Mile High Music Festival - traffic

The Mile High Music Festival is backing up traffic on I-70, Havana and Northfield exits. So if you're planning to go, tack on an extra 20 minutes or so to park the car. AND , if you have a flight at DIA to catch, you'll want to make sure you have a little extra gas in the car and leave 20-30 minutes early, or if you have the option, take something else besides I-70 to get there if you can (Tower Road, E-470 toll road, etc)