The department is authorized to enter into agreements (and such supplementary agreements as may be necessary) consistent with this chapter, with the secretary of commerce or the secretary of transportation authorized under Section 131(b) of Title 23, United States Code, as codified and enacted by Public Law 85-767 and amended only by section 106, Public Law 86-342, in order that the state may become eligible for increased federal aid as provided for in Section 131 of Title 23, United States Code, as codified and enacted by Public Law 85-767 and amended only by section 106, Public Law 86-342.