The following sections of public roads shall be adopted by the Commonwealth as a State highway and shall be maintained and constructed at the expense of the Commonwealth upon the terms and conditions and subject to the limitations and conditions provided in present or future laws governing State highways:
Beginning at a point on Route 59038 in the village of West Milton, Kelly Township, Union County, thence in an easterly direction across the West Milton and Milton Bridge to a point on Route 18 at the intersection of Mahoning and South Front Streets in the Borough of Milton, Northumberland County, a distance of approximately one-half mile.
36 P.S. § 1742.3