A. The Board may transfer such highways, bridges, and streets as it deems proper from the primary state highway system to the secondary state highway system or, if requested by the local governing body, to the local system of roads operated by a locality receiving payments pursuant to § 33.2-319 or 33.2-366. Upon such transfer, the highways, bridges, and streets so transferred shall become for all purposes parts of the secondary state highway system or the local system of roads operated by a locality receiving payments pursuant to § 33.2-319 or 33.2-366. The total mileage of such highways, bridges, and streets so transferred by the Board shall not exceed 150 miles during any one year.
B. When the Chief Engineer of the Department recommends that it is appropriate in connection with the completion of a construction or maintenance project to transfer highways, bridges, and streets from the primary state highway system to the secondary state highway system, the Commissioner of Highways may transfer such highways, bridges, and streets as he deems proper. Upon such transfer, the highways, bridges, and streets so transferred shall become for all purposes parts of the secondary state highway system and cease being parts of the primary state highway system.