This Video by 'ReasonTV' claims that the Pacific Rail Acts of 1862 subsidized railway construction based on distance, therefore causing rail lines to be unnecessarily extended to gain federal subsidies.
To quote: citation needed
"While Congress has never been great at keeping an eye on spending, it's even worse at it during a Civil War. With no one looking, the Union Pacific unnecessarily lengthened the route, adding miles of track and pocketing almost half a million dollars."
Is there any evidence to support this particular incident? Additionally, is there much evidence to suggest that this happened on a large scale? Did this subsidy cause companies to intentionally build inefficient and indirect land just to seize up more subsidies and land grants?