(a) The route along U.S. Highway 65 South from Pine Bluff, Arkansas, to the border between Arkansas and Louisiana is designated the "Delta Rhythm & Bayous Highway".
(b) The Arkansas Department of Transportation shall erect appropriate signs along U.S. Highway 65 South from Pine Bluff, Arkansas, to the border between Arkansas and Louisiana designating the route as the "Delta Rhythm & Bayous Highway", including without limitation a sign in or near each of the following cities:
(1) Dermott;
(2) Dumas;
(3) Gould;
(4) Lake Village;
(5) Pine Bluff; and
(6) Tillar.
(c) If the Arkansas Department of Transportation does not have the funds available to erect the signs required under subsection (b) of this section, the Arkansas Department of Transportation may accept and use gifts, grants, and donations received from private, public, and nonprofit sources, including without limitation a city street department or a county road department for:
(1) Acquiring and installing the signs required under subsection (b) of this section; and
(2) Maintaining, replacing, or reconstructing the signs required under subsection (b) of this section.