The 2016 Local Options Map is now available at https://datcpgis.wi.gov/IoH/. By zooming in, you can acquire road-level data.
The latest IoH legislation is 2015 Act 232, effective March 3, 2016. The permit application has been updated on the WisDOT website at http://wisconsindot.gov/Pages/dmv/agri-eq-veh/default.aspx.