Show All Answers

1. What type of dust control is available?

Chloride, MC-70 and Seal Coat are your dust control options. Please contact our office at 319-892-6400 for more information.

Chloride
May be applied 2 times/year
Sprayed in liquid form
Normal maintenance to road by county maintainer after applied
Works by drawing water from the air, thus maintaining some effectiveness in dry weather.
Water soluble

MC-70 (oil)
Single application
Sprayed on rock surface
Light layer of sand applied to allow traffic to use road immediately and blot excess oil
May last multiple years if maintained well by owner. Factors affecting performance are traffic, weather, owner care and base stability.
Patching is the responsibility of the owner and must be done through the permit process which allows access to patch material at our shop locations at no additional cost

Seal Coat
Asphalt slurry and rock chips placed on a prepared base and then rolled
Care of seal coat is responsibility of permit holder.
Average life 2-6 years if properly cared for and placed over a solid base and multiple applications
Patching needs to be done through the permit process which allows access to patch material at shops

2. When is the sign-up period for dust control?

1st Sign Up - Chloride, MC-70 and Seal Coat (April 1st to the May 10th). 

2nd Sign Up - Chloride (June 1st to July 10th).

3. If the oil on my road is still good, can I keep it?

Yes. If you would like someone from the Engineering and Secondary Road Department to check it, you need a $50.00 non-refundable retain permit from our office. Then, the foreman will look at the road. If the oil is savable, the permit will allow you to obtain patch material at a County shop. If the oil is not in good shape, we will contact you so you can sign up for new oil. Permit to Retain

4. Is the retain permit refundable if my oil or seal coat can not be retained?

No. The permit fee pays for the department to send someone to go to the property and check the condition of the oil or seal coat section. The permit also allows you to pick up patch mix from a county shop to fill potholes within your dust control section.

5. I rent a house on a county road and would like to put dust control down. Can I put dust control down even if I don't own the property?

Yes. You can pay to put dust control on any county road, with county review.

6. I want to put dust control in front of my property but it will also be in front of a neighbor's house. Can I do that?

Yes. It is a County road and you can pay to put dust control on any County road you want. What you will want to do is to make sure they don’t pay for dust control for the same portion of the road, as well. If they also want dust control, you can get together and share the cost or lengthen the distance of dust control.

7. Will my dust control still be effective after they blade the road?

Yes. They can blade lightly through chloride and lignin without damaging its effectiveness. We only blade through the dust control if there are holes that need to be filled. Any dust control areas on the road need to be marked so workers know the dust control agent is there when they come through with the blade.

8. Does the County fill gaps between dust control areas?

No, we don't fill the gaps. If you have neighbors that are also getting dust control, you might want to talk to them about distances to ensure there are no gaps.