Well that would be one way to get around the sequestration; and leave all the Public-Private Partnerships off-budget in the future because they would use Accrual rather than the usual government Modified Accrual and would collect tolls/fees rather than taxes...
Here's a perhaps relevant section of USC which identifies the authorized Federal participation in roads/bridges, etc which might be helpful in trying to figure out what these guys have up their sleeves:
23 U.S. Code § 129 - Toll roads, bridges, tunnels, and ferries
(2)Ownership.—Each highway, bridge, tunnel, or approach to the highway, bridge, or tunnel constructed under this subsection shall—
(A) be publicly owned; or
(B) be privately owned if the public authority with jurisdiction over the highway, bridge, tunnel, or approach has entered into a contract with 1 or more private persons to design, finance, construct, and operate the facility and the public authority will be responsible for complying with all applicable requirements of this title with respect to the facility.
#Trump may become the first president in modern history not to submit a budget in order to defer popular criticism. https://t.co/YDqVkgYv07— Dario Navarro (@darionavarro111) December 4, 2016