2006 with broken frame - no help from Toyota

I think Utah uses mag chloride. I went to Moab for thanksgiving one year and it snowed on my way home. I remember seeing that dry white liquid looking film all over my truck when I got home. To me that's indicative of mag chloride.

 

Some counties might use something different, but udot is stating "white salt and brine". We have a lot of salt in the desert and I think my local county uses just white salt. It's not as bad as people think. Just wash your car and keep the bare metal coated. Obviously it's worse than states without any snow, but my windshield likes salt more than sand.
https://www.deseret.com/2014/11/25/...trategy-udot-has-saved-30-percent-of-its-salt
https://www.udot.utah.gov/main/f?p=100:pg:0:::1:T,V:2,70433

 

This is for the MD/DC area:

Materials Available for 2015-2016 Winter Season

Salt is the principal winter material used by SHA. It is effective at pavement temperatures of 20° F and above.

Salt brine is a solution that can be used as an anti-icer on highways prior to the onset of storms, or as a deicer on highways during a storm. Salt brine is 27 percent salt and 73 percent water. SHA makes extensive use of this material. It has a freeze point of -6° F. Salt brine will be produced and used at SHA’s 14 brine making facilities.

Magnesium chloride (mag) is a liquid winter material used in deicing operations. The material has a freeze point of approximately -26° F. It is used in the colder regions of the state, primarily in the northern and western counties.

Abrasives including sand and crushed stone are used to increase traction for motorists during storms. This is mostly used in Western Maryland.

By way of comparison, the Atlantic Ocean is 4% salinity. The Great Salt Lake UT is 14%. The Dead Sea is 33%.

 

No, they don't at all.

They do sand and gravel. Your frame doesn't rust, but your paint and windows get sandblasted. We also only get 11" of rain a year so rust isn't much of a problem up here even though its the 'north'.

 

Straight from MDot https://www.mdt.mt.gov/travinfo/travinfo_faq.shtml