IDOT to hold April 25 public hearing on Route 20 ramps in Elgin The Illinois Department of Transportation will hold a public hearing on improvements proposed for the Route 20 ramps at Illinois and Lavoie avenues in Elgin from 4 to 7 p.m. Thursday, April 25, at The Edward Schock Centre of Elgin, 100 Symphony Way. According to the plan under consideration, the existing ramps at Illinois and .