Rock salt remains the tried and true method of keeping Door and Kewaunee County roads free of ice in winter. Extensive use of road salt, however, has leeched into lakes and rivers and caused road pavement and bridges to deteriorate faster. That has Wisconsin counties pushing for salt-alternatives whenever possible. Salt brine liquid solutions have become popular with counties. Door County Highway Commissioner John Kolodziej says there are other reduced-salt alternatives that are being developed.
Door County currently gets salt brine from Brown County. Kolodziej says the county is working to develop its own salt brine equipment to save money.