60-1-222. Joseph J. Dunn memorial highway. (1) There is established the Joseph J. Dunn memorial highway on the existing Montana interstate 15 between the Ulm interchange and Gore Hill interchange, which is adjacent to the offices of the Cascade County sheriff's department located on Gore Hill in Cascade County.

(2) The department shall design and install appropriate signs marking the location of the Joseph J. Dunn memorial highway.

(3) Maps that identify roadways in Montana must be updated to include the location of the Joseph J. Dunn memorial highway when the department updates and publishes the state maps.