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Project Overview

The Montana Department of Transportation (MDT) is partnering with Century Companies, Inc. on roadway improvements along MT 7 from Wibaux extending 24 miles south towards Baker to improve safety and access for all users. This project consists of 3 tied projects that will take approximately 2 years to complete. MDT and Century Companies Inc. are committed to improving the highway with minimal inconvenience to the traveling public.

Project 1 – Bridge Replacements

Includes two bridge replacements. One bridge in Wibaux on Old Highway 10 across Beaver Creek, and another one mile south of Wibaux across Beaver Creek on MT 7.

Phase 1

The first bridge replacement will take place at Beaver Creek - Wibaux 1 Mile South of Wibaux. Construction at this site will include replacement of the bridge, grading, surfacing, and guardrail. This phase will begin with mobilization and construction of a temporary bridge detour to maintain traffic flow. The temporary bridge will be located just west of the existing bridge. This detour will allow traffic to continue to cross Beaver Creek on MT 7 while the existing bridge is removed and the new bridge constructed. Additionally, this detour will create a separation of motorist from construction activities creating a safer environment for motorist and construction workers.

Overlay work on Nolan Ave., G St., and Orgain Ave will occur in the Fall of 2022. This overlay work prepares these roads to become a detour route (for over-height trucks either traveling from Baker going westbound on I-94 or coming eastbound on I-94 and going to Baker) during the construction of the new bridge on Old Highway 10 in 2023. The existing truck route will serve as a detour at the same time for traffic traveling from Baker going eastbound on I-94 as well as traffic traveling from North Dakota and heading south towards Baker. Information on these detour routes will be posted as their use becomes necessary.

Phase 2

The second bridge replacement will take place at the Beaver Creek bridge located on Old Highway 10, west of the MDT Rest Area and east of Amsler’s Convenience Store. Construction at this site will include replacement of the bridge, grading, surfacing, sidewalk, curb and gutter, and guardrail. This phase is anticipated to start in Spring of 2023. More information on the detour route will be released closer to construction.

Project 2 – Curve Improvements

Curve safety improvements consisting of shoulder widening will occur along with culvert replacement, fencing and rumble strips approximately 7-12 miles south of Wibaux on MT 7. Two existing timber bridges will also be replaced with culverts. During this construction, traffic control will be used to guide motorists through the project. Temporary detours will also be used to route motorists around timber bridge replacements, and new culvert installations. Traffic may be reduced to a single lane at times during working hours.

Project 3 – Roadway Improvements

Consists of crack seal, chip seal, and pavement markings starting approximately 1 mile south of Wibaux and extending south for approximately 24 miles. This work will extend the life of the existing pavement surfacing.

Wibaux County Highway Improvements include:

  • Two new bridges
  • New curb and gutter
  • Shoulder widening
  • Guardrail and fencing upgrades
  • New drainage structures
  • Rumble strips
  • New pavement markings
Wibaux Project 3 map

Staying in the know

For regular project updates:

  • Email updates: Contact Denae via email
  • Text message/SMS updates: text WIBAUX to 844-764-2126
  • Project hotline: 406-220-5832

Note: Message and data rates may apply. Four messages/month. Reply STOP to opt-out anytime. Reply HELP for help. Texting alerts are not managed by MDT and may have different privacy and security policies. Terms and Privacy Policy can be found at https://simpletexting.com/terms

Work Zone Safety

MDT wants everyone to remember the three S’s of work zone safety: speed, space, and stress. Slow down in work zones and follow speed limits. Leave enough room around your vehicle. Stay calm and pay attention to the road. Be prepared for delays before you leave, download MDT’s mobile app “MDT 511” or visit 511mt.net and check your route. If you're driving and want to check in, pull safely off the road and dial 511. Tune in to local radio stations and watch for variable message signs along the route.

Slow for the cone zone. Give workers a break. Stay alert! Better roads ahead.

Alternative accessible formats of this document will be provided on request. Persons who need an alternative format should contact the Office of Civil Rights, Department of Transportation, 2701 Prospect Avenue, PO Box 201001, Helena, MT 59620. Telephone 406-444-5416 or Montana Relay Service at 711.

UPN: 8799000