Va. Code § 33.2-919
If a petition for a public hearing is not filed as provided in § 33.2-918, or if after a public hearing is held the governing body is satisfied that no public necessity exists for the continuance of the section of road as a public road or the railroad crossing as a public railroad crossing or that the welfare of the public would be served best by abandoning the section of road or the railroad crossing as a public road or public railroad crossing, the governing body shall (i) within four months of the 30-day period during which notice was posted where no petition for a public hearing was filed or (ii) within four months after the public hearing adopt an ordinance or resolution abandoning the section of road as a public road or the railroad crossing as a public railroad crossing, and with that ordinance or resolution the section of road shall cease to be a public road. If the governing body is not so satisfied, it shall dismiss the application within the applicable four months provided in this section.
Va. Code § 33.2-919