Overton, Neb. — Nebraska State Patrol Troopers worked a semi rollover Monday morning on I-80 eastbound near Overton. Both lanes were blocked. The lanes have have been reopened. The Dawson County Sheriff’s Office assisted at the scene by directing traffic off the interstate. No injuries were reported. A towing service was called to remove the semi from the interstate. The mishap occurred about 3 miles west of Overton at mile marker 245. No information was available on what caused the semi to go on its side.