think of three likely companies that would bid on the job, Kellog Brown and Root, Bechtel, and Shaw. These are companies that are of the size necessary and have demonstrated the ability to do this scale of work. Your talking about building an entire cities infrastructure here, not remodeling a bathroom, there simply isn't a large number of construction companies capable of taking on a project of this scale.