Rollover On I-90 Near Spearfish Claims One Posted by John Axtell Date: April 10, 2020 4 Views SPEARFISH, S.D. (AP) – A single-vehicle rollover accident on Interstate 90 east of Spearfish about 8:15 Thursday morning claimed one life. The South Dakota Highway Patrol says the 39-year old male driver, whose name is being withheld pending notification of family, was alone. The Patrol says the man was westbound in a pickup about 7 miles east of Spearfish when he went off the road to the right, collided with a guardrail, and entered the north ditch where the pickup tipped and rolled.. The man was not wearing a seat belt and was thrown from the pickup. He later died at a Spearfish hospital.