Montana Department of Transportation

Malcolm “Mack” Long, Director


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MDT News

Construction To Begin On I 90 Between Manhattan & Livingston

BOZEMAN/BELGRADE - The Montana Department of Transportation (MDT)
will begin construction soon on two projects to improve Interstate 90
between Manhattan and Livingston. The projects will improve safety,
provide a smoother driving surface, and extend the life of the
roadway for many years through this important corridor. 

The I 90
Manhattan to Belgrade Project will rehabilitate the pavement and
upgrade guardrail from the Manhattan Interchange (Exit 288) to about
three miles east of the Belgrade Interchange (Exit 299). Construction
is anticipated to begin the week of May 10th.  

Work will begin
first on the westbound lanes. What to expect during construction:

Traffic will be reduced to one lane in the westbound lanes. 

Eastbound traffic will remain two lanes.

- Speed limits will be
reduced through the work zone. 

- Wide loads will be staged and
piloted through the work zone Monday - Friday.

- 12-foot lane
restrictions will be in place from 6 a.m. to 10 p.m.

- 14-foot lane
restrictions will be in place from 10 p.m. to 6 a.m.

MDT anticipates
work to begin on a second project in late May to upgrade and install
new guardrail over the Bozeman Hill Pass. The project begins east of
the Bozeman Trail Road Interchange (Exit 313) and ends about two
miles east of the Flynn Creek Road Interchange (Exit 324). 

Construction of both of the projects is expected to be completed in
the fall 2021. 

"These projects will help ensure the roadway remains
safe and will prolong the life of the road for years to come," said
MDT Engineering Project Manager Craig Walker. "For the safety of
workers and other motorists, please pay attention to posted signage
and slow down through the work zones."

MDT encourages motorists to
plan ahead, allow extra travel time, slow down and use caution
through work zones on Interstate 90. Current construction information
and road conditions throughout Montana can also be found at

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