Minnesota Department of Transportation

511 Travel Info

Maintaining Minnesota's Highways



MnDOT is responsible for approximately 31,000 lane miles of state roadway, 3,909 of which are in the Twin Cities Metro area.
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Helpful links


The Maintenance Operation Research program encourages and funds applied research to assist in developing innovations. It promotes operational or "hands on" research, encourages the development of ideas and methods that improve transportation, and furthers implementation. Research areas include:

  • Winter maintenance
  • Winter material
  • Road and bridge maintenance
  • Roadside maintenance
  • Equipment/tools
  • Safety, traffic control and workzone safety
  • Technology

"On the road" research is our strength, but we also support some laboratory research. Learn more about ongoing maintenance research projects by reviewing our project status spreadsheet (PDF).

Monthly bulletins (PDF)

Older bulletins

Biennial reports


  • Project report form (Word)
  • Project proposal form (Word)
  • New product information form (Word(PDF)
  • Vendor checklist for anti- and de-ice chemicals (Word(PDF)