Dust Control Policy for Scott County

In order to make the application for permit process more convenient you can apply for dust control three different ways: Online, telephone, or walk-in our office. You are still responsible for marking the area to be treated with lathe and colored ribbon. If you did not save your ribbon from last year you can pick some up at the Engineer's Office or at our maintenance facility on Blackhawk Trail in Eldridge.

To sign up for Dust Control:

Deadline Dates for 2015 Dust Control

Statement of Policy

It shall be the policy of Scott County to permit the application of dust palliative agents for the control of dust on county rock roads. All pursuant to the provisions of Chapter 319.14 of the Code of Iowa (Obstructions in Highways).

Approved Materials

The following materials are approved for use as a dust control palliative:

  1. Lignosulfonate (Lignin or Tree Sap)*
  2. Calcium Chloride
  3. Glycerin (soy based product made up of sugars from soy beans)
The Iowa Department of Natural Resources and the Scott County Health Department will be notified if the use of waste oil is discovered.

Information about the application of Calcium Chloride / Lignosulfonate (Tree Sap) / Glycerin

Calcium Chloride / Tree Sap may be used and reapplied at the discretion of the permit holder depending on the weather. Following application of the dust palliative, grader operators will be instructed to avoid blading the roads until mid October of each year unless potholes develop, then Scott County reserves the right to blade the treated surface as deemed necessary to protect the traveling public.

After dust control materials have been applied the permit holder is responsible for perpetually keeping the area free of chuckholes by filling them with like materials as they develop. Scott County reserves the right to scarify any treated surface portions and to maintain them as rock roads. If in the County's opinion, proper maintenance has not been done by the permit holder, the County will scarify and blade the treated section.

The permit holder is responsible for marking the areas to be treated with signs or flags so that the areas to be prepared are clear to the grader operator. Signs and flags are available at the Scott County Engineer's Office, 500 W 4th St, Davenport or at the Secondary Road Maintenance Facility, 950 E Blackhawk Trail, Eldridge. The permit holders are asked to keep the signs or flags for use in future dust control seasons.

Dust Control Contractors:
List of approved contractors and the approved material they apply.

Contractor: Pallative:
Binns & Stevens Explosives, Inc.
P.O. Box 1005
Oskaloosa, Iowa 52577
800-451-1744 or
rmtruck@kdsi.net or bse@kdsi.net
  • Calcium Chloride
Eastern Iowa Propane
4540 Lincolnway
Clinton, Iowa 52732
800-397- 2921
  • Lignosulfonate (Tree Sap)
Heffron Services, Inc.
2977 100th Street, Suite 4
Urbandale, Iowa 50322
  • Magnesium Chloride

Blue Flame Propane, LLC
18602 County Rd G34
Letts, Iowa 52754
Jennifer Dahnke

  • Lignosulfonate (Tree Sap)