Dean A. Suominen, 37, was sentenced to two years of supervision and was ordered to complete 100 hours of community service.
Suominen’s blood alcohol level was .20, DiSanto said. The legal limit in Illinois is .08.
The car’s computer system indicated the car was traveling at 142 mph just before it left the road, the prosecutor said
Suominen, a Shorewood resident, also must pay more than $3,000 in fines, fees and restitution. He must undergo an alcohol evaluation and attend a victim impact panel, DiSanto said.
He did not have any previous alcohol-related driving offenses.