Local Government Information The Marathon County Highway Department interacts with townships, villages, and cities within Marathon County. Below are links to useful information for local government entities to use. Annual Letter from the Commissioner Local Roads Improvement Program (LRIP) Overview of Wisconsin’s Highway Aid Programs WisDOT PDF on Highway Aid Programs (one-page summary) Wisconsin County Highway Association Website Disaster Damage Aids (includes flood damage aids) Bridge/Culvert aid (financial aid for culverts 48″ or larger in diameter and bridges less than 20′ in length) information is located on page four of the annual letter. Culvert replacements for culverts 36″ or larger in diameter require review and/or permission from the Wisconsin DNR. Permit information is located on the Wisconsin DNR’s website here.