“I wonder if salt in Wisconsin is a different formulation than ours?”
The ‘New New Thing’ is to use some sort of ‘brine’ made from beets. They’re always trying to ‘Save The Lakes’ and I’ve lived in this area (sans Army Days) since I was 10 years old and the lakes are totally un-swimable now (is that a word?) due to algae growth, so it doesn’t look like they’re winning.
Out here (in Normal Land) they use either sand or salt, depending. There is one road near us that is so densely tree-lined that the sun never really hits it, even in winter with no leaves on the trees! That gets a lot of salt. We have a really good guy that takes care of our township roads, year-round. He’s a gem and Beau is on the Council so is always approving a raise for him every year - we don’t want to lose him! :)

-10 at 3am Potty Break for Dolly. -13 at 7am this morning. A balmy 1 degree in the greenhouse and a cozy 57 degrees in the farmhouse - and rising - I just cranked up the heat! Rumor has it that we're past the worst of it now as far as temps go. Snow by Tuesday, maybe. Hope all of you south of me are holding up against the ice and snow!