To tame winter storms, Wisconsin's county highway departments plow and provide ice control on all state and US-numbered highways, and the Interstate system. This arrangement is unique to Wisconsin and for more than 85 years has provided efficient and cost effective winter service for all Wisconsinites.
The following explanations and links are intended to provide you with insight into Wisconsin's snowplowing guidelines
View snow plowing service map
18 and 24-hour service page contains a map that shows which highways are maintained for 18 or 24 hours a day during a winter storm event.
passable roadways page details the level of effort, during a winter storm event, that different categories of highways receive.
- The road salt storage (TRANS 277) page contains information and forms for persons who store salt that is intended to be used on highways. "Highways” means all ways and thoroughfares and bridges on the same and any streets, alleys, driveways, parking areas, state trunk highways, county trunk highways, town roads, national parkways, expressways, interstate highways, freeways and roadways commonly used for vehicular traffic, whether public or private.
weight restrictions programs page includes information on the frozen roads declaration and spring thaw weight restrictions.
frequently asked questions page give answers to many questions about Wisconsin's snowplowing and salt usage.
winter facts page includes interesting facts about snowplows, salt usage, and other winter maintenance issues.
- See a problem on the state maintained highways this winter?
Please contact us.
2017-2018 Annual Winter Maintenance Report
2017-2018 Annual Winter Maintenance Report - Executive Summary
2015-2016 Salt Storage Needs Report
For Roadway Weather Information System (RWIS), rest area weather monitors, weather forecasts:
Wisconsin DOT RWIS Program Manager
For storm reports, winter maintenance manual, best practices, safe winter driving campaign, snowplow crashes, webpage development:
Allan Johnson, P.E.
WisDOT Winter Maintenance Engineer