What time, date is the Chicago River Dyeing for 2025? – NBC Chicago

The 2025 Chicago River Dyeing for St. Patrick’s Day will take place on March 15, with boats spreading eco-friendly dye to turn the river emerald green. Spectators can watch from Upper Wacker Drive or city bridges, with the lower Riverwalk closed. The tradition, started in 1961 by the Plumbers union, remains a closely guarded secret, with other St. Patrick’s Day events including the Archer Ave. and Chicago St. Patrick’s Day Parades.

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