In 2016, WIS 123 was decommissioned and the section between WIS 159 and the Devil's Lake State Park entrance would become part of WIS 159. In 2017, it (along with the part of US 12 between it and WIS 136) was redesignated as part of WIS 136 after US 12 was bypassed near Baraboo.
In 2016, WIS 123 was decommissioned, and the stretch between WIS 159 and Devil's Lake State Park entrance became part of WIS 159. In 2017, this section along with a portion of US 12 between it and WIS 136 was re-designated as part of WIS 136 after US 12 was rerouted near Baraboo.