Visiting Chicago for work, Julie Radakovich and Sarah Arslanian strolled through Grant Park on Monday morning, just hours after the final performers of Lollapalooza 2026 left their stages, capping a four-day run that packed the park with an estimated 400,000 fans, brought out scores of musicians, drenched the grounds in rain and left behind acres of torn-up grass and brought its usual share of modest mayhem.
The festival left the city with a familiar tally: 10 arrests, zero tickets issued and 67 trips to the hospital, according to the city’s Office of Emergency Management and Communications — figures roughly in line with recent years. Lollapalooza’s promoter, C3 Presents, is now on the hook for the cleanup, including what could be a costly restoration of Grant Park’s grass, which had disappeared under the crowds by the festival’s third day.
“It certainly is a presence,” Radakovich, 36, who hails from the Pacific Northwest, said of the festival that has made Grant Park home for more than 20 years. She and Arslanian, 56, of Canada, joined dog walkers and runners in weaving around roadblocks and cleanup crews while an artist on a nearby bench sketched a scene of the park — festival aftermath and all.
Radakovich noted the event complicated sightseeing plans in nearby Millennium Park. “I couldn’t get to the Bean yesterday,” she said.
Social media posts showed festivalgoers splashing through puddles, mourning ruined shoes and wrestling in deep mud after the weekend rain. Organizers laid wood-chip mulch over the soggiest stretches of the festival grounds to keep people from slipping.
At an unrelated news conference on Monday, Mayor Brandon Johnson declared the weekend a success, mess or not.
“Is it worth 400,000 people coming into our city over the course of four days, as a complement to having more visitors come to our city than any other time in the history of Chicago?” Johnson asked rhetorically. “And those young people that are here, they’re just providing the prelude of what’s to come. The top destination for college graduates is the city of Chicago. So we might as well get used to it, you all.”
Under the current 10-year contract, inked in November 2022, C3 Presents is responsible for general cleanup and trash removal from the festival grounds, the sidewalk and shrubbery along Columbus Drive, as well as the area around Buckingham Fountain and the sidewalk closest to Jean Baptiste Point DuSable Lake Shore Drive. The concert promotion company must also clean off posters and stickers hung by guerrilla marketers on the light poles lining Columbus and Congress.
The most time-consuming part of the post-Lolla cleanup, though, is typically restoring Grant Park to its “pre-load-in” condition — replanting bushes, trees and flowers, fixing mesh fencing, seeding or sodding the festival grounds. The Chicago Park District and Lollapalooza organizers are required to assess the damage within a week of the festival’s last day and agree on a restoration plan.
Festivalgoers slog through mud at Lollapalooza in Grant Park on Aug.
1, 2026. (Arthur Maiorella/Chicago Tribune)
Marissa Casaclang dances in standing water at Lollapalooza in Grant Park on Aug. 1, 2026. (Arthur Maiorella/Chicago Tribune)
Festivalgoers dance in the mud at Lollapalooza in Grant Park on Aug. 1, 2026. (Arthur Maiorella/Chicago Tribune)
A woman walks through mud between Lollapalooza stages on Aug. 1, 2026 in Grant Park. (Arthur Maiorella/Chicago Tribune)
The mud between Lollapalooza’s T-Mobile and Allianz stages was, at spots, inches deep on Aug. 1, 2026 in Grant Park. (Arthur Maiorella/Chicago Tribune)
A festivalgoer slips in the mud at Lollapalooza in Grant Park on Aug. 1, 2026. (Arthur Maiorella/Chicago Tribune)
A piece of a shoe lies in the mud at Lollapalooza in Grant Park on Aug. 1, 2026. (Arthur Maiorella/Chicago Tribune)
“JW,” left, and “AP,” dance in the mud at Lollapalooza in Grant Park on Aug. 1, 2026. (Arthur Maiorella/Chicago Tribune)
A festivalgoer slips in the mud at Lollapalooza in Grant Park on Aug. 1, 2026. (Arthur Maiorella/Chicago Tribune)
Noelle and Jason Schlicher dance in the mud at Lollapalooza in Grant Park on Aug. 1, 2026. (Arthur Maiorella/Chicago Tribune)
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Festivalgoers slog through mud at Lollapalooza in Grant Park on Aug.
1, 2026. (Arthur Maiorella/Chicago Tribune)
Those costs vary depending on the weather. Cleanup for the 2011 festival, known as one of the muddiest in recent memory, cost $1 million. Park District spokeswoman Irene Tostado said in a written statement Monday she expects the walk-through to assess damage the week of August 10. “We will have a better grasp of timing for the restoration after the walk-through is complete,” she said.
The current park district contract did not include an ask from some park and neighborhood advocates that the company — which also hosts the Sueños Festival at Grant Park — chip in for longer-term infrastructure work.
Given the cost and downtime of repairing the grounds year after year, some had hoped the festival would help pay for wastewater and flood management in and around upper and lower Hutchinson Field, where most big event action takes place. That didn’t make it into the contract signed by former Mayor Lori Lightfoot. C3 Presents did agree to resurface Grant Park’s tennis courts and to build new pickleball courts.
As part of its Grant Park framework, the park district included improved drainage systems for the lawn at lower Hutchinson Field and added “performance infrastructure” — loading areas and heavy-vehicle parking — to cut down on recovery time between events. That framework remains more of a wish list, contingent on future funding.
Workers pack up Lollapalooza stages and tents in muddy Hutchinson Field at the south end of Chicago’s Grant Park on Aug. 3, 2026. (Brian Cassella/Chicago Tribune)
Leslie Recht, the president of the Grant Park Advisory Council, said lower Hutchinson “needs serious drainage,” but to make that happen, the Park District would have to “raise it some,” a proposition that would take time and potentially threaten future festivals. If it does happen, she hopes the district considers adding turf instead of grass. Whether seed or sod, it takes time to grow in, limiting public access to the park.
Sandee Fenton, spokeswoman for C3, declined to comment on whether the company would support or pitch in for site improvements that might reduce restoration costs. “We are just wrapping another successful Lollapalooza where we hosted close to a half million music fans in Grant Park,” she said in an email. “We need some time to load out this week as well as put together the remediation plan with the Park District. That’s our focus right now.”