Thousands Gather for Chicago River Dyeing on St. Patrick's Day

The annual tradition draws visitors from across the country to witness the iconic green river.

Mar. 14, 2026 at 10:48pm

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Thousands of Chicagoans and visitors from around the country gathered along the Chicago River to witness the annual tradition of dyeing the river green for St. Patrick's Day. Members of the plumbers' union, Local 130, poured orange dye into the river, turning it a vibrant green as onlookers lined the banks and bridges to take in the spectacle.

Why it matters

The dyeing of the Chicago River is an iconic St. Patrick's Day tradition that has been taking place for decades, drawing crowds from near and far to celebrate Irish heritage and culture in the city. The event highlights Chicago's festive spirit and serves as a kickoff to the city's broader St. Patrick's Day celebrations.

The details

Thousands of people, including visitors from California and Tennessee, gathered along Wacker Drive and the bridges over the Chicago River to witness the annual dyeing process. Members of the plumbers' union, Local 130, poured orange dye into the river, which quickly transformed the waterway into a glowing green color. Attendees marveled at the science behind the dye process and the energy of the crowd, with some making special trips to the city to experience the tradition.

  • The river dyeing took place on March 14, 2026.
  • The South Side Irish Parade and the Northwest Side Parade are scheduled for the following Sunday.

The players

Local 130

The plumbers' union responsible for dyeing the Chicago River green for the St. Patrick's Day celebration.

Amanda Griffin

A visitor from Michigan who brought her daughter, Payton, to experience the river dyeing tradition.

Joe Rubin

A Chicago resident who was excited to witness the river dyeing and celebrate St. Patrick's Day.

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What they’re saying

“I don't feel like it was as populated as it is now. So it's definitely much busier, much crowded. There's drinks everywhere.”

— Amanda Griffin (cbsnews.com)

“I mean, we are turning the river green! I mean that's almost as beautiful as the Mona Lisa, granted, here in the city of Chicago area, compared to France, it's a different world and a different area.”

— Joe Rubin (cbsnews.com)

What’s next

If you didn't get a chance to see the river dyed green, it should stay that way for a few days, weather pending. The South Side Irish Parade and the Northwest Side Parade are on Sunday.

The takeaway

The dyeing of the Chicago River is a beloved St. Patrick's Day tradition that draws crowds from across the country to celebrate the city's Irish heritage and festive spirit. The event serves as a kickoff to the broader St. Patrick's Day celebrations in Chicago, showcasing the city's unique ability to embrace and honor its cultural diversity.