Section 84.106 - Scenic byways program(1g) DEFINITIONS. In this section:(a) "Connecting highway" has the meaning given in s. 340.01(9).(b) "Highway" has the meaning given in s. 340.01(22).(c) "Local highways" has the meaning given in s. 86.31(1) (c) for "local roads."(d) "State trunk highway" has the meaning given in s. 340.01(60).(1m) DESIGNATION. The department shall develop, implement, and administer a program to designate highways or portions of highways in this state, including, notwithstanding sub. (2), state trunk highways, connecting highways, and local highways, that have outstanding scenic, historic, cultural, natural, recreational, or archaeological qualities as scenic byways. The department may seek designation by the federal government of a highway designated as a scenic byway under this section as a national scenic byway or as an All-American Road.(2) RULES. The department shall promulgate rules under this section consistent with 23 USC 162 and regulations established under that section.(3) MARKING HIGHWAYS. Highways designated as scenic byways under this section may be marked with signs conforming with the manual of uniform traffic control devices adopted by the department under s. 84.02(4) (e) that identify the highway as a scenic byway. The department shall have exclusive authority to erect these signs, and shall bear all expense in connection with the erection and maintenance of the signs, on state trunk highways. The local authority with jurisdiction over the highway, for maintenance purposes, shall have exclusive authority to erect these signs, and shall bear all expense in connection with the erection and maintenance of the signs, on local highways and connecting highways.