36 Pa. Stat. § 2672
Each county and township shall have the right and the power to acquire by gift, purchase or condemnation such easements, right of ways and other rights in real estate as may be necessary for the construction, erection, maintenance and protection from encroachment of such roadside rests. The cost of planning, acquisition, construction and erection of any one rest shall not exceed eight thousand dollars ($8,000). The power of eminent domain for the purpose of condemnation of such easements, right of ways or other rights in real estate shall be exercised in the same manner as is now or may hereafter be provided by law for the condemnation of property in changing the widths, lines and locations of county and township roads. When and if such easements, right of ways and other rights in real estate are acquired, they shall become part of the county or township road system on which they are located or to which they are adjacent.
36 P.S. § 2672