Upon written request of any owner of more than five head of cattle, the Department of Transportation shall erect appropriate and adequate signs on any road or highway under the control of the Department of Transportation, such signs to be so worded, designed and located as to give adequate warning of the presence and crossing of cattle. Such signs shall be located at points agreed upon by the owner and the Department of Transportation at points selected to give reasonable warning of places customarily or frequently used by the cattle of said owner to cross said road or highway, and no one owner shall be entitled to demand the placing of signs at more than one point on a single or abutting tracts of land. (1949, c. 812; 1957, c. 65, s. 11; 1973, c. 507, s. 5; 1977, c. 464, s. 7.1.)