An accident in Clay County sent an Excelsior Springs man to the emergency room Friday night. The Highway Patrol reports Christopher Larson, 47, was northbound on Route N, north of 114th street, when he ran off the roadway, struck an embankment and overturned.  He was taken to Liberty Hospital with minor injuries. Charges of driving while intoxicated and failing to drive on the right half of the roadway are pending.