Montana Department of Transportation

Montana Department of Transportation The official page of the Montana Department of Transportation. For any roadway emergencies, please dial 911.*

MDT’s mission is to plan, build, operate, and maintain a safe and resilient transportation infrastructure to move Montana forward. To accomplish this mission, MDT will set the gold standard for a highly effective, innovative, and people-centric department of transportation.

*This page is not monitored 24/7.

It is Good Roads Day! Established by the Montana Legislature in 1947, Montanans are asked to contribute toward the impro...
06/16/2026

It is Good Roads Day! Established by the Montana Legislature in 1947, Montanans are asked to contribute toward the improvement and safety of public highways. MDT Director Chris Dorrington says that today “is an opportunity for us all to recognize the hard work that our MDT team and partners do to ensure safe travel and efficient movement of people and commerce.”
Let us know in the comments: what do good roads mean to you?

On Wednesday, June 17, between 8 am and 4 pm, the Northern Cheyenne and Oglala Sioux will be participating in a memorial...
06/15/2026

On Wednesday, June 17, between 8 am and 4 pm, the Northern Cheyenne and Oglala Sioux will be participating in a memorial horseback ride to commemorate the 150th Anniversary of the Battle of the Rosebud. The ride will occur on Secondary Highway 314 (S 314) between Kirby and the Rosebud Battlefield State Park. Travelers should expect riders on the roadway and consider taking alternate routes. For the most up-to-date roadway information, please visit 511mt.net.

⚠️Plains/Ravalli - Crews will be patching on MT 200 west of Dixon, between mile markers 102 and 104. Work will be done 6...
06/15/2026

⚠️Plains/Ravalli - Crews will be patching on MT 200 west of Dixon, between mile markers 102 and 104. Work will be done 6/16 to 6/17, weather and other factors permitting. Travelers should expect lane closures, flaggers, and reduced speeds through the work zone. Watch for equipment on the roadway! Check MDT 511 before you travel for current information: 511mt.net

06/14/2026

Wherever your summer travels take you, get there safe! Don't drive distracted.

School is officially OUT for summer! While the kids are enjoying the break, it’s a great time to teach them about being...
06/13/2026

School is officially OUT for summer! While the kids are enjoying the break, it’s a great time to teach them about being a 'Drain Ranger' in our community.
Before you head out to the lake, take a few minutes to help protect our local watersheds:
🚮Pick up litter: Grab any loose trash in your yard or neighborhood so it doesn't wash into the storm drains during summer thunderstorms.
🧼Car Wash Party?: If you're washing the car at home, do it on the grass so the soil can filter the soapy water, or head to a commercial car wash that recycles its water!
🐕💩Pet Cleanup: Remind the kids that picking up after the family dog prevents harmful bacteria from reaching our favorite swimming holes.
Let’s keep Montana’s water pristine all summer long!

⚠️Missoula – MDT and Pavement Maintenance Services Inc. will begin applying a seal and cover (chip seal) at eight sites ...
06/11/2026

⚠️Missoula – MDT and Pavement Maintenance Services Inc. will begin applying a seal and cover (chip seal) at eight sites the week of June 15, weather and unforeseen factors permitting. During application there will be temporary disruptions to driveways and other access points. When fresh chip seal oil is applied to the street in front of an access point, that access point cannot be used for approximately 30 minutes.

On-street parking will also be temporarily disrupted. To avoid towing, all vehicles parked on the streets within work zones will need to be moved prior to construction.

Chip seal work is expected to take a few days to complete, with temporary pavement markings being applied over the weekend, July 19 to 21. After temporary paint has been applied, construction will pause until late July when crews are expected to return to apply the permanent pavement markings.

Missoula County, Montana - Government
Missoula County Sheriff's Office

- the cover of the 1954 Montana Highway Map 🗺️Where will your summer travels take you?
06/11/2026

- the cover of the 1954 Montana Highway Map 🗺️
Where will your summer travels take you?

⚠️Polson/Lakeside areas - Crews will be repairing guardrail on US 93 in the northbound lane south of Angel Point Road, a...
06/10/2026

⚠️Polson/Lakeside areas - Crews will be repairing guardrail on US 93 in the northbound lane south of Angel Point Road, at mile marker 95.8. Work will be done 6/11, weather and other factors permitting. Travelers should expect lane closures and reduced speeds of 35 mph in the work zones. Watch for equipment on the roadway. Always check 511mt.net before you go for current information.

One more "Welcome to Montana" sign is installed and ready to welcome travelers! You know the drill - tell us where you t...
06/10/2026

One more "Welcome to Montana" sign is installed and ready to welcome travelers! You know the drill - tell us where you think it is!

06/09/2026

Precipitation chances return Tuesday through Thursday, with isolated thunderstorms possible during the afternoon hours. Light snow will impact the higher terrain, bringing colder conditions to the backcountry. Cooler temperatures with breezy to gusty winds will also impact the region Tuesday and Wednesday.

Address

2701 Prospect Avenue
Helena, MT
59601

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+14064446200

Website

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