POLK COUNTY, Iowa — A 61-year-old Des Moines man died Sunday afternoon after his motorcycle left Interstate 80 and struck a cable barrier in Polk County.
According to an Iowa State Patrol crash report, Frederick C. Olson, 61, of Des Moines, was traveling westbound on Interstate 80 near mile marker 137 at approximately 4:50 p.m. Sunday, Nov. 8.
Investigators reported that Olson was navigating a curve in the left lane when his 2014 Harley-Davidson motorcycle left the roadway onto the left shoulder…