If you need more $ for infrastructure, cut waste across the fed. gov.!  But as to the math...  If a project is NOT a good investment, and does not attract private capital to build and operate it, then it is still NOT a good project, with public $$.  One would think this would be obvious, but JT is JT.  One reality in public procurement is that contractors know that the public is the final payor, so delays and cost overruns are very common and very large (see defense spending!!).  Injecting a profit motive, therefore, CAN in principle force efficiency, as a build/operate firm has real incentives to control costs.  Against that there is the fact they expect to make a decent return, much more than the % cost of debt to the government.  But even if you like some private involvement, you don't need this bank - just let private capital build Edm/Cal if it pays, if not, too bad!  This is just a badly disguised subsidy scheme, to get $ into dumb showcase projects, or the friends of Junior.