Johnson County to cover half the cost of gravel-road dust control for 400-foot stretches

Johnson County will pay half the cost to treat a 400-foot stretch of gravel road in front of a residence under a dust-abatement cost-sharing program, a staff member said.

The program requires homeowners to cover the other half of the bill, the staff member said. "Through the dust abatement cost sharing program, Johnson County will pay for half the cost to treat a 400-foot area right in front of your home, while you cover the other half," the staff member said.

The county outlined the process and materials used. Public Works crews will first motor grade the surface to create a smooth, uniform path. Crews then spray the gravel with water so the dust-control product can better absorb into the surface. A magnesium chloride dust solution is applied twice at a rate of 0.25 gallons per square yard to penetrate the top layer of gravel and bind fines together, the staff member said. Teams finish by rolling the treated surface to lock in the product and help ensure a smooth ride.

"This binds the gravel fines together, creating a highly dense, stabilized surface," the staff member said. The county noted the road will retain its gravel appearance, but the treatment "significantly reduces dust kickback generated by traffic."

The transcript did not specify application costs, the schedule for treatments, eligibility criteria beyond location on gravel roads in unincorporated Johnson County, or how residents should apply; those details were not provided. No motions, votes, or formal board actions were recorded in the provided transcript.

The explanation in the session focused on operational steps and product specifications (magnesium chloride applied twice at 0.25 gallons per square yard) and the 50/50 cost-share arrangement for the 400-foot treatment length described by the staff member. Residents seeking to participate should contact Johnson County Public Works for eligibility, schedule, and cost estimates (not specified in the transcript).