he Union Coun­ty Board of Com­mis­sion­ers is autho­rized to enter into agree­ments with the des­ig­nat­ed author­i­ty of the Unit­ed States Gov­ern­ment relat­ing to the con­trol of junk yads or scrap pro­cess­ing facil­i­ty in areas adja­cent to the pub­lic roads, and to take such action as may be nec­es­sary to com­ply with the terms of such agreements.