Here is an overview map of the area with construction, walking paths, and alternate routes draw out from a variety of locations. Below are specific maps outlining the quickest way from different highways to the parking lot.
These are the directions from 35W N & S. You'll want to take the exit for University Ave. This is a one-way and you'll follow it down to Ontario St. The map picks up there.
From either direction you'll take the Huron Blvd. exit. The map picks up there.