Work Zones



Nearly 70,000 miles of roads are open to public travel in Montana. The Montana Department of Transportation (MDT) is responsible for maintaining over 10,800 miles of highway and about 2,100 bridges.

MDT has 127 maintenance crews throughout the state. Maintenance activities include road surface repairs, guardrail maintenance, sign installation and maintenance, sweeping of roadways, spraying and mowing of weeds, tree and debris removal, plowing and moving of snow, spreading and distribution of roadway deicer agent.

Contractors and consultants perform much of the states highway corridor studies, safety projects, bridge upgrades, and highway reconstruction and construction projects.

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Questions? Comments?
Please at 406.454.5897.