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UPDATE: Hazmat crews working on an overturned semi on Interstate 90

Posted at 9:55 AM, Jun 06, 2020
and last updated 2020-06-06 22:11:54-04

MINERAL COUNTY — The Missoula Fire Department sent a press release on Saturday morning regarding the hazmat response in Mineral County on Friday evening.

Detailed in the press release the Missoula Regional HazMat Team responded to the I-90 on ramp in Superior for a semi-trailer carrying a hazardous material that had tipped over onto its side at 5 p.m. on Friday.

The Missoula Regional HazMat Team assisted the Superior and St. Regis fire departments in identifying the product as a mixture containing trimethylbenzene.

Hazmat techs from M.R.H.T wore protective equipment and were able to enter the semi-trailer and isolate and contain the leaking product.

The leak was successfully contained to the semi-trailer and once the product was stabilized by the HazMat team, the scene was turned over to Montana Department of Transportation and the local fire department.

Initial story 11:02 p.m., 06/05/2020

(MINERAL COUNTY) — Hazmat teams are still on the scene of an overturned semi on an exit ramp off Interstate 90 near Superior.

The Montana Highway Patrol reports a semi truck hauling triple trailers was traveling at about 5-10 miles per hour when it overturned on the east bound ramp of Exit 47.

Due to the materials inside the trailer, hazmat teams were called to the scene.

A later investigation showed the two-gallon containers were carrying herbicides.

As of 10:45 p.m., Missoula’s Regional Hazmat team had almost completed a sweep of the trailer and had found no leaks.

A wrecker was standing by to remove the trailer from the ramp, according to the MHP.

The agencies on scene include Superior, St. Regis, Missoula, and the MHP.

No injuries were reported in the incident and the driver was given a warning.

The MHP reports the trucking company may do an inspection on the truck and whether the load was properly secured.