(a) The Administration shall pay the costs of relocation to any public or private utility whose facilities are altered or relocated because of a railroad grade crossing or railroad grade separation project. The plans for the alteration or relocation shall be approved by the utility.
(b) If the owner of land adjacent to any State highway suffers damages as the result of the elimination of a railroad grade crossing or railroad grade separation from that highway, the owner may sue the Administration and the railroad for these damages.