Minnesota Department of Transportation

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News releases

Aug.25, 2022

Latest news releases

Chip sealing on Hwys 12 and 55 next week

WILLMAR, Minn. – A chip seal will be applied next week on Highway 12 from Kerkhoven to Pennock and from Atwater to Litchfield, and on Highway 55 from Eden Valley to Watkins. Work begins Monday, Aug. 29, and ends by Thursday, Sept. 1, depending on weather and other unforeseeable circumstances. Each road segment is expected to be completed within one day.

Drivers will encounter flagging and pilot car operations during the application process and can expect short delays.

What is chip sealing?

Chip sealing, also referred to as a seal coat, is a type of paving material that mixes asphalt with pieces of gravel. A thin layer of liquid asphalt is sprayed on first followed by the placement of gravel. The gravel is compacted, and the excess stone is swept from the surface. Chip sealing protects the pavement, increases skid resistance, and extends the life of the road.

Driving on a chip sealed road

You can drive on a freshly chip sealed road after it has been swept. A chip seal looks different than regular pavement and a road that has been chip sealed will not be as quiet as a new pavement. The rough surface can also cause an increase in vibration for bicyclists. After a winter of plowing, the vehicle noise will diminish.

Chip sealing is an important preventative maintenance tool

  • Chip seals allow MnDOT the opportunity to preserve roads for a very low cost
  • Chip seals prevent deterioration of the pavement surface from the effects of aging and oxidation as a result of sun, water, traffic and plowing
  • Chip seals enhance safety by providing good skid resistance
  • In hot weather, chip seals re-seal cracks by flowing back together

More information
The chip sealing project cost is $988,000, and the contractor is ASTECH. Learn more about chip sealing by watching this three-minute YouTube video.

Work zone reminders

  • Slow down when approaching every work zone
  • Never enter a roadway that has been blocked with barriers or cones
  • Stay alert; watch for workers and slow-moving equipment
  • Obey posted speed limits; fine for a work zone violation is $300
  • Minimize distractions behind the wheel
  • Be patient and expect delays, especially during peak travel times 

Stay connected, informed

  • Learn about road construction projects and studies (2022-2024) in southwest Minnesota and sign up for email updates on MnDOT’s website.