Interestingly, the reverse may be happening in one case.
IIRC, the State of New Jersey may be taking over the Beesley's Point Bridge, a privately-owned toll bridge that carries U.S. 9, because the private owner cannot afford (?) to make the needed repairs to the bridge to keep it open.
The bridge has been closed awhile, with traffic having to use the G.S. Parkway to get around.
Feel free to enlighten me differently if my account is not correct.