Emergency: All St. Louis County offices are now open to the public.
What to know when visiting a county building
Information on COVID-19, vaccines and testing

Dust Control and Grading


Dust Control

Criteria for dispensing Calcium Chloride on County and Unorganized Township roads for dust control

Roads must have a minimum Annual Average Daily Traffic (AADT) count of 50 cars per day to have chloride applied in front of homes. Medical exemptions for symptoms such as emphysema or asthma are taken into consideration if documentation from a physician can be provided.

Roads that have a AADT count that exceeds 200 cars per day will receive solid dust control. Solid dust control is the continuous application of Calcium Chloride to the road surface. On stretches of road  that are not populated, but meet the solid dust control standards, Calcium Chloride will not be applied to the road surface to save on product costs. 


Grading of either County and/or Unorganized Township roads will be done on an "as needed" basis. Factors such as weather, ground conditions, when the road was last graded, and available equipment and/or personnel are all taken into consideration by the road foreman.


4th District Highway Superintendent
Dale Johnson
Linden Grove Office:

Ely Office:  

5th District Highway Superintendent
Gordy Halverson
Pike Lake Office:

6th District Highway Superintendent

Darrel Brodeen

7th District Highway Superintendent
Gerald VanGuilder