Does salt brine rust cars faster than rock salt?

This theory is widespread throughout the country.  However, there is no scientific evidence to support it.  Following are some facts about the use of salt brine that might ease resident concerns:

  • Salt brine is merely a mix of 23% salt and 77% water by weight.  The use of salt brine 1) improves Green Bay’s de-icing results; and 2) reduces Green Bay’s road salt use by 25% to 30% compared to using rock salt.
  • Salt doesn’t melt ice/snow or rust metal unless it gets wet.  Salt does not rust painted or coated metal.
  • Rock salt contains gravel and other impurities from the mining process that can chip car paint and expose metal. Salt brine contains no gravel and does not chip paint, which reduces the chance of exposing metal surfaces to rust.
  • The modern vehicle manufacturing process involves a much better metal preparation process than older vehicle manufacturing methods.

Salt brine and road salt both corrode exposed metal.  But as discussed above, there is no proof that salt brine is any harder on vehicles than road salt.

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1. How do I report a parking violation?
2. How do I pay a parking ticket/citation?
3. What is the wheel tax?
4. How do I report long grass?
5. What ordinance governs long grass and/or weeds in the City of Green Bay?
6. What is the maximum length of a lawn before it violates the ordinance?
7. What if my neighbors are repeatedly not cutting their lawn? Do I have to call every time?
8. What if the grass is too long in the back yard? Can I report that?
9. What consequences exist if I or my neighbor(s) don’t cut our lawn and the City cuts it?
10. What is the process for getting my neighbor to cut their lawn?
11. Why does yard and garden waste have to be placed on the terrace and can’t be placed in the street?
12. If yard and garden waste is not allowed in the street, why can DPW place it in the street when collecting?
13. Who is responsible for repair of terrace grass damaged by DPW during the yard and garden waste collection process?
14. Why doesn’t DPW collect yard and garden waste in one day’s route before going to the next day’s route?
15. Why do residents need to separate grass/leaves from brush and other yard waste when placing it at the curb?
16. If DPW uses sanitation collection maps for yard and garden waste collection routing, why isn’t yard waste collected on the same day as trash and recycling?
17. Why can’t DPW advertise in advance what specific streets yard and garden waste will be collected each day so residents can plan clean-up efforts accordingly?
18. Why is a round of east side yard and garden waste collection typically completed before a west side round?
19. What is Green Bay’s snow plowing policy?
20. Why does my driveway apron get more snow pushed into it than my neighbor’s driveway?
21. How is snow-pack and ice on residential streets supposed to melt if Green Bay does not use salt on residential streets?
22. Why are residents required to shovel their sidewalk, but not their driveway?
23. Why is the City allowed to plow street snow onto my driveway apron?
24. The snow plow damaged my mailbox. Who is responsible for fixing it?
25. The snow pack is building up on my street, and it’s slippery and bumpy. What can be done?
26. Can I get salt on my residential street to melt the snow pack and ice?
27. My neighbor is shoveling and snow blowing snow in the street. Is this legal?
28. Does salt brine rust cars faster than rock salt?