Seems to have merit.
But...the environmental impact studies, the feasibility studies, the bonds structure meetings, the financing committee decision processes...would take 254 years to complete.
AND, it would never get done because of "budget overruns" due to all the graft and corruption that would be rampant.
As a far simpler example...do a search on "Big Dig" aka Ted Williams Tunnel Project.
Think the Boston"Big Dig" on steroids.