Yeah, like Mitch McConnell and his bridge. It does happen.
But, it's pretty hard to argue that the federal government should ignore the need for infrastructure that is important to the success of US businesses.
We do have the power to make things happen that otherwise simply would not happen - and thus make American business stronger.
McConnell's dam. Pay attention.
As for CA's toy train, one word for you: Amtrak. Two more words: Money pit.
Amtrak: 40 Years, $40 Billion | National Review Online
When Congress created it in 1970, Amtrak was intended to be a profitable enterprise; instead, it has cost taxpayers a total of $40 billion. According to a 2009 study by the Pew Charitable Trust, 41 of AmtrakÂ’s 44 lines lost money in 2008. Per-passenger losses ranged from $5 per passenger on the Northeast Regional to $462 on the Sunset Limited line, which runs all the way from New Orleans to Los Angeles. According to the Amtrak inspector generalÂ’s September 2010 semiannual report, the rail service covered only about 84 percent of its operating costs in fiscal year 2010.
There is no sane reason to expect a high-speed rail line serving only one state to turn a profit.