The Idaho Transportation Department said Friday an Imperial Oil/ExxonMobil test shipment will leave Monday night for Montana from the Port of Lewiston.
The test validation is scheduled to top Lolo Pass and travel to Lolo Hot Springs early Thursday, a 180-mile move in three nights.
The load is 24 feet wide, 30 feet high, 208 feet long and weighs approximately 508,000 pounds. It will assist Imperial/Exxon to plan for potential future Canada-bound shipments on U.S. Highway 12, an ITD release said.
Jim Lynch, director of the Montana Transportation Department, said Friday his office had not yet issued the moving company, Mammoet, a permit for the eight-mile trip from the pass to Lolo Hot Springs.
"They still have to give us some information to move it," he said.
No pullouts have to be constructed on the eight-mile stretch, Lynch added.
ITD said the test shipment is scheduled to leave Lewiston on Monday at 10 p.m. PDT and travel to Kooskia by 5:30 a.m. Tuesday. It'll leave Kooskia at 11 p.m. Tuesday and travel to milepost 139. It's scheduled to travel over Lolo Pass at about 2:30 a.m. Thursday.