Posted: Aug 22, 2013 3:09 PM by MTN News
UPDATE: 2 p.m.
The Montana Highway Patrol estimates the road will remain closed another four hours.
The Montana Department of Transportation reported at around 1 p.m. on Thursday that I-15 northbound at mile marker 341 is blocked by semi truck that rolled.
There is a detour in place on to the frontage road at Conrad.
The rollover happened shortly after 11 a.m. on Thursday.
It is not yet known if anyone was injured.