A Mendon woman is in serious condition after a one vehicle accident in Lafayette County, just before 8:30 last night. According to the Highway Patrol, 61 year old Gloria Foster was Eastbound on Highway 24, a mile East of 23 Highway, when she traveled off the right side of the road, down a steep embankment and struck the incline at the bottom. Foster was flown to Truman Medical Center in Kansas City.