Nebraska authorities have reported five traffic deaths on state roads since Sunday.
Through April, Nebraska road fatalities were 57 for 2013, two fewer than at the same time in 2012.
Tuesday: Joe Willhoit, 55, of North Platte died just before 7:30 p.m.
Willhoit was driving a farm tractor east on Highway 70 near Westerville when it was struck from behind by a 1991 Chrysler LeBaron. The Chrysler driver, Joseph White, 25, of Sargent, Neb., was treated at a Broken Bow hospital and released.
Tuesday: Sulaymon Usmanov, 29, of West Springfield, Mass., died in a semitrailer about 3 p.m. on westbound Interstate 80 near Cozad.
The semitrailer left the roadway, overcorrected and veered into the north ditch before overturning, the Nebraska State Patrol said.
Usmanov was an unrestrained passenger in the sleeper cab and ejected from the vehicle. The driver, Akhmed Afrailov, 28, of Pittsburgh was taken to a Cozad hospital with minor injuries.
Tuesday: Christopher Matthies, 29, of Stanton, Neb., died at a Lincoln hospital of injuries in a crash north of Stanton in early April. Matthies and two passengers were injured April 6 in a one-vehicle accident on a county road north of Stanton.
Monday: Rex Dodd, 46, of Bethel, Mo., was pronounced dead after his minivan collided with a garbage truck.
The State Patrol said the accident occurred about 10 a.m. on U.S. Highway 20, about a half-mile west of Jackson. The minivan crossed the center line and clipped a semitrailer before striking the garbage truck.
The garbage truck driver, Troy Lane of Sioux City, Iowa, was treated at Mercy Medical Center in Sioux City. The semi driver wasn't hurt.
Sunday: Cristi Fathke, 41, of Jackson died after her southbound motorcycle veered into a ditch after failing to negotiate a curve. The crash occurred on Highway 35 in Dakota County. She died at Mercy Medical Center in Sioux City.
The World-Herald News Service and the Associated Press contributed to this report.