The cost to repair the fields at Grant Park after Lollapalooza is estimated at $210,000 to $220,000, a Chicago Park District official said Wednesday.
Festival promoter C3 Presents is responsible for paying the bill.
Work on the park including mulch removal and soil replacement started two days after the three-day fest ended on Aug. 4, said Adam Schwerner, director of cultural and natural resources.
The park is open and the landscape restoration is expected to be completed by Friday.
Overall, the park field was in better condition compared to past years. In 2011, the hefty price tag for repairs was $800,000 when Grant Park had mud pits during the fest.
"So we have had bad years when the rain shot down at us just before a major evening event and at the end of the Sunday event when there were just hundreds of thousands of people. It was not like that this year. It was really a much more gentle year this year," Schwerner said.
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