The parade is at 11:00 am down Gay Street and makes its way to the World's Fair Park South Lawn for the festival at 12:00 noon.
Parking:
The 11th street garage will be open on the upper level. No one can use the lower entrance on 11th except UT Police.
UT owns the garage and will most likely be charging a modest fee to park.
There are also parking garages downtown (Walnut, Locust, etc.) operated by the city, that are typically free on the weekends.
Those city garages are closest to the parade route and 11th street is right beside the festival grounds.