Road deicing is a major cause of chloride impairment in Minnesota’s urban waters. Aiming to reduce these impacts, Minnesota DOT researchers partnered with the City of Edina to test an adaptive management approach to deicing.
Through adaptive management—repeatedly checking the effects of actions and making adjustments—the researchers found that most of the chloride movement in a residential watershed occurred during a small number of winter events, which allowed maintenance staff to make targeted adjustments to their deicing operations. Researchers created a training manual on using adaptive management for deicing and a spreadsheet tool to help agencies improve their deicing operations.
Image courtesy of Minnesota DOT