Freeway traffic will be forced into one lane Sunday to pass trucks hauling huge pieces of a smelter to Geneva Steel near Orem, the Utah Department of Transportation said.

Four convoys hauling 26-foot-wide, 48-ton loads will take up two lanes. Each truck will be escorted by the Utah Highway Patrol, UDOT safety personnel and support vehicles. The shipment was originally scheduled last Sunday but was delayed a week.The first convoy will enter Utah on I-80 from Evanston, Wyo., at 9 a.m. It will take I-84 at Echo Junction and then travel to I-15. Trucks will skirt downtown Salt Lake City by taking the west half of I-215, returning to I-15 near 7000 South. The first convoy is scheduled to reach Orem at 3 p.m.

Each convoy will be 30 minutes apart.

Motorists will be directed to the inside lane and shoulder to pass, UDOT said.

Sunday's haul is among more than 60 truckloads of equipment Geneva has moved across country from Chicago. The dismantled furnace will replace Geneva's open-hearth furnace with new cleaner-burning equipment.