Gravel Road Dust Control and Chloride Schedule

RCOC Gravel Road Dust-Control Schedule

     The 2022 gravel road schedule for applying dust chloride to just over 750 miles of gravel roads throughout Oakland County schedule is now available. 

For the latest schedule: CLICK HERE

The schedule is typically updated monthly beginning in approximately April and ending in October.     

      Please note: These dates are tentative and are subject to a variety of variables which can and do result in changes to the schedule. These variables include availability of equipment and manpower, weather and other factors. 

1. Basic chloriding service for primary gravel roads includes five (5) applications per year dependent on weather and the availability of equipment and manpower

2. Chloride applications are not done on all local gravel roads. They are only done when they are paid for either by the township, homeowners or a combination of both. The township or homeowners choose the number of applications per season and pay a per-application cost. 
3. Questions should be directed to the Road Commission's Department of Customer Services at 877-858-4804 or by emailing   

​Gravel Road Grading Fast Facts:

  • Just over 750 miles of gravel roads under the jurisdiction of the RCOC in Oakland County  (over a quarter of our roads)
  • RCOC operates independently of Oakland County general government and does not receive any property taxes for its operations. Money for road maintenance comes from state gas taxes and vehicle registration fees. The state, through a formula established by the legislature, sends an allocation to the RCOC.  The state gets the biggest share for their road system.
  • Only 19 motor graders in the county (graders do need routine maintenance and have mechanical breakdowns)
  • How many miles each grader can reshape/grade in a day?  Not as many as you would think. Each grader does 5 to 6 miles daily.   Schedule rotation takes 4 to 6 weeks, so if you have been waiting 3 weeks since the last grading, you may still have to wait for a bit.
  • Speed at which graders move – 3 miles per hour
  • Multiple passes necessary to grade the road.  Not completed in one pass.  
  • Very expensive equipment.  Operator needs to be properly trained.  It is an art as well as a science.
  • If grader operators feel pressured to cover more miles, it can also create wash boarding problems.  Needs to be done slow and steady.  Can’t be rushed.
  • Weather can affect the schedule.  They can’t grade if it is too wet or in driving rain.
  • Chloride applications have to be coordinated with grading to avoid dust problems.
  • Many moving parts to the grading schedule and they like to adhere to it to avoid missing a road.  Like to stick to the rotation.
  • SLOW DOWN!   Once the road is graded, slow down!  The smoother surface will last longer.
  • Following a major storm event, staff will address primary (heavier-traveled) gravel roads first and work their way toward roads that carry less traffic, such as subdivision roads in townships.  
  • For information on gravel roads, view our gravel roads brochure.

​Additional Information and Dust-Control Schedule:

2022 Gravel Road Dust Control update: CLICK HERE

2022 Gravel Road Dust-Control Press Release

2022 Gravel Road Dust-Control Application Instructions

2022 Gravel Road Dust-Control Application (due April 25, 2022)

​Photos/Brochures/Gravel Road Paving Plan/Dust Control Video:

Gravel Roads Photo Gallery

Gravel Roads Brochure

Roads in Oakland County townships (brochure)

Gravel Road Paving Plan (updated 1/5/21)

Grader on on Lochaven Road

R.C.O.C. truck with brine tank