Emergency personnel responded just after 6 p.m. Tuesday to a motorcycle crash on Highway 137 north of Wildwood Drive at Raymondville.
Tpr. Travis Brown of the Missouri State Highway Patrol said a northbound 2012 Harley Davidson Superglide driven by Robert D. Dailey, 34, of Lebanon, was overtaking another vehicle, ran off the highway, struck a culvert and overturned, ejected the driver who had no helmet.
Dailey, who had serious injuries, was flown to Cox South in Springfield. The motorcycle had extensive damage.
The Raymondville Fire Department also responded to the scene.